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Méndez-Yáñez A, Carrasco-Orellana C, Ramos P, Morales-Quintana L. Alpha-expansins: more than three decades of wall creep and loosening in fruits. PLANT MOLECULAR BIOLOGY 2024; 114:84. [PMID: 38995453 DOI: 10.1007/s11103-024-01481-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 06/21/2024] [Indexed: 07/13/2024]
Abstract
Expansins are proteins without catalytic activity, but able to break hydrogen bonds between cell wall polysaccharides hemicellulose and cellulose. This proteins were reported for the first time in 1992, describing cell wall extension in cucumber hypocotyls caused particularly by alpha-expansins. Although these proteins have GH45 and CBM63 domains, characteristic of enzymes related with the cleavage of cell wall polysaccharides, demonstrating in vitro that they extend plant cell wall. Its participation has been associated to molecular processes such as development and growing, fruit ripening and softening, tolerance and resistance to biotic and abiotic stress and seed germination. Structural insights, facilitated by bioinformatics approaches, are highlighted, shedding light on the intricate interactions between alpha-expansins and cell wall polysaccharides. After more than thirty years of its discovery, we want to celebrate the knowledge of alpha-expansins and emphasize their importance to understand the phenomena of disassembly and loosening of the cell wall, specifically in the fruit ripening phenomena, with this state-of-the-art dedicated to them.
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Affiliation(s)
- Angela Méndez-Yáñez
- Multidisciplinary Agroindustry Research Laboratory, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Cinco Poniente No. 1670, Talca, Chile.
| | - Cristian Carrasco-Orellana
- División Agroindustrial de Empresas Carozzi S. A., Desarrollo E Innovación Aplicada Agrozzi, Centro Tecnológico de Investigación, Teno, Chile
| | - Patricio Ramos
- Plant Microorganism Interaction Laboratory, Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile
| | - Luis Morales-Quintana
- Multidisciplinary Agroindustry Research Laboratory, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Cinco Poniente No. 1670, Talca, Chile.
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Wu X, Wang L, Xing Q, Zhao Y, Qi H. CmPIF8-CmERF27-CmACS10-mediated ethylene biosynthesis modulates red light-induced powdery mildew resistance in oriental melon. PLANT, CELL & ENVIRONMENT 2024. [PMID: 38923433 DOI: 10.1111/pce.15015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 05/31/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024]
Abstract
Powdery mildew is a serious fungal disease in protected melon cultivation that affects the growth, development and production of melon plants. Previous studies have shown that red light can improve oriental melon seedlings resistance to powdery mildew. Here, after inoculation with Podosphaera xanthii, an obligate fungal pathogen eliciting powdery mildew, we found that red light pretreatment increased ethylene production and this improved the resistance of melon seedlings to powdery mildew, and the ethylene biosynthesis gene CmACS10 played an important role in this process. By analysing the CmACS10 promoter, screening yeast one-hybrid library, it was found that CmERF27 positively regulated the expression of CmACS10, increased powdery mildew resistance and interacted with PHYTOCHROME INTERACTING FACTOR8 (CmPIF8) at the protein level to participate in the regulation of ethylene biosynthesis to respond to the red light-induced resistance to P. xanthii, Furthermore, CmPIF8 also directly targeted the promoter of CmACS10, negatively participated in this process. In summary, this study revealed the specific mechanism by which the CmPIF8-CmERF27-CmACS10 module regulates red light-induced ethylene biosynthesis to resist P. xanthii infection, elucidate the interaction between light and plant hormones under biological stress, provide a reference and genetic resources for breeding of disease-resistant melon plants.
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Affiliation(s)
- Xutong Wu
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang, China
| | - Lixia Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang, China
| | - Qiaojuan Xing
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Yaping Zhao
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang, China
| | - Hongyan Qi
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang, China
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Cao SH, Guo ZH, Liu H, Wang GM, Qi KJ, Wang ZW, Tian RP, Sha SF, Zhang SL, Gu C. Interaction among homeodomain transcription factors mediates ethylene biosynthesis during pear fruit ripening. HORTICULTURE RESEARCH 2024; 11:uhae086. [PMID: 38799127 PMCID: PMC11116900 DOI: 10.1093/hr/uhae086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/17/2024] [Indexed: 05/29/2024]
Abstract
Fruit ripening is manipulated by the plant phytohormone ethylene in climacteric fruits. While the transcription factors (TFs) involved in ethylene biosynthesis and fruit ripening have been extensively studied in tomato, their identification in pear remains limited. In this study, we identified and characterized a HOMEODOMAIN TF, PbHB.G7.2, through transcriptome analysis. PbHB.G7.2 could directly bind to the promoter of the ethylene biosynthetic gene, 1-aminocyclopropane-1-carboxylic acid synthase (PbACS1b), thereby enhancing its activity and resulting in increased ethylene production during pear fruit ripening. Yeast-two-hybrid screening revealed that PbHB.G7.2 interacted with PbHB.G1 and PbHB.G2.1. Notably, these interactions disrupted the transcriptional activation of PbHB.G7.2. Interestingly, PbHB.G1 and PbHB.G2.1 also bind to the PbACS1b promoter, albeit different regions from those bound by PbHB.G7.2. Moreover, the regions of PbHB.G1 and PbHB.G2.1 involved in their interaction with PbHB.G7.2 differ from the regions responsible for binding to the PbACS1b promoter. Nonetheless, these interactions also disrupt the transcriptional activation of PbHB.G1 and PbHB.G2.1. These findings offer a new mechanism of ethylene biosynthesis during climacteric fruit ripening.
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Affiliation(s)
- Su-Hao Cao
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhi-Hua Guo
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Hong Liu
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Guo-Ming Wang
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Kai-Jie Qi
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Ze-Wen Wang
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Rui-Ping Tian
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Shou-Feng Sha
- Insitute of Pomology, Liaoning Academy of Agricultural Sciences, Yingkou 115009, China
| | - Shao-Ling Zhang
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Gu
- Jiangsu Engineering Research Center for Pear, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China
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Jin Q, Wang Z, Sandhu D, Chen L, Shao C, Xie S, Shang F, Wen S, Wu T, Jin H, Huang F, Liu G, Hu J, Su Q, Huang M, Zhu Q, Zhou B, Zhu L, Peng L, Liu Z, Huang J, Tian N, Liu S. miR828a-CsMYB114 Module Negatively Regulates the Biosynthesis of Theobromine in Camellia sinensis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:4464-4475. [PMID: 38376143 DOI: 10.1021/acs.jafc.3c07736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Theobromine is an important quality component in tea plants (Camellia sinensis), which is produced from 7-methylxanthine by theobromine synthase (CsTbS), the key rate-limiting enzyme in theobromine biosynthetic pathway. Our transcriptomics and widely targeted metabolomics analyses suggested that CsMYB114 acted as a potential hub gene involved in the regulation of theobromine biosynthesis. The inhibition of CsMYB114 expression using antisense oligonucleotides (ASO) led to a 70.21% reduction of theobromine level in leaves of the tea plant, which verified the involvement of CsMYB114 in theobromine biosynthesis. Furthermore, we found that CsMYB114 was located in the nucleus of the cells and showed the characteristic of a transcription factor. The dual luciferase analysis, a yeast one-hybrid assay, and an electrophoretic mobility shift assay (EMSA) showed that CsMYB114 activated the transcription of CsTbS, through binding to CsTbS promoter. In addition, a microRNA, miR828a, was identified that directly cleaved the mRNA of CsMYB114. Therefore, we conclude that CsMYB114, as a transcription factor of CsTbS, promotes the production of theobromine, which is inhibited by miR828a through cleaving the mRNA of CsMYB114.
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Affiliation(s)
- Qifang Jin
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Zhong Wang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Devinder Sandhu
- United States Salinity Laboratory, United States Department of Agriculture, Agricultural Research Service, Riverside, California 92507, United States
| | - Lan Chen
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Chenyu Shao
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Siyi Xie
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Fanghuizi Shang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Shuai Wen
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Ting Wu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Huiying Jin
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Feiyi Huang
- Tea Research Institute, Hunan Academy of Agricultural Sciences/National Small and Medium Leaf Tea Plant Germplasm Resource Nursery, Changsha 410125, China
| | - Guizhi Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Jinyu Hu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Qin Su
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Mengdi Huang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Qian Zhu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Biao Zhou
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Lihua Zhu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Lvwen Peng
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Zhonghua Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Jianan Huang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Na Tian
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
| | - Shuoqian Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha 410127, China
- National Research Center of Engineering and Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
- CoInnovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha 410127, China
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Hu Y, Li Y, Zhu B, Huang W, Chen J, Wang F, Chen Y, Wang M, Lai H, Zhou Y. Genome-wide identification of the expansin gene family in netted melon and their transcriptional responses to fruit peel cracking. FRONTIERS IN PLANT SCIENCE 2024; 15:1332240. [PMID: 38322822 PMCID: PMC10846642 DOI: 10.3389/fpls.2024.1332240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 01/03/2024] [Indexed: 02/08/2024]
Abstract
Introduction Fruit cracking not only affects the appearance of netted melons (Cucumis melo L. var. reticulatus Naud.) but also decreases their marketability. Methods Herein, to comprehensively understand the role of expansin (EXP) proteins in netted melon, bioinformatics methods were employed to discover the EXP gene family in the melon genome and analyze its characteristic features. Furthermore, transcriptomics analysis was performed to determine the expression patterns of melon EXP (CmEXP) genes in crack-tolerant and crack-susceptible netted melon varieties. Discussion Thirty-three CmEXP genes were identified. Chromosomal location analysis revealed that CmEXP gene distribution was uneven on 12 chromosomes. In addition, phylogenetic tree analysis revealed that CmEXP genes could be categorized into four subgroups, among which the EXPA subgroup had the most members. The same subgroup members shared similar protein motifs and gene structures. Thirteen duplicate events were identified in the 33 CmEXP genes. Collinearity analysis revealed that the CmEXP genes had 50, 50, and 44 orthologous genes with EXP genes in cucumber, watermelon, and Arabidopsis, respectively. However, only nine orthologous EXP genes were observed in rice. Promoter cis-acting element analysis demonstrated that numerous cis-acting elements in the upstream promoter region of CmEXP genes participate in plant growth, development, and environmental stress responses. Transcriptomics analysis revealed 14 differentially expressed genes (DEGs) in the non-cracked fruit peels between the crack-tolerant variety 'Xizhoumi 17' (N17) and the crack-susceptible variety 'Xizhoumi 25' (N25). Among the 14 genes, 11 were upregulated, whereas the remaining three were downregulated in N17. In the non-cracked (N25) and cracked (C25) fruit peels of 'Xizhoumi 25', 24 DEGs were identified, and 4 of them were upregulated, whereas the remaining 20 were downregulated in N25. In the two datasets, only CmEXPB1 exhibited consistently upregulated expression, indicating its importance in the fruit peel crack resistance of netted melon. Transcription factor prediction revealed 56 potential transcription factors that regulate CmEXPB1 expression. Results Our study findings enrich the understanding of the CmEXP gene family and present candidate genes for the molecular breeding of fruit peel crack resistance of netted melon.
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Affiliation(s)
- Yanping Hu
- School of Tropical Agriculture and Forestry (School of Agricultural and Rural Affairs, School of Rural Revitalization), Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Haikou, China
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya, China
- The Institute of Vegetables, Hainan Academy of Agricultural Sciences, Key Laboratory of Vegetable Biology of Hainan Province, Hainan Vegetable Breeding Engineering Technology Research Center, Haikou, China
| | - Yuxin Li
- School of Tropical Agriculture and Forestry (School of Agricultural and Rural Affairs, School of Rural Revitalization), Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Haikou, China
- The Institute of Vegetables, Hainan Academy of Agricultural Sciences, Key Laboratory of Vegetable Biology of Hainan Province, Hainan Vegetable Breeding Engineering Technology Research Center, Haikou, China
| | - Baibi Zhu
- The Institute of Vegetables, Hainan Academy of Agricultural Sciences, Key Laboratory of Vegetable Biology of Hainan Province, Hainan Vegetable Breeding Engineering Technology Research Center, Haikou, China
| | - Wenfeng Huang
- The Institute of Vegetables, Hainan Academy of Agricultural Sciences, Key Laboratory of Vegetable Biology of Hainan Province, Hainan Vegetable Breeding Engineering Technology Research Center, Haikou, China
| | - Jianjun Chen
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya, China
| | - Feng Wang
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya, China
| | - Yisong Chen
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya, China
- The Institute of Vegetables, Hainan Academy of Agricultural Sciences, Key Laboratory of Vegetable Biology of Hainan Province, Hainan Vegetable Breeding Engineering Technology Research Center, Haikou, China
| | - Min Wang
- Sanya Institute, Hainan Academy of Agricultural Sciences, Sanya, China
- The Institute of Vegetables, Hainan Academy of Agricultural Sciences, Key Laboratory of Vegetable Biology of Hainan Province, Hainan Vegetable Breeding Engineering Technology Research Center, Haikou, China
| | - Hanggui Lai
- School of Tropical Agriculture and Forestry (School of Agricultural and Rural Affairs, School of Rural Revitalization), Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Haikou, China
| | - Yang Zhou
- School of Tropical Agriculture and Forestry (School of Agricultural and Rural Affairs, School of Rural Revitalization), Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, Haikou, China
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Jing W, Gong F, Liu G, Deng Y, Liu J, Yang W, Sun X, Li Y, Gao J, Zhou X, Ma N. Petal size is controlled by the MYB73/TPL/HDA19-miR159-CKX6 module regulating cytokinin catabolism in Rosa hybrida. Nat Commun 2023; 14:7106. [PMID: 37925502 PMCID: PMC10625627 DOI: 10.1038/s41467-023-42914-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 10/25/2023] [Indexed: 11/06/2023] Open
Abstract
The size of plant lateral organs is determined by well-coordinated cell proliferation and cell expansion. Here, we report that miR159, an evolutionarily conserved microRNA, plays an essential role in regulating cell division in rose (Rosa hybrida) petals by modulating cytokinin catabolism. We uncover that Cytokinin Oxidase/Dehydrogenase6 (CKX6) is a target of miR159 in petals. Knocking down miR159 levels results in the accumulation of CKX6 transcripts and earlier cytokinin clearance, leading to a shortened cell division period and smaller petals. Conversely, knocking down CKX6 causes cytokinin accumulation and a prolonged developmental cell division period, mimicking the effects of exogenous cytokinin application. MYB73, a R2R3-type MYB transcription repressor, recruits a co-repressor (TOPLESS) and a histone deacetylase (HDA19) to form a suppression complex, which regulates MIR159 expression by modulating histone H3 lysine 9 acetylation levels at the MIR159 promoter. Our work sheds light on mechanisms for ensuring the correct timing of the exit from the cell division phase and thus organ size regulation by controlling cytokinin catabolism.
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Affiliation(s)
- Weikun Jing
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
- Flower Research Institute of Yunnan Academy of Agricultural Sciences, Kunming, Yunnan, 650205, China
- School of Food and Medicine, Shenzhen Polytechnic, Shenzhen, Guangdong, 518055, China
| | - Feifei Gong
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Guoqin Liu
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450002, China
| | - Yinglong Deng
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Jiaqi Liu
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Wenjing Yang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xiaoming Sun
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yonghong Li
- School of Food and Medicine, Shenzhen Polytechnic, Shenzhen, Guangdong, 518055, China
| | - Junping Gao
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xiaofeng Zhou
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China.
| | - Nan Ma
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing, 100193, China.
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Wei W, Yang YY, Chen JY, Lakshmanan P, Kuang JF, Lu WJ, Shan W. MaNAC029 modulates ethylene biosynthesis and fruit quality and undergoes MaXB3-mediated proteasomal degradation during banana ripening. J Adv Res 2023; 53:33-47. [PMID: 36529351 PMCID: PMC10658243 DOI: 10.1016/j.jare.2022.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 10/12/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTIONS Ethylene regulates ripening by activating various metabolic pathways that controlcolor, aroma, flavor, texture, and consequently, the quality of fruits. However, the modulation of ethylene biosynthesis and quality formation during banana fruit ripening remains unclear. OBJECTIVES The present study aimed to identify the regulatory module that regulates ethylene and fruit quality-related metabolisms during banana fruit ripening. METHODS We used RNA-seq to compare unripe and ripe banana fruits and identified a ripening-induced NAC transcription factor, MaNAC029. We further performed DNA affinity purification sequencing to identify the MaNAC029's target genes involved in ethylene biosynthesis and fruit quality formation, and electrophoretic mobility shift assay, chromatin immunoprecipitation with real-time polymerase chain reaction and dual luciferase assays to explore the underlying regulatory mechanisms. Immunoprecipitation combined with mass spectrometry, yeast two-hybrid assay, and bimolecular fluorescence complementation assay were used to screen and verify the proteins interacting with MaNAC029. Finally, the function of MaNAC029 and its interacting protein associated with ethylene biosynthesis and quality formation was verified through transient overexpression experiments in banana fruits. RESULTS The study identified a nucleus-localized, ripening-induced NAC transcription factor MaNAC029. It transcriptionally activated genes associated with ethylene biosynthesis and a variety of cellular metabolisms related to fruit quality formation (cell wall degradation, starch degradation, aroma compound synthesis, and chlorophyll catabolism) by directly modulating their promoter activity during ripening. Overexpression of MaNAC029 in banana fruits activated ethylene biosynthesis and accelerated fruit ripening and quality formation. Notably, the E3 ligase MaXB3 interacted with and ubiquitinated MaNAC029 protein, facilitating MaNAC029 proteasomal degradation. Consistent with this finding, MaXB3 overexpression attenuated MaNAC029-enhanced ethylene biosynthesis and quality formation. CONCLUSION Our findings demonstrate that a MaXB3-MaNAC029 module regulates ethylene biosynthesis and a series of cellular metabolisms related to fruit quality formation during banana ripening. These results expand the understanding of the transcriptional and post-translational mechanisms of fruit ripening and quality formation.
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Affiliation(s)
- Wei Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Ying-Ying Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Jian-Ye Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Prakash Lakshmanan
- Sugarcane Research Institute, Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing 400716, China; Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St Lucia 4067, QLD, Australia
| | - Jian-Fei Kuang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Wang-Jin Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Wei Shan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China.
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Wang Y, Ma L, Ma Y, Tian T, Zhang J, Wang H, Liu Z, Chen Q, He W, Lin Y, Zhang Y, Li M, Yang S, Zhang Y, Luo Y, Tang H, Wang X. Comparative physiological and transcriptomic analyses provide insights into fruit softening in Chinese cherry [ Cerasus pseudocerasus (Lindl.) G.Don]. FRONTIERS IN PLANT SCIENCE 2023; 14:1190061. [PMID: 37528967 PMCID: PMC10388103 DOI: 10.3389/fpls.2023.1190061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 07/03/2023] [Indexed: 08/03/2023]
Abstract
Fruit softening is a complex, genetically programmed and environmentally regulated process, which undergoes biochemical and physiological changes during fruit development. The molecular mechanisms that determine these changes in Chinese cherry [Cerasus peseudocerasus (Lindl.) G.Don] fruits are still unknown. In the present study, fruits of hard-fleshed 'Hongfei' and soft-fleshed 'Pengzhoubai' varieties of Chinese cherry were selected to illustrate the fruit softening at different developmental stages. We analyzed physiological characteristics and transcriptome profiles to identify key cell wall components and candidate genes related to fruit softening and construct the co-expression networks. The dynamic changes of cell wall components (cellulose, hemicellulose, pectin, and lignin), the degrading enzyme activities, and the microstructure were closely related to the fruit firmness during fruit softening. A total of 6,757 and 3,998 differentially expressed genes (DEGs) were screened between stages and varieties, respectively. Comprehensive functional enrichment analysis supported that cell wall metabolism and plant hormone signal transduction pathways were involved in fruit softening. The majority of structural genes were significantly increased with fruit ripening in both varieties, but mainly down-regulated in Hongfei fruits compared with Pengzhoubai, especially DEGs related to cellulose and hemicellulose metabolism. The expression levels of genes involving lignin biosynthesis were decreased with fruit ripening, while mainly up-regulated in Hongfei fruits at red stage. These obvious differences might delay the cell all degrading and loosening, and enhance the cell wall stiffing in Hongfei fruits, which maintained a higher level of fruit firmness than Pengzhoubai. Co-expressed network analysis showed that the key structural genes were correlated with plant hormone signal genes (such as abscisic acid, auxin, and jasmonic acid) and transcription factors (MADS, bHLH, MYB, ERF, NAC, and WRKY). The RNA-seq results were supported using RT-qPCR by 25 selected DEGs that involved in cell wall metabolism, hormone signal pathways and TF genes. These results provide important basis for the molecular mechanism of fruit softening in Chinese cherry.
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Affiliation(s)
- Yan Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Key Laboratory of Agricultural Bioinformatics, Ministry of Education, Chengdu, Sichuan, China
| | - Lan Ma
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Ma
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Tai Tian
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jing Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Hao Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Zhenshan Liu
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qing Chen
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Key Laboratory of Agricultural Bioinformatics, Ministry of Education, Chengdu, Sichuan, China
| | - Wen He
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Key Laboratory of Agricultural Bioinformatics, Ministry of Education, Chengdu, Sichuan, China
| | - Yuanxiu Lin
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yunting Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mengyao Li
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Shaofeng Yang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yong Zhang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ya Luo
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Haoru Tang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Xiaorong Wang
- College of Horticulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, Sichuan, China
- Key Laboratory of Agricultural Bioinformatics, Ministry of Education, Chengdu, Sichuan, China
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Ji Y, Wang A. Recent advances in epigenetic triggering of climacteric fruit ripening. PLANT PHYSIOLOGY 2023; 192:1711-1717. [PMID: 37002826 PMCID: PMC10315304 DOI: 10.1093/plphys/kiad206] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/03/2023] [Accepted: 03/18/2023] [Indexed: 06/19/2023]
Abstract
During ripening, fleshy fruits undergo irreversible changes in color, texture, sugar content, aroma, and flavor to appeal to seed-dispersal vectors. The onset of climacteric fruit ripening is accompanied by an ethylene burst. Understanding the factors triggering this ethylene burst is important for manipulating climacteric fruit ripening. Here, we review the current understanding and recent insights into the possible factors triggering climacteric fruit ripening: DNA methylation and histone modification, including methylation and acetylation. Understanding the initiation factors of fruit ripening is important for exploring and accurately regulating the mechanisms of fruit ripening. Lastly, we discuss the potential mechanisms responsible for climacteric fruit ripening.
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Affiliation(s)
- Yinglin Ji
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National and Local Joint Engineering Research Center of Northern Horticultural Facilities Design and Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National and Local Joint Engineering Research Center of Northern Horticultural Facilities Design and Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
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10
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Liu W, Wei Y, Sha S, Xu Y, Li H, Yuan H, Wang A. The mechanisms underpinning anthocyanin accumulation in a red-skinned bud sport in pear (Pyrus ussuriensis). PLANT CELL REPORTS 2023; 42:1089-1105. [PMID: 37062789 DOI: 10.1007/s00299-023-03015-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/31/2023] [Indexed: 05/12/2023]
Abstract
KEY MESSAGE In our study, we demonstrated that histone acetylation promotes anthocyanin accumulation in pears by affecting the expression of key genes. Color is an important trait of horticultural plants, and the anthocyanin content directly affects the nutritional value and commercial value of colored fruits. Therefore, it is important for fruit breeding to cultivate new varieties with bright colors. 'Nanhong' (NH) pear (Pyrus ussuriensis) is a bud sport cultivar of 'Nanguo' (NG) pear. The anthocyanin content in NH pear is significantly higher than that in NG pear, but the underlying molecular mechanism remains unclear. Here, we observed that the anthocyanin biosynthesis structural gene PuUFGT (UDP-glucose: flavonoids 3-O-glucosyltransferase) and an anthocyanin transporter gene PuGSTF6 (glutathione S-transferase) had significantly higher expression levels in NH than in NG pears during the late stages of fruit development. Meanwhile, the R2R3-MYB transcription factor PuMYB110a was also highly expressed in NH pears and could positively regulate the transcription of PuUFGT and PuGSTF6. Overexpression of PuMYB110a in pear increased the fruit anthocyanin content. In addition, despite no significant differences in methylation levels being found in the promoters of PuMYB110a, PuUFGT, and PuGSTF6 when comparing the two varieties, the histone acetylation levels of PuMYB110a were significantly higher in NH pear compared with those in NG pear. Our findings suggest a mechanism for anthocyanin accumulation in NH fruit.
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Affiliation(s)
- Weiting Liu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yun Wei
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Shoufeng Sha
- Liaoning Institute of Pomology, Xiongyue, 115009, China
| | - Yaxiu Xu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China
| | - Hongjian Li
- Liaoning Institute of Pomology, Xiongyue, 115009, China
| | - Hui Yuan
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang, 110866, China.
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11
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Gao G, Yang F, Wang C, Duan X, Li M, Ma Y, Wang F, Qi H. The transcription factor CmERFI-2 represses CmMYB44 expression to increase sucrose levels in oriental melon fruit. PLANT PHYSIOLOGY 2023; 192:1378-1395. [PMID: 36938625 PMCID: PMC10231561 DOI: 10.1093/plphys/kiad155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 06/01/2023]
Abstract
Soluble sugar accumulation in fruit ripening determines fleshy fruit quality. However, the molecular mechanism for this process is not yet understood. Here, we showed a transcriptional repressor, CmMYB44 regulates sucrose accumulation and ethylene synthesis in oriental melon (Cucumis. melo var. makuwa Makino) fruit. Overexpressing CmMYB44 suppressed sucrose accumulation and ethylene production. Furthermore, CmMYB44 repressed the transcriptional activation of CmSPS1 (sucrose phosphate synthase 1) and CmACO1 (ACC oxidase 1), two key genes in sucrose and ethylene accumulation, respectively. During the later stages of fruit ripening, the repressive effect of CmMYB44 on CmSPS1 and CmACO1 could be released by overexpressing CmERFI-2 (ethylene response factor I-2) and exogenous ethylene in "HS" fruit (high sucrose accumulation fruit). CmERFI-2 acted upstream of CmMYB44 as a repressor by directly binding the CmMYB44 promoter region, indirectly stimulating the expression level of CmSPS1 and CmACO1. Taken together, we provided a molecular regulatory pathway mediated by CmMYB44, which determines the degree of sucrose and ethylene accumulation in oriental melon fruit and sheds light on transcriptional responses triggered by ethylene sensing that enable the process of fruit ripening.
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Affiliation(s)
- Ge Gao
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Fan Yang
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Cheng Wang
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Xiaoyu Duan
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Meng Li
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
| | - Yue Ma
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Feng Wang
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Hongyan Qi
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Key Laboratory of Protected Horticulture of Education of Ministry and Liaoning Province/National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology, Shenyang 110866, China
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Wei W, Yang YY, Lakshmanan P, Kuang JF, Lu WJ, Pang XQ, Chen JY, Shan W. Proteasomal degradation of MaMYB60 mediated by the E3 ligase MaBAH1 causes high temperature-induced repression of chlorophyll catabolism and green ripening in banana. THE PLANT CELL 2023; 35:1408-1428. [PMID: 36748200 PMCID: PMC10118274 DOI: 10.1093/plcell/koad030] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Banana (Musa acuminata) fruits ripening at 30 °C or above fail to develop yellow peels; this phenomenon, called green ripening, greatly reduces their marketability. The regulatory mechanism underpinning high temperature-induced green ripening remains unknown. Here we decoded a transcriptional and post-translational regulatory module that causes green ripening in banana. Banana fruits ripening at 30 °C showed greatly reduced expression of 5 chlorophyll catabolic genes (CCGs), MaNYC1 (NONYELLOW COLORING 1), MaPPH (PHEOPHYTINASE), MaTIC55 (TRANSLOCON AT THE INNER ENVELOPE MEMBRANE OF CHLOROPLASTS 55), MaSGR1 (STAY-GREEN 1), and MaSGR2 (STAY-GREEN 2), compared to those ripening at 20 °C. We identified a MYB transcription factor, MaMYB60, that activated the expression of all 5 CCGs by directly binding to their promoters during banana ripening at 20 °C, while showing a weaker activation at 30 °C. At high temperatures, MaMYB60 was degraded. We discovered a RING-type E3 ligase MaBAH1 (benzoic acid hypersensitive 1) that ubiquitinated MaMYB60 during green ripening and targeted it for proteasomal degradation. MaBAH1 thus facilitated MaMYB60 degradation and attenuated MaMYB60-induced transactivation of CCGs and chlorophyll degradation. By contrast, MaMYB60 upregulation increased CCG expression, accelerated chlorophyll degradation, and mitigated green ripening. Collectively, our findings unravel a dynamic, temperature-responsive MaBAH1-MaMYB60-CCG module that regulates chlorophyll catabolism, and the molecular mechanism underpinning green ripening in banana. This study also advances our understanding of plant responses to high-temperature stress.
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Affiliation(s)
- Wei Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Ying-ying Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Prakash Lakshmanan
- Sugarcane Research Institute, Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Guangxi Academy of Agricultural Sciences, Nanning 530007, China
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, Southwest University, Chongqing 400716, China
- Queensland Alliance for Agriculture and Food Innovation, University of Queensland, St Lucia, QLD 4067, Australia
| | - Jian-fei Kuang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Wang-jin Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Xue-qun Pang
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Jian-ye Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Wei Shan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education, College of Horticulture, South China Agricultural University, Guangzhou 510642, China
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Xu Y, Liu Z, Lv T, Wei Y, Liu W, Wei Y, Yang G, Liu L, Li T, Wang A. Exogenous Ca2+ promotes transcription factor phosphorylation to suppress ethylene biosynthesis in apple. PLANT PHYSIOLOGY 2023; 191:2475-2488. [PMID: 36653326 PMCID: PMC10069878 DOI: 10.1093/plphys/kiad022] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/29/2022] [Accepted: 12/09/2022] [Indexed: 05/26/2023]
Abstract
Ethylene biosynthesis in apple (Malus domestica) fruit can be suppressed by calcium ions (Ca2+) during storage; however, the underlying mechanisms are unclear. In this study, we identified the apple transcription factor MCM1-AGAMOUS-DEFICIENS-SRF5 (MdMADS5), which functions as a transcriptional activator of the ethylene biosynthesis-related gene 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID SYNTHASE1 (MdACS1), a partner of the calcium sensor CALCIUM-DEPENDENT PROTEIN KINASES7 (MdCDPK7). Ca2+ promoted the MdCDPK7-mediated phosphorylation of MdMADS5, which resulted in the degradation of MdMADS5 via the 26S proteasome pathway. MdCDPK7 also phosphorylated 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID OXIDASE1 (MdACO1), the key enzyme in ethylene biosynthesis, leading to MdACO1 degradation and inhibition of ethylene biosynthesis. Our results reveal that Ca2+/MdCDPK7-MdMADS5 and Ca2+/MdCDPK7-MdACO1 are involved in Ca2+-suppressed ethylene biosynthesis, which delays apple fruit ripening. These findings provide insights into fruit ripening, which may lead to the development of strategies for extending the shelf life of fruit.
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Affiliation(s)
- Yaxiu Xu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Zhi Liu
- Liaoning Institute of Pomology, Xiongyue 115009, China
| | - Tianxing Lv
- Liaoning Institute of Pomology, Xiongyue 115009, China
| | - Yun Wei
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Weiting Liu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Yajing Wei
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Guangxin Yang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Li Liu
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Tong Li
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology (Liaoning Province), Key Laboratory of Protected Horticulture (Ministry of Education), National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
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Li X, Cheng Y, Wang Y, Yang X, Wei C, Guan J. Ethylene Signal Is Involved in the Regulation of Anthocyanin Accumulation in Flesh of Postharvest Plums ( Prunus salicina Lindl.). PLANTS (BASEL, SWITZERLAND) 2023; 12:893. [PMID: 36840243 PMCID: PMC9963230 DOI: 10.3390/plants12040893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 02/11/2023] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Ethylene is positively correlated with the anthocyanin accumulation in postharvest plum fruit, but the regulation mechanism has not been fully clarified. In this work, the 'Friar' plum fruit under different storage temperatures (0, 10 and 25 °C) and treatments (100.0 μL L-1 ethylene and 1.0 μL L-1 1-MCP) were applied to study the relationship between anthocyanin accumulation and ethylene signal pathway. The fruits stored at 10 °C had higher ethylene production rate and more anthocyanin in flesh than those stored at 0 °C and 25 °C. Ten ethylene biosynthesis associated genes and forty-one ethylene signal transduction related genes were obtained from the previous transcriptome data. Among them, the expression levels of ethylene biosynthesis associated genes (PsACS1, PsACS4 and PsACO1), and ethylene signal transduction related genes (PsERS1s, PsETR2, PsERF1a, and PsERF12) were markedly higher in the fruits stored at 10 °C than those at 0 °C and 25 °C. Exogenous ethylene treatment enhanced while 1-MCP treatment inhibited the anthocyanin accumulation in the flesh under storage at 10 °C. In addition, exogenous ethylene treatment markedly increased the expression levels of PsACS1, PsACS4, PsACO1, PsETR2, PsERF1a, and PsERF12 in the flesh once it turning red, as well as the anthocyanin biosynthesis related genes (PsPAL, PsCHS, PsF3H, PsDRF, PsANS, PsUFGT and PsMYB10), whereas 1-MCP treatment manifested the contrary effects. Correlation analysis indicated that there was a significant positive correlation between genes expression related to ethylene signal pathway and anthocyanin biosynthesis, except for PsERF11. In conclusion, ethylene signal pathway is involved in the flesh reddening by up-regulating the anthocyanin biosynthesis related genes.
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Affiliation(s)
- Xueling Li
- Institute of Biotechnology and Food Sciences, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
- Plant Genetic Engineering Center of Hebei Province, Shijiazhuang 050051, China
| | - Yudou Cheng
- Institute of Biotechnology and Food Sciences, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
- Plant Genetic Engineering Center of Hebei Province, Shijiazhuang 050051, China
| | - Ying Wang
- Institute of Biotechnology and Food Sciences, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
- Plant Genetic Engineering Center of Hebei Province, Shijiazhuang 050051, China
| | - Xiaohe Yang
- Institute of Biotechnology and Food Sciences, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
- Plant Genetic Engineering Center of Hebei Province, Shijiazhuang 050051, China
| | - Chuangqi Wei
- Institute of Biotechnology and Food Sciences, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
- Plant Genetic Engineering Center of Hebei Province, Shijiazhuang 050051, China
| | - Junfeng Guan
- Institute of Biotechnology and Food Sciences, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China
- Plant Genetic Engineering Center of Hebei Province, Shijiazhuang 050051, China
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15
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Yu D, Wei W, Fan Z, Chen J, You Y, Huang W, Zhan J. VabHLH137 promotes proanthocyanidin and anthocyanin biosynthesis and enhances resistance to Colletotrichum gloeosporioides in grapevine. HORTICULTURE RESEARCH 2023; 10:uhac261. [PMID: 36778186 PMCID: PMC9907051 DOI: 10.1093/hr/uhac261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/20/2022] [Indexed: 06/18/2023]
Abstract
Proanthocyanidins (PAs) and anthocyanins are involved in the response of plants to various environmental stresses. However, the mechanism behind defense-induced PA biosynthetic regulation is still not completely elucidated, also in grapevine. This study performed a transcriptome sequencing analysis of grape berries infected with Colletotrichum gloeosporioides to highlight the induction of the VabHLH137 factor from the basic helix-loop-helix (bHLH) XII subfamily by the fungus, which appeared to be significantly co-expressed with PA-related genes. The functional analysis of VabHLH137 overexpression and knockdown in transgenic grape calli showed that it positively regulated PA and anthocyanin biosynthesis. Moreover, VabHLH137 overexpression in the grape calli significantly increased resistance to C. gloeosporioides. A yeast one-hybrid and electrophoretic mobility shift assay revealed that VabHLH137 directly bound to the VaLAR2 promoter, enhancing its activity and interacting with VaMYBPAR, a transcriptional activator of PA biosynthesis. Furthermore, transient experiments showed that although the VabHLH137 + VaMYBPAR complex activated VaLAR2 expression, it failed to further enhance VaLAR2 expression compared to VaMYBPAR alone. The findings indicated that VabHLH137 enhanced PA biosynthesis by activating of VaLAR2 expression, providing new insight into the transcriptional regulation of defense-induced PA biosynthesis in grapevine.
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Affiliation(s)
- Dan Yu
- Beijing Key Laboratory of Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100085, China
| | - Wei Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Zhongqi Fan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Jianye Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables, College of Horticulture, South China Agricultural University, Guangzhou, 510642, China
| | - Yilin You
- Beijing Key Laboratory of Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100085, China
| | - Weidong Huang
- Beijing Key Laboratory of Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100085, China
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16
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Tian Q, Xu M, Wu D, Wang C, Wang X, Che Q, Li Z, Xu X. Integrated transgene and transcriptome reveal the molecular basis of MdWRKY87 positively regulate adventitious rooting in apple rootstock. FRONTIERS IN PLANT SCIENCE 2023; 14:1136616. [PMID: 36778677 PMCID: PMC9909196 DOI: 10.3389/fpls.2023.1136616] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
For most fruit and forest species vegetative propagated from elite genotypes, adventitious rooting is essential. The ability to form adventitious roots significantly decreased during the juvenile to adult phase change. Apart from the miR156-SPL pathway, whether there is another regulation mechanism controlling age-dependent adventitious rooting ability remained largely unknown. In the present study, we showed that MdWRKY87 expression level was positively correlation with adventitious rooting ability. In addition, over-expressing of MdWRKY87 in tobacco leads to enhanced adventitious rooting ability, more adventitious root number and accelerated adventitious rooting process. Comparative transcriptome profiling indicated that MdWRKY87 overexpression can activate the expression of adventitious rooting-induced genes, such as WOX11 and AIL. In addition, MdWRKY87 overexpression can inhibit the transcription of adventitious rooting-repressed genes, such as AUX/IAAs and type-B cytokinin RRs. Collectively, here we demonstrated that higher expression level of MdWRKY87 contributes to age-dependent adventitious rooting-competent in juvenile apple rootstock.
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Affiliation(s)
- Qiuye Tian
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Mengli Xu
- Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province, Qingdao Agricultural University, Qingdao, China
| | - Dongchen Wu
- Laboratory of Quality & Safety Risk Assessment for Fruit (Qingdao), Ministry of Agriculture and Rural Affairs, Qingdao Agricultural University, Qingdao, China
| | - Chaoping Wang
- Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xianlin Wang
- Weihai Yingjuval Nursery Limited Company, Weihai International Port Economic and Technological Develepment District, Weihai, Shandong, China
| | - Qinqin Che
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
| | - Zhengnan Li
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot, China
| | - Xiaozhao Xu
- College of Horticulture, Qingdao Agricultural University, Qingdao, China
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17
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Li K, Li Y, Wang Y, Li Y, He J, Li Y, Du L, Gao Y, Ma N, Gao J, Zhou X. Disruption of transcription factor RhMYB123 causes the transformation of stamen to malformed petal in rose (Rosa hybrida). PLANT CELL REPORTS 2022; 41:2293-2303. [PMID: 35999377 DOI: 10.1007/s00299-022-02921-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/25/2022] [Indexed: 06/15/2023]
Abstract
We find that the R2R3 MYB transcription factor RhMYB123 has a novel function to regulate stamen-petal organ specification in rose. Rose is one of the ornamental plants with economic importance worldwide. Malformed flower seriously affects the ornamental value and fertility of rose. However, the regulatory mechanism is largely unknown. In this work, we identified a R2R3 MYB transcription factor RhMYB123 from rose, the expression of which significantly decreased from flower differentiation stage to floral organ development stage. Phylogenetic analysis indicated that it belongs to the same subgroup as MYB123 of Arabidopsis and located in nucleus. In addition, RhMYB123 was confirmed to have transcriptional activation function by dual luciferase assay. Silencing RhMYB123 using Virus-Induced Gene Silencing (VIGS) in rose could increase the number of malformed petaloid stamen. Furthermore, we identified 549 differential expressed genes (DEGs) in TRV-RhMYB123 lines compared to TRV controls by RNA-seq of floral buds (flower differentiation stage). Among of those genes, expression of 3 MADS box family genes related to floral organ development reduced in TRV-RhMYB123 lines, including AGAMOUS (RhAG), AGAMOUS LIKE 15 (RhAGL15), and SHATTERPROOF 1 (RhSHP1). Given, previous studies have shown that auxin plays a crucial role in floral meristem initiation and stamen-petal organ specification. We also found 6 DEGs were involved in auxin signal transduction, of which five were reduced expression in TRV-RhMYB123. Taken together, our findings suggested that RhMYB123 may govern the development of malformed petaloid stamen by regulating the expressions of some MADS box family members and auxin signaling pathway elements.
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Affiliation(s)
- Kun Li
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yuqi Li
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yi Wang
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yonghong Li
- School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen, China
| | - Junna He
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Yunju Li
- Yunnan Yuntianhua Modern Agriculture Development Co., Ltd, Kunming, China
| | - Lisi Du
- Yunnan Yuntianhua Modern Agriculture Development Co., Ltd, Kunming, China
| | - Yuerong Gao
- College of Plant Science and Technology, Beijing University of Agriculture, Beijing, China
| | - Nan Ma
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Junping Gao
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China
| | - Xiaofeng Zhou
- Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, China Agricultural University, Beijing, China.
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18
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Wu Y, Li X, Zhang J, Zhao H, Tan S, Xu W, Pan J, Yang F, Pi E. ERF subfamily transcription factors and their function in plant responses to abiotic stresses. FRONTIERS IN PLANT SCIENCE 2022; 13:1042084. [PMID: 36531407 PMCID: PMC9748296 DOI: 10.3389/fpls.2022.1042084] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 11/09/2022] [Indexed: 06/09/2023]
Abstract
Ethylene Responsive Factor (ERF) subfamily comprise the largest number of proteins in the plant AP2/ERF superfamily, and have been most extensively studied on the biological functions. Members of this subfamily have been proven to regulate plant resistances to various abiotic stresses, such as drought, salinity, chilling and some other adversities. Under these stresses, ERFs are usually activated by mitogen-activated protein kinase induced phosphorylation or escape from ubiquitin-ligase enzymes, and then form complex with nucleic proteins before binding to cis-element in promoter regions of stress responsive genes. In this review, we will discuss the phylogenetic relationships among the ERF subfamily proteins, summarize molecular mechanism how the transcriptional activity of ERFs been regulated and how ERFs of different subgroup regulate the transcription of stress responsive genes, such as high-affinity K+ transporter gene PalHKT1;2, reactive oxygen species related genes LcLTP, LcPrx, and LcRP, flavonoids synthesis related genes FtF3H and LhMYBSPLATTER, etc. Though increasing researches demonstrate that ERFs are involved in various abiotic stresses, very few interact proteins and target genes of them have been comprehensively annotated. Hence, future research prospects are described on the mechanisms of how stress signals been transited to ERFs and how ERFs regulate the transcriptional expression of stress responsive genes.
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19
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Xu Y, Miao Y, Cai B, Yi Q, Tian X, Wang Q, Ma D, Luo Q, Tan F, Hu Y. A histone deacetylase inhibitor enhances rice immunity by derepressing the expression of defense-related genes. FRONTIERS IN PLANT SCIENCE 2022; 13:1041095. [PMID: 36407628 PMCID: PMC9667192 DOI: 10.3389/fpls.2022.1041095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Histone deacetylase (HDAC) inhibitors (HDACis) have been widely used in plants to investigate the role of histone acetylation, particularly the function of HDACs, in the regulation of development and stress response. However, how histone acetylation is involved in rice (Oryza sativa L.) disease resistance has hardly been studied. In this paper, four HDACis including Sodium butyrate (NaBT), Suberoylanilide Hydroxamic Acid (SAHA), LBH-589 and Trichostatin A (TSA) were used to treat rice seedlings at different concentrations before inoculation of Magnaporthe oryzae. We found that only 10mM NaBT treatment can significantly enhanced rice blast resistance. However, treatment of the four HDACis all increased global histone acetylation but at different sites, suggesting that the inhibition selectivity of these HDACis is different. Notably, the global H3K9ac level was dramatically elevated after both NaBT and LBH589 treatment although LBH589 could not enhance rice blast resistance. This indicates that the HDACs they inhibit target different genes. In accordance with the phenotype, transcriptomic analysis showed that many defense-related genes were up-regulated by NaBT treatment. Up-regulation of the four genes bsr-d1, PR10B, OsNAC4, OsKS4 were confirmed by RT-qPCR. ChIP-qPCR results revealed that H3K9ac level on these genes was increased after NaBT treatment, suggesting that these defense-related genes were repressed by HDACs. In addition, by promoter motif analysis of the genes that induced by both NaBT treatment and rice blast infection, we found that the motifs bound by ERF and AHL transcription factors (TFs) were the most abundant, which demonstrates that ERF and AHL proteins may act as the candidate TFs that recruit HDACs to defense-related genes to repress their expression when plants are not infected by rice blast.
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Affiliation(s)
- Yan Xu
- Hubei Engineering Research Center for Specialty Flowers Biological Breeding/College of Bioengineering, Jingchu University of Technology, Jingmen, China
| | - Yuanxin Miao
- Hubei Engineering Research Center for Specialty Flowers Biological Breeding/College of Bioengineering, Jingchu University of Technology, Jingmen, China
| | - Botao Cai
- Center for Science Popularization Jingmen, Science and Technology Museum, Jingmen, China
| | - Qingping Yi
- Hubei Engineering Research Center for Specialty Flowers Biological Breeding/College of Bioengineering, Jingchu University of Technology, Jingmen, China
| | - Xuejun Tian
- Hubei Engineering Research Center for Specialty Flowers Biological Breeding/College of Bioengineering, Jingchu University of Technology, Jingmen, China
| | - Qihai Wang
- Hubei Engineering Research Center for Specialty Flowers Biological Breeding/College of Bioengineering, Jingchu University of Technology, Jingmen, China
| | - Dan Ma
- Hubei Engineering Research Center for Specialty Flowers Biological Breeding/College of Bioengineering, Jingchu University of Technology, Jingmen, China
| | - Qiong Luo
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan/Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Yunnan Agricultural University, Kunming, China
| | - Feng Tan
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Yongfeng Hu
- Key Laboratory of Three Gorges Regional Plant Genetics and Germplasm Enhancement, Biotechnology Research Center, China Three Gorges University, Yichang, China
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20
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Cui Y, Zhai Y, He J, Song M, Flaishman MA, Ma H. AP2/ERF genes associated with superfast fig ( Ficus carica L.) fruit ripening. FRONTIERS IN PLANT SCIENCE 2022; 13:1040796. [PMID: 36388580 PMCID: PMC9659990 DOI: 10.3389/fpls.2022.1040796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
Fig fruits have significant health value and are culturally important. Under suitable climatic conditions, fig fruits undergo a superfast ripening process, nearly doubling in size, weight, and sugar content over three days in parallel with a sharp decrease in firmness. In this study, 119 FcAP2/ERF genes were identified in the fig genome, namely 95 ERFs, 20 AP2s, three RAVs, and one soloist. Most of the ERF subfamily members (76) contained no introns, whereas the majority of the AP2 subfamily members had at least two introns each. Three previously published transcriptome datasets were mined to discover expression patterns, encompassing the fruit peel and flesh of the 'Purple Peel' cultivar at six developmental stages; the fruit receptacle and flesh of the 'Brown Turkey' cultivar after ethephon treatment; and the receptacle and flesh of parthenocarpic and pollinated fruits of the 'Brown Turkey' cultivar. Eighty-three FcAP2/ERFs (68 ERFs, 13 AP2s, one RAV, and one soloist) were expressed in the combined transcriptome dataset. Most FcAP2/ERFs were significantly downregulated (|log2(fold change) | ≥ 1 and p-adjust < 0.05) during both normal fruit development and ethephon-induced accelerated ripening, suggesting a repressive role of these genes in fruit ripening. Five significantly downregulated ERFs also had repression domains in the C-terminal. Seven FcAP2/ERFs were identified as differentially expressed during ripening in all three transcriptome datasets. These genes were strong candidates for future functional genetic studies to elucidate the major FcAP2/ERF regulators of the superfast fig fruit ripening process.
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Affiliation(s)
- Yuanyuan Cui
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
- Peking University Institute of Advanced Agricultural Science, Shandong Laboratory for Advanced Agricultural Sciences, Weifang, China
| | - Yanlei Zhai
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
| | - Jiajun He
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
| | - Miaoyu Song
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
| | - Moshe A. Flaishman
- Department of Fruit Tree Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| | - Huiqin Ma
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, China
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21
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Cheng YZ, He GQ, Yang SD, Ma SH, Ma JP, Shang FHZ, Li XF, Jin HY, Guo DL. Genome-wide identification and expression analysis of JmjC domain-containing genes in grape under MTA treatment. Funct Integr Genomics 2022; 22:783-795. [PMID: 35854188 DOI: 10.1007/s10142-022-00885-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/08/2022] [Accepted: 07/11/2022] [Indexed: 12/31/2022]
Abstract
Histone demethylases containing the JmjC domain play an extremely important role in maintaining the homeostasis of histone methylation and are closely related to plant growth and development. Currently, the JmjC domain-containing proteins have been reported in many species; however, they have not been systematically studied in grapes. In this paper, 21 VviJMJ gene family members were identified from the whole grape genome, and the VviJMJ genes were classified into five subfamilies: KDM3, KDM4, KDM5, JMJD6, and JMJ-only based on the phylogenetic relationship and structural features of Arabidopsis and grape. After that, the conserved sites of VviJMJ genes were revealed by protein sequence analysis. In addition, chromosomal localization and gene structure analysis revealed the heterogeneous distribution of VviJMJ genes on grape chromosomes and the structural features of VviJMJ genes, respectively. Analysis of promoter cis-acting elements demonstrated numerous hormone, light, and stress response elements in the promoter region of the VviJMJ genes. Subsequently, the grape fruit was treated with MTA (an H3K4 methylation inhibitor), which significantly resulted in the early ripening of grape fruits. The qRT-PCR analysis showed that VviJMJ genes (except VviJMJ13c) had different expression patterns during grape fruit development. The expression of VviJMJ genes in the treatment group was significantly higher than that in the control group. The results indicate that VviJMJ genes are closely related to grape fruit ripening.
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Affiliation(s)
- Yi-Zhe Cheng
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Guang-Qi He
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Sheng-Di Yang
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Shuai-Hui Ma
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Jin-Ping Ma
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Fang-Hui-Zi Shang
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Xu-Fei Li
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Hui-Ying Jin
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China.,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China
| | - Da-Long Guo
- College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang, 471023, China. .,Henan Engineering Technology Research Center of Quality Regulation of Horticultural Plants, Luoyang, 471023, China.
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22
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Cai Y, Xu M, Liu J, Zeng H, Song J, Sun B, Chen S, Deng Q, Lei J, Cao B, Chen C, Chen M, Chen K, Chen G, Zhu Z. Genome-wide analysis of histone acetyltransferase and histone deacetylase families and their expression in fruit development and ripening stage of pepper ( Capsicum annuum). FRONTIERS IN PLANT SCIENCE 2022; 13:971230. [PMID: 36161016 PMCID: PMC9490122 DOI: 10.3389/fpls.2022.971230] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/09/2022] [Indexed: 06/16/2023]
Abstract
The fruit development and ripening process involve a series of changes regulated by fine-tune gene expression at the transcriptional level. Acetylation levels of histones on lysine residues are dynamically regulated by histone acetyltransferases (HATs) and histone deacetylases (HDACs), which play an essential role in the control of gene expression. However, their role in regulating fruit development and ripening process, especially in pepper (Capsicum annuum), a typical non-climacteric fruit, remains to understand. Herein, we performed genome-wide analyses of the HDAC and HAT family in the pepper, including phylogenetic analysis, gene structure, encoding protein conserved domain, and expression assays. A total of 30 HAT and 15 HDAC were identified from the pepper genome and the number of gene differentiation among species. The sequence and phylogenetic analysis of CaHDACs and CaHATs compared with other plant HDAC and HAT proteins revealed gene conserved and potential genus-specialized genes. Furthermore, fruit developmental trajectory expression profiles showed that CaHDAC and CaHAT genes were differentially expressed, suggesting that some are functionally divergent. The integrative analysis allowed us to propose CaHDAC and CaHAT candidates to be regulating fruit development and ripening-related phytohormone metabolism and signaling, which also accompanied capsaicinoid and carotenoid biosynthesis. This study provides new insights into the role of histone modification mediate development and ripening in non-climacteric fruits.
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Affiliation(s)
- Yutong Cai
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Mengwei Xu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Jiarong Liu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Haiyue Zeng
- Peking University Institute of Advanced Agricultural Sciences, Weifang, China
- School of Advanced Agricultural Sciences, Peking University, Beijing, China
| | - Jiali Song
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Binmei Sun
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Siqi Chen
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Qihui Deng
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Jianjun Lei
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Bihao Cao
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Changming Chen
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Muxi Chen
- Guangdong Helinong Seeds Co., Ltd., Shantou, China
| | - Kunhao Chen
- Guangdong Helinong Seeds Co., Ltd., Shantou, China
| | - Guoju Chen
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
| | - Zhangsheng Zhu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Areas, College of Horticulture, South China Agricultural University, Guangzhou, China
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Li Z, Wang J, Fu Y, Jing Y, Huang B, Chen Y, Wang Q, Wang XB, Meng C, Yang Q, Xu L. The Musa troglodytarum L. genome provides insights into the mechanism of non-climacteric behaviour and enrichment of carotenoids. BMC Biol 2022; 20:186. [PMID: 36002843 PMCID: PMC9400310 DOI: 10.1186/s12915-022-01391-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 08/15/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Karat (Musa troglodytarum L.) is an autotriploid Fe'i banana of the Australimusa section. Karat was domesticated independently in the Pacific region, and karat fruit are characterized by a pink sap, a deep yellow-orange flesh colour, and an abundance of β-carotene. Karat fruit showed non-climacteric behaviour, with an approximately 215-day bunch filling time. These features make karat a valuable genetic resource for studying the mechanisms underlying fruit development and ripening and carotenoid biosynthesis. RESULTS Here, we report the genome of M. troglodytarum, which has a total length of 603 Mb and contains 37,577 predicted protein-coding genes. After divergence from the most recent common ancestors, M. troglodytarum (T genome) has experienced fusion of ancestral chromosomes 8 and 9 and multiple translocations and inversions, unlike the high synteny with few rearrangements found among M. schizocarpa (S genome), M. acuminata (A genome) and M. balbisiana (B genome). Genome microsynteny analysis showed that the triplication of MtSSUIIs due to chromosome rearrangement may lead to the accumulation of carotenoids and ABA in the fruit. The expression of duplicated MtCCD4s is repressed during ripening, leading to the accumulation of α-carotene, β-carotene and phytoene. Due to a long terminal repeat (LTR)-like fragment insertion upstream of MtERF11, karat cannot produce large amounts of ethylene but can produce ABA during ripening. These lead to non-climacteric behaviour and prolonged shelf-life, which contributes to an enrichment of carotenoids and riboflavin. CONCLUSIONS The high-quality genome of M. troglodytarum revealed the genomic basis of non-climacteric behaviour and enrichment of carotenoids, riboflavin, flavonoids and free galactose and provides valuable resources for further research on banana domestication and breeding and the improvement of nutritional and bioactive qualities.
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Affiliation(s)
- Zhiying Li
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Jiabin Wang
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Yunliu Fu
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Yonglin Jing
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Bilan Huang
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Ying Chen
- grid.428986.90000 0001 0373 6302College of Horticulture and Landscape Architecture, Hainan University, Haikou, 570228 China
| | - Qinglong Wang
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China
| | - Xiao Bing Wang
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Chunyang Meng
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Qingquan Yang
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
| | - Li Xu
- grid.453499.60000 0000 9835 1415Institute of Tropical Crop Genetic Resources, Chinese Academy of Tropical Agricultural Sciences, Danzhou, 571737 Hainan China ,Ministry of Agriculture Key Laboratory of Crop Gene Resources and Germplasm Enhancement in Southern China, Danzhou, 571737 Hainan China ,Hainan Province Key Laboratory of Tropical Crops Germplasm Resources Genetic Improvement and Innovation, Danzhou, 571737 Hainan China ,National Gene Bank of Tropical Crops, Danzhou, 571700 Hainan China
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24
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Li S, Wu P, Yu X, Cao J, Chen X, Gao L, Chen K, Grierson D. Contrasting Roles of Ethylene Response Factors in Pathogen Response and Ripening in Fleshy Fruit. Cells 2022; 11:cells11162484. [PMID: 36010560 PMCID: PMC9406635 DOI: 10.3390/cells11162484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/01/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Fleshy fruits are generally hard and unpalatable when unripe; however, as they mature, their quality is transformed by the complex and dynamic genetic and biochemical process of ripening, which affects all cell compartments. Ripening fruits are enriched with nutrients such as acids, sugars, vitamins, attractive volatiles and pigments and develop a pleasant taste and texture and become attractive to eat. Ripening also increases sensitivity to pathogens, and this presents a crucial problem for fruit postharvest transport and storage: how to enhance pathogen resistance while maintaining ripening quality. Fruit development and ripening involve many changes in gene expression regulated by transcription factors (TFs), some of which respond to hormones such as auxin, abscisic acid (ABA) and ethylene. Ethylene response factor (ERF) TFs regulate both fruit ripening and resistance to pathogen stresses. Different ERFs regulate fruit ripening and/or pathogen responses in both fleshy climacteric and non-climacteric fruits and function cooperatively or independently of other TFs. In this review, we summarize the current status of studies on ERFs that regulate fruit ripening and responses to infection by several fungal pathogens, including a systematic ERF transcriptome analysis of fungal grey mould infection of tomato caused by Botrytis cinerea. This deepening understanding of the function of ERFs in fruit ripening and pathogen responses may identify novel approaches for engineering transcriptional regulation to improve fruit quality and pathogen resistance.
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Affiliation(s)
- Shan Li
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- Correspondence: (S.L.); (D.G.)
| | - Pan Wu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Xiaofen Yu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Jinping Cao
- College of Agriculture and Biotechnology, Zhejiang University, Zijinggang Campus, Hangzhou 310058, China
| | - Xia Chen
- College of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Lei Gao
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Kunsong Chen
- College of Agriculture and Biotechnology, Zhejiang University, Zijinggang Campus, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Horticultural Plant Integrative Biology, Zhejiang University, Zijinggang Campus, Hangzhou 310058, China
| | - Donald Grierson
- College of Agriculture and Biotechnology, Zhejiang University, Zijinggang Campus, Hangzhou 310058, China
- Plant and Crop Sciences Division, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- Correspondence: (S.L.); (D.G.)
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25
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Zafari S, Vanlerberghe GC, Igamberdiev AU. The Role of Alternative Oxidase in the Interplay between Nitric Oxide, Reactive Oxygen Species, and Ethylene in Tobacco ( Nicotiana tabacum L.) Plants Incubated under Normoxic and Hypoxic Conditions. Int J Mol Sci 2022; 23:7153. [PMID: 35806157 PMCID: PMC9266549 DOI: 10.3390/ijms23137153] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 06/24/2022] [Indexed: 02/05/2023] Open
Abstract
The transgenic tobacco (Nicotiana tabacum L.) plants with the modified levels of alternative oxidase (AOX) were used to evaluate the physiological roles of AOX in regulating nitro-oxidative stress and metabolic changes after exposing plants to hypoxia for 6 h. Under normoxia, AOX expression resulted in the decrease of nitric oxide (NO) levels and of the rate of protein S-nitrosylation, while under hypoxia, AOX overexpressors exhibited higher NO and S-nitrosylation levels than knockdowns. AOX expression was essential in avoiding hypoxia-induced superoxide and H2O2 levels, and this was achieved via higher activities of catalase and glutathione reductase and the reduced expression of respiratory burst oxidase homolog (Rboh) in overexpressors as compared to knockdowns. The AOX overexpressing lines accumulated less pyruvate and exhibited the increased transcript and activity levels of pyruvate decarboxylase and alcohol dehydrogenase under hypoxia. This suggests that AOX contributes to the energy state of hypoxic tissues by stimulating the increase of pyruvate flow into fermentation pathways. Ethylene biosynthesis genes encoding 1-aminocyclopropane-1-carboxylic acid (ACC) synthase, ACC oxidase, and ethylene-responsive factors (ERFs) were induced during hypoxia and correlated with AOX and NO levels. We conclude that AOX controls the interaction of NO, reactive oxygen species, and ethylene, triggering a coordinated downstream defensive response against hypoxia.
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Affiliation(s)
- Somaieh Zafari
- Department of Biology, Memorial University of Newfoundland, St. John’s, NL A1C 5S7, Canada
| | - Greg C. Vanlerberghe
- Department of Biological Sciences, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada;
- Department of Cell and Systems Biology, University of Toronto Scarborough, Toronto, ON M1C 1A4, Canada
| | - Abir U. Igamberdiev
- Department of Biology, Memorial University of Newfoundland, St. John’s, NL A1C 5S7, Canada
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26
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Wan R, Song J, Lv Z, Qi X, Han X, Guo Q, Wang S, Shi J, Jian Z, Hu Q, Chen Y. Genome-Wide Identification and Comprehensive Analysis of the AP2/ERF Gene Family in Pomegranate Fruit Development and Postharvest Preservation. Genes (Basel) 2022; 13:genes13050895. [PMID: 35627280 PMCID: PMC9141937 DOI: 10.3390/genes13050895] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/13/2022] [Indexed: 02/07/2023] Open
Abstract
Pomegranate (Punica granatum L.) is a kind of fruit with significant economic, ecological and health values. AP2/ERF transcription factors belong to a large group of factors mainly found in plants and play key roles in plant growth and development. However, AP2/ERF genes in pomegranate and their implication in development and postharvest preservation have been little described. In this study, 116 PgAP2/ERF genes in pomegranate were identified and renamed based on their chromosomal distributions. Phylogenetic relationship with genes from other species, structures, duplications, annotations, cis-elements in promoter sequences, and protein-protein interaction networks among PgAP2/ERF proteins were comprehensively explored. Expression analysis revealed several PgAP2/ERFs associated with the phenotypes of pomegranate seed hardness, including PgAP2/ERF5, PgAP2/ERF36, PgAP2/ERF58, and PgAP2/ERF86. Subsequent analysis indicated that many differentially expressed PgAP2/ERF genes are potentially important regulators of pomegranate fruit development. Furthermore, expression of more than one-half of PgAP2/ERFs was repressed in ‘Tunisian soft seed’ pomegranate fruit under low-temperature cold storage. The results showed that 1-MCP implicated in promoting postharvest preservation of ‘Tunisian soft seed’ pomegranate upregulated the PgAP2/ERF4, PgAP2/ERF15, PgAP2/ERF26, PgAP2/ERF30, PgAP2/ERF35 and PgAP2/ERF45 genes compared to those under low-temperature cold storage. This indicates that these genes are important candidate genes involved in pomegranate postharvest preservation. In summary, the findings of the present study provide an important basis for characterizing the PgAP2/ERF family genes and provide information on the candidate genes involved in pomegranate fruit development and postharvest preservation.
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Affiliation(s)
- Ran Wan
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Jinhui Song
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Zhenyang Lv
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Xingcheng Qi
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Xuemeng Han
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Qiang Guo
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Sa Wang
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Jiangli Shi
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Zaihai Jian
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
| | - Qingxia Hu
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
- Correspondence:
| | - Yanhui Chen
- College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China; (R.W.); (J.S.); (Z.L.); (X.Q.); (X.H.); (Q.G.); (S.W.); (J.S.); (Z.J.); (Y.C.)
- Henan Key Laboratory of Fruit and Cucurbit Biology, College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China
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27
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Deng H, Chen Y, Liu Z, Liu Z, Shu P, Wang R, Hao Y, Su D, Pirrello J, Liu Y, Li Z, Grierson D, Giovannoni JJ, Bouzayen M, Liu M. SlERF.F12 modulates the transition to ripening in tomato fruit by recruiting the co-repressor TOPLESS and histone deacetylases to repress key ripening genes. THE PLANT CELL 2022; 34:1250-1272. [PMID: 35099538 PMCID: PMC8972228 DOI: 10.1093/plcell/koac025] [Citation(s) in RCA: 59] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 01/21/2022] [Indexed: 05/24/2023]
Abstract
Ethylene response factors (ERFs) are downstream components of ethylene-signaling pathways known to play critical roles in ethylene-controlled climacteric fruit ripening, yet little is known about the molecular mechanism underlying their mode of action. Here, we demonstrate that SlERF.F12, a member of the ERF.F subfamily containing Ethylene-responsive element-binding factor-associated Amphiphilic Repression (EAR) motifs, negatively regulates the onset of tomato (Solanum lycopersicum) fruit ripening by recruiting the co-repressor TOPLESS 2 (TPL2) and the histone deacetylases (HDAs) HDA1/HDA3 to repress the transcription of ripening-related genes. The SlERF.F12-mediated transcriptional repression of key ripening-related genes 1-AMINO-CYCLOPROPANE-1-CARBOXYLATE SYNTHASE 2 (ACS2), ACS4, POLYGALACTURONASE 2a, and PECTATE LYASE is dependent on the presence of its C-terminal EAR motif. We show that SlERF.F12 interacts with the co-repressor TPL2 via the C-terminal EAR motif and recruits HDAs SlHDA1 and SlHDA3 to form a tripartite complex in vivo that actively represses transcription of ripening genes by decreasing the level of the permissive histone acetylation marks H3K9Ac and H3K27Ac at their promoter regions. These findings provide new insights into the ripening regulatory network and uncover a direct link between repressor ERFs and histone modifiers in modulating the transition to ripening of climacteric fruit.
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Affiliation(s)
- Heng Deng
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yao Chen
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ziyu Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhaoqiao Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Peng Shu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ruochen Wang
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yanwei Hao
- College of Horticulture, South China Agricultural University, Guangzhou 510642, China
| | - Dan Su
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Julien Pirrello
- GBF Laboratory, Université de Toulouse, INRA, Castanet-Tolosan 31320, France
| | - Yongsheng Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Don Grierson
- School of Biosciences, University of Nottingham, Loughborough LE12 5RD, UK
| | - James J Giovannoni
- Boyce Thompson Institute, Cornell University, Ithaca, New York 14853, USA
- US Department of Agriculture-Agricultural Research Service, Robert W. Holley Center for Agriculture and Health, Ithaca, New York 14853, USA
| | - Mondher Bouzayen
- GBF Laboratory, Université de Toulouse, INRA, Castanet-Tolosan 31320, France
| | - Mingchun Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
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28
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Hu Y, Han Z, Wang T, Li H, Li Q, Wang S, Tian J, Wang Y, Zhang X, Xu X, Han Z, Lü P, Wu T. Ethylene response factor MdERF4 and histone deacetylase MdHDA19 suppress apple fruit ripening through histone deacetylation of ripening-related genes. PLANT PHYSIOLOGY 2022; 188:2166-2181. [PMID: 35088866 PMCID: PMC8968277 DOI: 10.1093/plphys/kiac016] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 12/09/2021] [Indexed: 05/12/2023]
Abstract
Histone deacetylase enzymes participate in the regulation of many aspects of plant development. However, the genome-level targets of histone deacetylation during apple (Malus domestica) fruit development have not been resolved in detail, and the mechanisms of regulation of such a process are unknown. We previously showed that the complex of ethylene response factor 4 (MdERF4) and the TOPLESS co-repressor (MdTPL4; MdERF4-MdTPL4) is constitutively active during apple fruit development (Hu et al., 2020), but whether this transcriptional repression complex is coupled to chromatin modification is unknown. Here, we show that a histone deacetylase (MdHDA19) is recruited to the MdERF4-MdTPL4 complex, thereby impacting fruit ethylene biosynthesis. Transient suppression of MdHDA19 expression promoted fruit ripening and ethylene production. To identify potential downstream target genes regulated by MdHDA19, we conducted chromatin immunoprecipitation (ChIP) sequencing of H3K9 and ChIP-quantitative polymerase chain reaction assays. We found that MdHDA19 affects ethylene production by facilitating H3K9 deacetylation and forms a complex with MdERF4-MdTPL4 to directly repress MdACS3a expression by decreasing the degree of acetylation. We demonstrate that an early-maturing-specific acetylation H3K9ac peak in MdACS3a and expression of MdACS3a were specifically up-regulated in fruit of an early-maturing, but not a late-maturing, cultivar. We provide evidence that a C-to-G mutation in the ethylene-responsive element binding factor-associated amphiphilic repression motif of MdERF4 reduces the repression of MdACS3a by the MdERF4-MdTPL4-MdHDA19 complex. Taken together, our results reveal that the MdERF4-MdTPL-MdHDA19 repressor complex participates in the epigenetic regulation of apple fruit ripening.
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Affiliation(s)
| | | | - Ting Wang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Hua Li
- College of Horticulture, FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 35002, China
| | - Qiqi Li
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Shuai Wang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Ji Tian
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Yi Wang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xinzhong Zhang
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Xuefeng Xu
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zhenhai Han
- State Key Laboratory of Agrobiotechnology, College of Horticulture, China Agricultural University, Beijing, 100193, China
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29
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Wu CJ, Shan W, Liu XC, Zhu LS, Wei W, Yang YY, Guo YF, Bouzayen M, Chen JY, Lu WJ, Kuang JF. Phosphorylation of transcription factor bZIP21 by MAP kinase MPK6-3 enhances banana fruit ripening. PLANT PHYSIOLOGY 2022; 188:1665-1685. [PMID: 34792564 PMCID: PMC8896643 DOI: 10.1093/plphys/kiab539] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 10/16/2021] [Indexed: 06/13/2023]
Abstract
Ripening of fleshy fruits involves both diverse post-translational modifications (PTMs) and dynamic transcriptional reprogramming, but the interconnection between PTMs, such as protein phosphorylation and transcriptional regulation, in fruit ripening remains to be deciphered. Here, we conducted a phosphoproteomic analysis during banana (Musa acuminata) ripening and identified 63 unique phosphopeptides corresponding to 49 proteins. Among them, a Musa acuminata basic leucine zipper transcription factor21 (MabZIP21) displayed elevated phosphorylation level in the ripening stage. MabZIP21 transcript and phosphorylation abundance increased during banana ripening. Genome-wide MabZIP21 DNA binding assays revealed MabZIP21-regulated functional genes contributing to banana ripening, and electrophoretic mobility shift assay, chromatin immunoprecipitation coupled with quantitative polymerase chain reaction, and dual-luciferase reporter analyses demonstrated that MabZIP21 stimulates the transcription of a subset of ripening-related genes via directly binding to their promoters. Moreover, MabZIP21 can be phosphorylated by MaMPK6-3, which plays a role in banana ripening, and T318 and S436 are important phosphorylation sites. Protein phosphorylation enhanced MabZIP21-mediated transcriptional activation ability, and transient overexpression of the phosphomimetic form of MabZIP21 accelerated banana fruit ripening. Additionally, MabZIP21 enlarges its role in transcriptional regulation by activating the transcription of both MaMPK6-3 and itself. Taken together, this study reveals an important machinery of protein phosphorylation in banana fruit ripening in which MabZIP21 is a component of the complex phosphorylation pathway linking the upstream signal mediated by MaMPK6-3 with transcriptional controlling of a subset of ripening-associated genes.
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Affiliation(s)
- Chao-Jie Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Wei Shan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Xun-Cheng Liu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
| | - Li-Sha Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Wei Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Ying-Ying Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Yu-Fan Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Mondher Bouzayen
- Génomique et Biotechnologie des Fruits, Université de Toulouse, INRA, Castanet-Tolosan 31320, France
| | - Jian-Ye Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Wang-Jin Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
| | - Jian-Fei Kuang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and Vegetables/Engineering Research Center of Southern Horticultural Products Preservation, Ministry of Education/Guangdong Laboratory of Lingnan Modern Agriculture, College of Horticultural Science, South China Agricultural University, Guangzhou 510642, China
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Li Q, Wang T, Xu C, Li M, Tian J, Wang Y, Zhang X, Xu X, Han Z, Wu T. MdMADS6 Recruits Histone Deacetylase MdHDA19 to Repress the Expression of the Carotenoid Synthesis-Related Gene MdCCD1 during Fruit Ripening. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11050668. [PMID: 35270138 PMCID: PMC8912856 DOI: 10.3390/plants11050668] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/25/2022] [Accepted: 02/25/2022] [Indexed: 05/31/2023]
Abstract
Fruit ripening is regulated by epigenetic modifications and transcription factors, which may function independently or as protein complexes. Our previous study showed that the apple histone deacetylase19 (MdHDA19) suppresses fruit ripening through the deacetylation of histones in related genes. Here, a MADS-box transcription factor (MdMADS6) was identified using a yeast two-hybrid (Y2H) assay as a candidate protein that interacts with MdHDA19 during apple fruit ripening. Furthermore, Y2H, bimolecular fluorescence complementation (BiFC) and pull-down assays were used to confirm the interaction between MdHDA19 and MdMADS6. Agrobacterium-mediated transient transformation and yeast one-hybrid assays showed that MdMADS6 promoted carotenoid accumulation in apple fruit by acting on the downstream target genes related to carotenoid biosynthesis. In summary, we conclude that, in the early stages of fruit development, the expression of MdMADS6 was maintained at lower levels, where it interacted with MdHDA19 to form a protein complex that inhibited the expression of the downstream genes. At the late stages of fruit development, active expression of MdMADS6 dissociated the protein complex of MdMADS6 and MdHDA19 and consequently promoted the expression of carotenoid biosynthesis genes as well as carotenoid accumulation.
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Affiliation(s)
- Qiqi Li
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Ting Wang
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Chen Xu
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Meishuo Li
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Ji Tian
- Plant Science and Technology College, Beijing University of Agriculture, Beijing 102206, China;
| | - Yi Wang
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Xinzhong Zhang
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Xuefeng Xu
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Zhenhai Han
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
| | - Ting Wu
- College of Horticulture, China Agricultural University, Beijing 100193, China; (Q.L.); (T.W.); (C.X.); (M.L.); (Y.W.); (X.Z.); (X.X.); (Z.H.)
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Li X, Wang X, Zhang Y, Zhang A, You CX. Regulation of fleshy fruit ripening: From transcription factors to epigenetic modifications. HORTICULTURE RESEARCH 2022; 9:uhac013. [PMID: 35147185 PMCID: PMC9035223 DOI: 10.1093/hr/uhac013] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 12/01/2021] [Indexed: 05/24/2023]
Abstract
Fleshy fruits undergo a complex ripening process, developing organoleptic fruit traits that attract herbivores and maximize seed dispersal. Ripening is the terminal stage of fruit development and involves a series of physiological and biochemical changes. In fleshy fruits, ripening always involves a drastic color change triggered by the accumulation of pigments and degradation of chlorophyll, softening caused by cell wall remodeling, and flavor formation as acids and sugars accumulate alongside volatile compounds. The mechanisms underlying fruit ripening rely on the orchestration of ripening-related transcription factors, plant hormones, and epigenetic modifications. In this review, we discuss current knowledge of the transcription factors that regulate ripening in conjunction with ethylene and environmental signals (light and temperature) in the model plant tomato (Solanum lycopersicum) and other fleshy fruits. We emphasize the critical roles of epigenetic regulation, including DNA methylation and histone modification as well as RNA m6A modification, which has been studied intensively. This detailed review was compiled to provide a comprehensive description of the regulatory mechanisms of fruit ripening and guide new strategies for its effective manipulation.
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Affiliation(s)
- Xiuming Li
- National Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271018, China
| | - Xuemei Wang
- Shandong Provincial Key Laboratory of Plant Stress, College of Life Sciences, Shandong Normal University, Jinan 250014, China
| | - Yi Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai-An, 271018, China
| | - Aihong Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai-An, 271018, China
| | - Chun-Xiang You
- National Key Laboratory of Crop Biology, Shandong Collaborative Innovation Center of Fruit & Vegetable Quality and Efficient Production, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai-An, Shandong 271018, China
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Gupta C, Salgotra RK. Epigenetics and its role in effecting agronomical traits. FRONTIERS IN PLANT SCIENCE 2022; 13:925688. [PMID: 36046583 PMCID: PMC9421166 DOI: 10.3389/fpls.2022.925688] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 07/11/2022] [Indexed: 05/16/2023]
Abstract
Climate-resilient crops with improved adaptation to the changing climate are urgently needed to feed the growing population. Hence, developing high-yielding crop varieties with better agronomic traits is one of the most critical issues in agricultural research. These are vital to enhancing yield as well as resistance to harsh conditions, both of which help farmers over time. The majority of agronomic traits are quantitative and are subject to intricate genetic control, thereby obstructing crop improvement. Plant epibreeding is the utilisation of epigenetic variation for crop development, and has a wide range of applications in the field of crop improvement. Epigenetics refers to changes in gene expression that are heritable and induced by methylation of DNA, post-translational modifications of histones or RNA interference rather than an alteration in the underlying sequence of DNA. The epigenetic modifications influence gene expression by changing the state of chromatin, which underpins plant growth and dictates phenotypic responsiveness for extrinsic and intrinsic inputs. Epigenetic modifications, in addition to DNA sequence variation, improve breeding by giving useful markers. Also, it takes epigenome diversity into account to predict plant performance and increase crop production. In this review, emphasis has been given for summarising the role of epigenetic changes in epibreeding for crop improvement.
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He B, Zhang Y, Wang L, Guo D, Jia X, Wu J, Qi S, Wu H, Gao Y, Guo M. Both Two CtACO3 Transcripts Promoting the Accumulation of the Flavonoid Profiles in Overexpressed Transgenic Safflower. FRONTIERS IN PLANT SCIENCE 2022; 13:833811. [PMID: 35463446 PMCID: PMC9019494 DOI: 10.3389/fpls.2022.833811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 02/23/2022] [Indexed: 05/10/2023]
Abstract
The unique flavonoids, quinochalcones, such as hydroxysafflor yellow A (HSYA) and carthamin, in the floret of safflower showed an excellent pharmacological effect in treating cardiocerebral vascular disease, yet the regulating mechanisms governing the flavonoid biosynthesis are largely unknown. In this study, CtACO3, the key enzyme genes required for the ethylene signaling pathway, were found positively related to the flavonoid biosynthesis at different floret development periods in safflower and has two CtACO3 transcripts, CtACO3-1 and CtACO3-2, and the latter was a splice variant of CtACO3 that lacked 5' coding sequences. The functions and underlying probable mechanisms of the two transcripts have been explored. The quantitative PCR data showed that CtACO3-1 and CtACO3-2 were predominantly expressed in the floret and increased with floret development. Subcellular localization results indicated that CtACO3-1 was localized in the cytoplasm, whereas CtACO3-2 was localized in the cytoplasm and nucleus. Furthermore, the overexpression of CtACO3-1 or CtACO3-2 in transgenic safflower lines significantly increased the accumulation of quinochalcones and flavonols. The expression of the flavonoid pathway genes showed an upward trend, with CtCHS1, CtF3H1, CtFLS1, and CtDFR1 was considerably induced in the overexpression of CtACO3-1 or CtACO3-2 lines. An interesting phenomenon for CtACO3-2 protein suppressing the transcription of CtACO3-1 might be related to the nucleus location of CtACO3-2. Yeast two-hybrid (Y2H), glutathione S-transferase (GST) pull-down, and BiFC experiments revealed that CtACO3-2 interacted with CtCSN5a. In addition, the interactions between CtCSN5a and CtCOI1, CtCOI1 and CtJAZ1, CtJAZ1 and CtbHLH3 were observed by Y2H and GST pull-down methods, respectively. The above results suggested that the CtACO3-2 promoting flavonoid accumulation might be attributed to the transcriptional activation of flavonoid biosynthesis genes by CtbHLH3, whereas the CtbHLH3 might be regulated through CtCSN5-CtCOI1-CtJAZ1 signal molecules. Our study provided a novel insight of CtACO3 affected the flavonoid biosynthesis in safflower.
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Affiliation(s)
- Beixuan He
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Yanjie Zhang
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Lunuan Wang
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Dandan Guo
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Xinlei Jia
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Jianhui Wu
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Shuyi Qi
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Hong Wu
- Department of Cardiology, Changhai Hospital of Naval Medical University (Second Military Medical University), Shanghai, China
- *Correspondence: Hong Wu,
| | - Yue Gao
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
- Yue Gao,
| | - Meili Guo
- Department of Pharmacognosy, College of Pharmacy, Naval Medical University (Second Military Medical University), Shanghai, China
- Meili Guo,
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Zhai Y, Fan Z, Cui Y, Gu X, Chen S, Ma H. APETALA2/ethylene responsive factor in fruit ripening: Roles, interactions and expression regulation. FRONTIERS IN PLANT SCIENCE 2022; 13:979348. [PMID: 36061806 PMCID: PMC9434019 DOI: 10.3389/fpls.2022.979348] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 07/29/2022] [Indexed: 05/08/2023]
Abstract
Insects and animals are attracted to, and feed on ripe fruit, thereby promoting seed dispersal. As a vital vitamin and nutrient source, fruit make up an indispensable and enjoyable component of the human diet. Fruit ripening involves a series of physiological and biochemical changes in, among others, pigmentation, chlorophyll (Chl) degradation, texture, sugar accumulation, and flavor. Growing evidence indicates that the coordinated and ordered trait changes during fruit ripening depend on a complex regulatory network consisting of transcription factors, co-regulators, hormonal signals, and epigenetic modifications. As one of the predominant transcription factor families in plants and a downstream component of ethylene signaling, more and more studies are showing that APETALA2/ethylene responsive factor (AP2/ERF) family transcription factors act as critical regulators in fruit ripening. In this review, we focus on the regulatory mechanisms of AP2/ERFs in fruit ripening, and in particular the recent results on their target genes and co-regulators. We summarize and discuss the role of AP2/ERFs in the formation of key fruit-ripening attributes, the enactment of their regulatory mechanisms by interaction with other proteins, their role in the orchestration of phytohormone-signaling networks, and the epigenetic modifications associated with their gene expression. Our aim is to provide a multidimensional perspective on the regulatory mechanisms of AP2/ERFs in fruit ripening, and a reference for understanding and furthering research on the roles of AP2/ERF in fruit ripening.
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Affiliation(s)
- Yanlei Zhai
- College of Horticulture, China Agricultural University, Beijing, China
| | - Zhiyi Fan
- College of Horticulture, China Agricultural University, Beijing, China
| | - Yuanyuan Cui
- College of Horticulture, China Agricultural University, Beijing, China
| | - Xiaojiao Gu
- College of Horticulture, China Agricultural University, Beijing, China
| | - Shangwu Chen
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Huiqin Ma
- College of Horticulture, China Agricultural University, Beijing, China
- *Correspondence: Huiqin Ma,
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Gan Z, Yuan X, Shan N, Wan C, Chen C, Zhu L, Xu Y, Kai W, Zhai X, Chen J. AcERF1B and AcERF073 Positively Regulate Indole-3-acetic Acid Degradation by Activating AcGH3.1 Transcription during Postharvest Kiwifruit Ripening. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:13859-13870. [PMID: 34779211 DOI: 10.1021/acs.jafc.1c03954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Ethylene can accelerate the postharvest ripening process of kiwifruit, while indole-3-acetic acid (IAA) delays it. However, the molecular mechanism by which ethylene regulates IAA degradation is unclear. Here, we found that ethephon promotes the degradation of free IAA in kiwifruit. Furthermore, ethylene can promote the expression of AcGH3.1 and enhance its promoter activity. Two ethylene response factors (ERFs), AcERF1B and AcERF073, were obtained using an AcGH3.1 promoter as bait for a yeast one-hybrid screening library. Both AcERF1B and AcERF073 bind to the AcGH3.1 promoter to activate it. Also, AcERF1B/073 enhanced AcGH3.1 expression, decreased the free IAA content, and increased the IAA-Asp content in kiwifruit. In addition, we found that the AcERF1B and AcERF073 proteins directly interact, and this interaction enhanced their binding to the AcGH3.1 promoter. In summary, our results suggest that AcERF1B and AcERF073 positively regulate IAA degradation by activating AcGH3.1 transcription, which accelerated postharvest kiwifruit ripening.
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Affiliation(s)
- Zengyu Gan
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xin Yuan
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Nan Shan
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Chunpeng Wan
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Chuying Chen
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Liqin Zhu
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yunhe Xu
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Wenbin Kai
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xiawan Zhai
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jinyin Chen
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits and Vegetables, Collaborative Innovation Center of Postharvest Key Technology and Quality Safety of Fruits and Vegetables, Jiangxi Agricultural University, Nanchang 330045, China
- College of Materials and Chemical Engineering, Pingxiang University, Pingxiang 330075, China
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Jing W, Zhao Q, Zhang S, Zeng D, Xu J, Zhou H, Wang F, Liu Y, Li Y. RhWRKY33 Positively Regulates Onset of Floral Senescence by Responding to Wounding- and Ethylene-Signaling in Rose Plants. FRONTIERS IN PLANT SCIENCE 2021; 12:726797. [PMID: 34804083 PMCID: PMC8602865 DOI: 10.3389/fpls.2021.726797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Rose plants are one of the most important horticultural crops, whose commercial value mainly depends on long-distance transportation, and wounding and ethylene are the main factors leading to their quality decline and accelerated senescence in the process. However, underlying molecular mechanisms of crosstalk between wounding and ethylene in the regulation of flower senescence remain poorly understood. In relation to this, transcriptome analysis was performed on rose flowers subjected to various treatments, including control, wounding, ethylene, and wounding- and ethylene- (EW) dual treatment. A large number of differentially expressed genes (DEGs) were identified, ranging from 2,442 between the ethylene- and control-treated groups to 4,055 between the EW- and control-treated groups. Using weighted gene co-expression network analysis (WGCNA), we identified a hub gene RhWRKY33 (rchiobhmchr5g0071811), accumulated in the nucleus, where it may function as a transcription factor. Moreover, quantitative reverse transcription PCR (RT-qPCR) results showed that the expression of RhWRKY33 was higher in the wounding-, ethylene, and EW-treated petals than in the control-treated petals. We also functionally characterized the RhWRKY33 gene through virus-induced gene silencing (VIGS). The silencing of RhWRKY33 significantly delayed the senescence process in the different treatments (control, wounding, ethylene, and EW). Meanwhile, we found that the effect of RhWRKY33-silenced petals under ethylene and EW dual-treatment were stronger than those under wounding treatment in delaying the petal senescence process, implying that RhWRKY33 is closely involved with ethylene and wounding mediated petal senescence. Overall, the results indicate that RhWRKY33 positively regulates the onset of floral senescence mediated by both ethylene and wounding signaling, but relies heavily on ethylene signaling.
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Affiliation(s)
- Weikun Jing
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen, China
- Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen, China
| | - Qingcui Zhao
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen, China
- Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen, China
| | - Shuai Zhang
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen, China
- Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen, China
| | - Daxing Zeng
- School of Construction Engineering, Shenzhen Polytechnic, Shenzhen, China
| | - Jiehua Xu
- School of Construction Engineering, Shenzhen Polytechnic, Shenzhen, China
| | - Hougao Zhou
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Fenglan Wang
- College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Yang Liu
- School of Construction Engineering, Shenzhen Polytechnic, Shenzhen, China
| | - Yonghong Li
- School of Food and Drug, Shenzhen Polytechnic, Shenzhen, China
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Yang L, Meng X, Chen S, Li J, Sun W, Chen W, Wang S, Wan H, Qian G, Yi X, Li J, Zheng Y, Luo M, Chen S, Liu X, Mi Y. Identification of the Histone Deacetylases Gene Family in Hemp Reveals Genes Regulating Cannabinoids Synthesis. FRONTIERS IN PLANT SCIENCE 2021; 12:755494. [PMID: 34868143 PMCID: PMC8636033 DOI: 10.3389/fpls.2021.755494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Histone deacetylases (HDACs) play crucial roles nearly in all aspects of plant biology, including stress responses, development and growth, and regulation of secondary metabolite biosynthesis. The molecular functions of HDACs have been explored in depth in Arabidopsis thaliana, while little research has been reported in the medicinal plant Cannabis sativa L. Here, we excavated 14 CsHDAC genes of C. sativa L that were divided into three relatively conserved subfamilies, including RPD3/HDA1 (10 genes), SIR2 (2 genes), and HD2 (2 genes). Genes associated with the biosynthesis of bioactive constituents were identified by combining the distribution of cannabinoids with the expression pattern of HDAC genes in various organs. Using qRT-PCR and transcription group analysis, we verified the expression of candidate genes in different tissues. We found that the histone inhibitor Trichostatin A (TSA) affected the expression of key genes in the cannabinoid metabolism pathway and the accumulation of synthetic precursors, which indirectly indicates that histone inhibitor may regulate the synthesis of active substances in C. sativa L.
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Affiliation(s)
- Liu Yang
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiangxiao Meng
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Shilin Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jun Li
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei Sun
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Weiqiang Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Sifan Wang
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Huihua Wan
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Guangtao Qian
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin, China
| | - Xiaozhe Yi
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Juncan Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Yaqin Zheng
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Ming Luo
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China
| | - Shanshan Chen
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xia Liu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, China
| | - Yaolei Mi
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
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Guo ZH, Zhang YJ, Yao JL, Xie ZH, Zhang YY, Zhang SL, Gu C. The NAM/ATAF1/2/CUC2 transcription factor PpNAC.A59 enhances PpERF.A16 expression to promote ethylene biosynthesis during peach fruit ripening. HORTICULTURE RESEARCH 2021; 8:209. [PMID: 34593759 PMCID: PMC8484547 DOI: 10.1038/s41438-021-00644-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 06/17/2021] [Accepted: 07/14/2021] [Indexed: 05/02/2023]
Abstract
Peach is a typical climacteric fruit that releases ethylene during fruit ripening. Several studies have been conducted on the transcriptional regulation of ethylene biosynthesis in peach fruit. Herein, an ethylene response factor, PpERF.A16, which was induced by exogenous ethylene, could enhance ethylene biosynthesis by directly inducing the expression of 1-aminocyclopropane-1-carboxylic acid synthase (PpACS1) and 1-aminocyclopropane-1-carboxylic acid oxidase (PpACO1) genes. Moreover, the NAM/ATAF1/2/CUC2 (NAC) transcription factor (TF) PpNAC.A59 was coexpressed with PpERF.A16 in all tested peach cultivars. Interestingly, PpNAC.A59 can directly interact with the promoter of PpERF.A16 to induce its expression but not enhance LUC activity driven by any promoter of PpACS1 or PpACO1. Thus, PpNAC.A59 can indirectly mediate ethylene biosynthesis via the NAC-ERF signaling cascade to induce the expression of both PpACS1 and PpACO1. These results enrich the genetic network of fruit ripening in peach and provide new insight into the ripening mechanism of other perennial fruits.
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Affiliation(s)
- Zhi-Hua Guo
- College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 210095, Nanjing, China
| | - You-Jia Zhang
- College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 210095, Nanjing, China
| | - Jia-Long Yao
- New Zealand Institute of Plant & Food Research Ltd, Private Bag 92169, Auckland, 1142, New Zealand
| | - Zhi-Hua Xie
- College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 210095, Nanjing, China
| | - Yu-Yan Zhang
- Institute of Pomology, Jiangsu Academy of Agricultural Sciences/Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, 210014, Nanjing, China
| | - Shao-Ling Zhang
- College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 210095, Nanjing, China
| | - Chao Gu
- College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, 210095, Nanjing, China.
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Zhang Y, Wu Z, Feng M, Chen J, Qin M, Wang W, Bao Y, Xu Q, Ye Y, Ma C, Jiang CZ, Gan SS, Zhou H, Cai Y, Hong B, Gao J, Ma N. The circadian-controlled PIF8-BBX28 module regulates petal senescence in rose flowers by governing mitochondrial ROS homeostasis at night. THE PLANT CELL 2021; 33:2716-2735. [PMID: 34043798 PMCID: PMC8408477 DOI: 10.1093/plcell/koab152] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 05/19/2021] [Indexed: 05/20/2023]
Abstract
Reactive oxygen species (ROS) are unstable reactive molecules that are toxic to cells. Regulation of ROS homeostasis is crucial to protect cells from dysfunction, senescence, and death. In plant leaves, ROS are mainly generated from chloroplasts and are tightly temporally restricted by the circadian clock. However, little is known about how ROS homeostasis is regulated in nonphotosynthetic organs, such as petals. Here, we showed that hydrogen peroxide (H2O2) levels exhibit typical circadian rhythmicity in rose (Rosa hybrida) petals, consistent with the measured respiratory rate. RNA-seq and functional screening identified a B-box gene, RhBBX28, whose expression was associated with H2O2 rhythms. Silencing RhBBX28 accelerated flower senescence and promoted H2O2 accumulation at night in petals, while overexpression of RhBBX28 had the opposite effects. RhBBX28 influenced the expression of various genes related to respiratory metabolism, including the TCA cycle and glycolysis, and directly repressed the expression of SUCCINATE DEHYDROGENASE 1, which plays a central role in mitochondrial ROS (mtROS) homeostasis. We also found that PHYTOCHROME-INTERACTING FACTOR8 (RhPIF8) could activate RhBBX28 expression to control H2O2 levels in petals and thus flower senescence. Our results indicate that the circadian-controlled RhPIF8-RhBBX28 module is a critical player that controls flower senescence by governing mtROS homeostasis in rose.
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Affiliation(s)
- Yi Zhang
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Zhicheng Wu
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Ming Feng
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Jiwei Chen
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Meizhu Qin
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Wenran Wang
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Ying Bao
- Faculty of Life Science, Tangshan Normal University, Tangshan, 063000, Hebei, China
| | - Qian Xu
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Ying Ye
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Chao Ma
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Cai-Zhong Jiang
- United States Department of Agriculture, Crop Pathology and Genetic Research Unit, Agricultural Research Service, University of California, Davis, CA, USA
- Department of Plant Sciences, University of California, Davis, CA, USA
| | - Su-Sheng Gan
- Plant Biology Section, School of Integrative Plant Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA
| | - Hougao Zhou
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Youming Cai
- Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Bo Hong
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Junping Gao
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Nan Ma
- Department of Ornamental Horticulture, State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, College of Horticulture, China Agricultural University, Beijing, 100193, China
- Author for correspondence:
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Pan H, Lyu S, Chen Y, Xu S, Ye J, Chen G, Wu S, Li X, Chen J, Pan D. MicroRNAs and Transcripts Associated with an Early Ripening Mutant of Pomelo ( Citrus grandis Osbeck). Int J Mol Sci 2021; 22:9348. [PMID: 34502256 PMCID: PMC8431688 DOI: 10.3390/ijms22179348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 11/16/2022] Open
Abstract
'Liuyuezaoyou' is an early-ripening cultivar selected from a bud mutation of Citrus grandis Osbeck 'Guanximiyou'. They were designated here as MT and WT, respectively. The fruit of MT matures about 45 days earlier than WT, which was accompanied by significant changes in key phytohormones, sugar compounds and organic acids. Recent studies have showed that microRNAs (miRNAs) play an important role in regulation of fruit ripening process. The aim of this study was to compare MT fruits with WT ones to uncover if miRNAs were implicated in the ripening of C. grandis. Fruits of both WT and MT at four developmental stages were analyzed using high-throughput sequencing and RT-PCR. Several independent miRNA libraries were constructed and sequenced. A total of 747 known miRNAs were identified and 99 novel miRNAs were predicted across all libraries. The novel miRNAs were found to have hairpin structures and possess star sequences. These results showed that transcriptome and miRNAs are substantially involved in a complex and comprehensive network in regulation of fruit ripening of this species. Further analysis of the network model revealed intricate interactions of miRNAs with mRNAs during the fleshy fruit ripening process. Several identified miRNAs have potential targets. These include auxin-responsive protein IAA9, sucrose synthase 3, V-type proton ATPase, NCED1 (ABA biosynthesis) and PL1/5 (pectate lyase genes), as well as NAC100 putative coordinated regulation networks, whose interactions with respective miRNAs may contribute significantly to fruit ripening of C. grandis.
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Affiliation(s)
- Heli Pan
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
| | - Shiheng Lyu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
- Department of Environmental Horticulture and Mid-Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL 32703, USA
- State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Hangzhou 311300, China
| | - Yanqiong Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
- Institute of Oceanography, Minjiang University, Fuzhou 350108, China
| | - Shirong Xu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
| | - Jianwen Ye
- Agricultural and Rural Bureau of Pinghe County, Zhangzhou 363700, China;
| | - Guixin Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
| | - Shaohua Wu
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
| | - Xiaoting Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
| | - Jianjun Chen
- Department of Environmental Horticulture and Mid-Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL 32703, USA
| | - Dongming Pan
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (H.P.); (S.L.); (Y.C.); (S.X.); (G.C.); (S.W.); (X.L.)
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Khaksar G, Sirikantaramas S. Transcriptome-wide identification and expression profiling of the ERF gene family suggest roles as transcriptional activators and repressors of fruit ripening in durian. PLoS One 2021; 16:e0252367. [PMID: 34375337 PMCID: PMC8354473 DOI: 10.1371/journal.pone.0252367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/24/2021] [Indexed: 11/19/2022] Open
Abstract
The involvement of the phytohormone ethylene as the main trigger of climacteric fruit ripening is well documented. However, our knowledge regarding the role of ethylene response factor (ERF) transcription factor in the transcriptional regulation of ethylene biosynthesis during fruit ripening remains limited. Here, comprehensive transcriptome analysis and expression profiling revealed 63 ERFs in durian pulps, termed DzERF1-DzERF63, of which 34 exhibited ripening-associated expression patterns at three stages (unripe, midripe, and ripe) during fruit ripening. Hierarchical clustering analysis classified 34 ripening-associated DzERFs into three distinct clades, among which, clade I consisted of downregulated DzERFs and clade III included those upregulated during ripening. Phylogenetic analysis predicted the functions of some DzERFs based on orthologs of previously characterized ERFs. Among downregulated DzERFs, DzERF6 functional prediction revealed its role as a negative regulator of ripening via ethylene biosynthetic gene repression, whereas among upregulated genes, DzERF9 was predicted to positively regulate ethylene biosynthesis. Correlation network analysis of 34 ripening-associated DzERFs with potential target genes revealed a strong negative correlation between DzERF6 and ethylene biosynthetic genes and a strong positive correlation between DzERF9 and ethylene biosynthesis. DzERF6 and DzERF9 showed differential expression patterns in association with different ripening treatments (natural, ethylene-induced, and 1-methylcyclopropene-delayed ripening). DzERF6 was downregulated, whereas DzERF9 was upregulated, during ripening and after ethylene treatment. The auxin-repressed and auxin-induced expression of DzERF6 and DzERF9, respectively, confirmed its dose-dependent responsiveness to exogenous auxin. We suggest ethylene- and auxin-mediated roles of DzERF6 and DzERF9 during fruit ripening, possibly through transcriptional regulation of ethylene biosynthetic genes.
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Affiliation(s)
- Gholamreza Khaksar
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Supaart Sirikantaramas
- Molecular Crop Research Unit, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Omics Sciences and Bioinformatics Center, Chulalongkorn University, Bangkok, Thailand
- * E-mail:
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Citric Acid-Mediated Abiotic Stress Tolerance in Plants. Int J Mol Sci 2021; 22:ijms22137235. [PMID: 34281289 PMCID: PMC8268203 DOI: 10.3390/ijms22137235] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/26/2021] [Accepted: 06/27/2021] [Indexed: 01/07/2023] Open
Abstract
Several recent studies have shown that citric acid/citrate (CA) can confer abiotic stress tolerance to plants. Exogenous CA application leads to improved growth and yield in crop plants under various abiotic stress conditions. Improved physiological outcomes are associated with higher photosynthetic rates, reduced reactive oxygen species, and better osmoregulation. Application of CA also induces antioxidant defense systems, promotes increased chlorophyll content, and affects secondary metabolism to limit plant growth restrictions under stress. In particular, CA has a major impact on relieving heavy metal stress by promoting precipitation, chelation, and sequestration of metal ions. This review summarizes the mechanisms that mediate CA-regulated changes in plants, primarily CA’s involvement in the control of physiological and molecular processes in plants under abiotic stress conditions. We also review genetic engineering strategies for CA-mediated abiotic stress tolerance. Finally, we propose a model to explain how CA’s position in complex metabolic networks involving the biosynthesis of phytohormones, amino acids, signaling molecules, and other secondary metabolites could explain some of its abiotic stress-ameliorating properties. This review summarizes our current understanding of CA-mediated abiotic stress tolerance and highlights areas where additional research is needed.
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Mu Q, Li X, Luo J, Pan Q, Li Y, Gu T. Characterization of expansin genes and their transcriptional regulation by histone modifications in strawberry. PLANTA 2021; 254:21. [PMID: 34216276 DOI: 10.1007/s00425-021-03665-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/16/2021] [Indexed: 05/22/2023]
Abstract
The possible candidate expansin genes, which may be important for strawberry fruit softening, have been identified in the diploid woodland strawberry Fragaria vesca and the octoploid cultivated strawberry Fragaria × ananassa and their transcriptional regulation by histone modifications has been studied. Softening process greatly affects fruit texture and shelf life. Expansins (EXPs) are a group of structural proteins participating in cell wall loosening, which break the hydrogen bonding between cellulose microfibrils and hemicelluloses. However, our knowledge on how EXP genes are regulated in fruit ripening, especially in non-climacteric fleshy fruits, is limited. Here, we have identified the EXP genes in both the octoploid cultivated strawberry (Fragaria × ananassa) and one of its diploid progenitor species, woodland strawberry (Fragaria vesca). We found that EXP proteins in F. × ananassa were structurally more divergent than the ones in F. vesca. Transcriptome data suggested that FaEXP88, FaEXP114, FveEXP11 and FveEXP33 were the four candidate EXP genes more likely involved in fruit softening, whose transcript levels dramatically increased when firmness decreased during fruit maturation. Phylogenetic analyses showed that those candidate genes were closely clustered, indicating the presence of homoeolog expression dominance in the EXP gene family in strawberry. Moreover, we have performed chromatin immunoprecipitation (ChIP) experiments to investigate the distribution of histone modifications along the promoters and genic regions of the EXP genes in F. vesca. ChIP data revealed that the transcript levels of EXP genes were highly correlated with the enrichment of H3K9/K14 acetylation and H3K27 tri-methylation. Collectively, this study identifies the key EXP genes involved in strawberry fruit softening and reveals a regulatory role of histone modifications in their transcriptional regulation, which would facilitate functional studies of the EXP genes in the ripening of non-climacteric fruits.
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Affiliation(s)
- Qin Mu
- State Key Laboratory of Plant Genetics and Germplasm Enhancement and College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Xianyang Li
- State Key Laboratory of Plant Genetics and Germplasm Enhancement and College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Jianhua Luo
- State Key Laboratory of Plant Genetics and Germplasm Enhancement and College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Qinwei Pan
- State Key Laboratory of Plant Genetics and Germplasm Enhancement and College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Yi Li
- Department of Plant Science and Landscape Architecture, University of Connecticut, Storrs, CT, 06269, USA.
| | - Tingting Gu
- State Key Laboratory of Plant Genetics and Germplasm Enhancement and College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China.
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Chen J, Li Y, Li Y, Li Y, Wang Y, Jiang C, Choisy P, Xu T, Cai Y, Pei D, Jiang CZ, Gan SS, Gao J, Ma N. AUXIN RESPONSE FACTOR 18-HISTONE DEACETYLASE 6 module regulates floral organ identity in rose (Rosa hybrida). PLANT PHYSIOLOGY 2021; 186:1074-1087. [PMID: 33729501 PMCID: PMC8195501 DOI: 10.1093/plphys/kiab130] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
The phytohormone auxin plays a pivotal role in floral meristem initiation and gynoecium development, but whether and how auxin controls floral organ identity remain largely unknown. Here, we found that auxin levels influence organ specification, and changes in auxin levels influence homeotic transformation between petals and stamens in rose (Rosa hybrida). The PIN-FORMED-LIKES (PILS) gene RhPILS1 governs auxin levels in floral buds during floral organogenesis. RhAUXIN RESPONSE FACTOR 18 (RhARF18), whose expression decreases with increasing auxin content, encodes a transcriptional repressor of the C-class gene RhAGAMOUS (RhAG), and controls stamen-petal organ specification in an auxin-dependent manner. Moreover, RhARF18 physically interacts with the histone deacetylase (HDA) RhHDA6. Silencing of RhHDA6 increases H3K9/K14 acetylation levels at the site adjacent to the RhARF18-binding site in the RhAG promoter and reduces petal number, indicating that RhARF18 might recruit RhHDA6 to the RhAG promoter to reinforce the repression of RhAG transcription. We propose a model for how auxin homeostasis controls floral organ identity via regulating transcription of RhAG.
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Affiliation(s)
- Jiwei Chen
- State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Yang Li
- State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Yonghong Li
- School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, China
| | - Yuqi Li
- State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Yi Wang
- State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Chuyan Jiang
- State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
| | | | - Tao Xu
- LVMH Recherche, F-45800 St Jean de Braye, France
| | - Youming Cai
- Shanghai Academy of Agricultural Sciences, Shanghai, 201403, China
| | - Dong Pei
- State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
| | - Cai-Zhong Jiang
- Crop Pathology and Genetic Research Unit, US Department of Agriculture, Agricultural Research Service, University of California, Davis, California, USA
- Department of Plant Sciences, University of California, Davis, California, USA
| | - Su-Sheng Gan
- Plant Biology Section, School of Integrative Plant Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, USA
| | - Junping Gao
- State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
| | - Nan Ma
- State Key Laboratory of Agrobiotechnology, Beijing Key Laboratory of Development and Quality Control of Ornamental Crops, Department of Ornamental Horticulture, College of Horticulture, China Agricultural University, Beijing 100193, China
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Zeng D, Teixeira da Silva JA, Zhang M, Yu Z, Si C, Zhao C, Dai G, He C, Duan J. Genome-Wide Identification and Analysis of the APETALA2 (AP2) Transcription Factor in Dendrobium officinale. Int J Mol Sci 2021; 22:5221. [PMID: 34069261 PMCID: PMC8156592 DOI: 10.3390/ijms22105221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/09/2021] [Accepted: 05/11/2021] [Indexed: 11/17/2022] Open
Abstract
The APETALA2 (AP2) transcription factors (TFs) play crucial roles in regulating development in plants. However, a comprehensive analysis of the AP2 family members in a valuable Chinese herbal orchid, Dendrobium officinale, or in other orchids, is limited. In this study, the 14 DoAP2 TFs that were identified from the D. officinale genome and named DoAP2-1 to DoAP2-14 were divided into three clades: euAP2, euANT, and basalANT. The promoters of all DoAP2 genes contained cis-regulatory elements related to plant development and also responsive to plant hormones and stress. qRT-PCR analysis showed the abundant expression of DoAP2-2, DoAP2-5, DoAP2-7, DoAP2-8 and DoAP2-12 genes in protocorm-like bodies (PLBs), while DoAP2-3, DoAP2-4, DoAP2-6, DoAP2-9, DoAP2-10 and DoAP2-11 expression was strong in plantlets. In addition, the expression of some DoAP2 genes was down-regulated during flower development. These results suggest that DoAP2 genes may play roles in plant regeneration and flower development in D. officinale. Four DoAP2 genes (DoAP2-1 from euAP2, DoAP2-2 from euANT, and DoAP2-6 and DoAP2-11 from basal ANT) were selected for further analyses. The transcriptional activation of DoAP2-1, DoAP2-2, DoAP2-6 and DoAP2-11 proteins, which were localized in the nucleus of Arabidopsis thaliana mesophyll protoplasts, was further analyzed by a dual-luciferase reporter gene system in Nicotiana benthamiana leaves. Our data showed that pBD-DoAP2-1, pBD-DoAP2-2, pBD-DoAP2-6 and pBD-DoAP2-11 significantly repressed the expression of the LUC reporter compared with the negative control (pBD), suggesting that these DoAP2 proteins may act as transcriptional repressors in the nucleus of plant cells. Our findings on AP2 genes in D. officinale shed light on the function of AP2 genes in this orchid and other plant species.
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Affiliation(s)
- Danqi Zeng
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (D.Z.); (M.Z.); (Z.Y.); (C.S.); (C.Z.)
- College of Life Sciences, University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Shijingshan District, Beijing 100049, China
| | | | - Mingze Zhang
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (D.Z.); (M.Z.); (Z.Y.); (C.S.); (C.Z.)
- College of Life Sciences, University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Zhenming Yu
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (D.Z.); (M.Z.); (Z.Y.); (C.S.); (C.Z.)
| | - Can Si
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (D.Z.); (M.Z.); (Z.Y.); (C.S.); (C.Z.)
| | - Conghui Zhao
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (D.Z.); (M.Z.); (Z.Y.); (C.S.); (C.Z.)
- College of Life Sciences, University of the Chinese Academy of Sciences, No. 19A Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Guangyi Dai
- Opening Public Laboratory, Chinese Academy of Sciences, Guangzhou 510650, China;
| | - Chunmei He
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (D.Z.); (M.Z.); (Z.Y.); (C.S.); (C.Z.)
| | - Juan Duan
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; (D.Z.); (M.Z.); (Z.Y.); (C.S.); (C.Z.)
- Center of Economic Botany, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou 510650, China
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Kumar V, Thakur JK, Prasad M. Histone acetylation dynamics regulating plant development and stress responses. Cell Mol Life Sci 2021; 78:4467-4486. [PMID: 33638653 PMCID: PMC11072255 DOI: 10.1007/s00018-021-03794-x] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/21/2021] [Accepted: 02/18/2021] [Indexed: 12/17/2022]
Abstract
Crop productivity is directly dependent on the growth and development of plants and their adaptation during different environmental stresses. Histone acetylation is an epigenetic modification that regulates numerous genes essential for various biological processes, including development and stress responses. Here, we have mainly discussed the impact of histone acetylation dynamics on vegetative growth, flower development, fruit ripening, biotic and abiotic stress responses. Besides, we have also emphasized the information gaps which are obligatory to be examined for understanding the complete role of histone acetylation dynamics in plants. A comprehensive knowledge about the histone acetylation dynamics will ultimately help to improve stress resistance and reduce yield losses in different crops due to climate changes.
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Affiliation(s)
- Verandra Kumar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Jitendra K Thakur
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Manoj Prasad
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India.
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Ji Y, Qu Y, Jiang Z, Yan J, Chu J, Xu M, Su X, Yuan H, Wang A. The mechanism for brassinosteroids suppressing climacteric fruit ripening. PLANT PHYSIOLOGY 2021; 185:1875-1893. [PMID: 33743010 PMCID: PMC8133653 DOI: 10.1093/plphys/kiab013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/02/2021] [Indexed: 05/21/2023]
Abstract
The plant hormone ethylene is important for the ripening of climacteric fruit, such as pear (Pyrus ussuriensis), and the brassinosteroid (BR) class of phytohormones affects ethylene biosynthesis during ripening via an unknown molecular mechanism. Here, we observed that exogenous BR treatment suppressed ethylene production and delayed fruit ripening, whereas treatment with a BR biosynthesis inhibitor promoted ethylene production and accelerated fruit ripening in pear, suggesting BR is a ripening suppressor. The expression of the transcription factor BRASSINAZOLE-RESISTANT 1PuBZR1 was enhanced by BR treatment during pear fruit ripening. PuBZR1 interacted with PuACO1, which converts 1-aminocyclopropane-1-carboxylic acid (ACC) to ethylene, and suppressed its activity. BR-activated PuBZR1 bound to the promoters of PuACO1 and of PuACS1a, which encodes ACC synthase, and directly suppressed their transcription. Moreover, PuBZR1 suppressed the expression of transcription factor PuERF2 by binding its promoter, and PuERF2 bound to the promoters of PuACO1 and PuACS1a. We concluded that PuBZR1 indirectly suppresses the transcription of PuACO1 and PuACS1a through its regulation of PuERF2. Ethylene production and expression profiles of corresponding apple (Malus domestica) homologs showed similar changes following epibrassinolide treatment. Together, these results suggest that BR-activated BZR1 suppresses ACO1 activity and the expression of ACO1 and ACS1, thereby reducing ethylene production and suppressing fruit ripening. This likely represents a conserved mechanism by which BR suppresses ethylene biosynthesis during climacteric fruit ripening.
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Affiliation(s)
- Yinglin Ji
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Yi Qu
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Zhongyu Jiang
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Jijun Yan
- National Centre for Plant Gene Research (Beijing), Innovation Academy for Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Jinfang Chu
- National Centre for Plant Gene Research (Beijing), Innovation Academy for Seed Design, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Mingyang Xu
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Xin Su
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Hui Yuan
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
| | - Aide Wang
- Key Laboratory of Fruit Postharvest Biology, Liaoning Province, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Author for communication:
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Kuang J, Wu C, Guo Y, Walther D, Shan W, Chen J, Chen L, Lu W. Deciphering transcriptional regulators of banana fruit ripening by regulatory network analysis. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:477-489. [PMID: 32920977 PMCID: PMC7955892 DOI: 10.1111/pbi.13477] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 08/31/2020] [Indexed: 05/19/2023]
Abstract
Fruit ripening is a critical phase in the production and marketing of fruits. Previous studies have indicated that fruit ripening is a highly coordinated process, mainly regulated at the transcriptional level, in which transcription factors play essential roles. Thus, identifying key transcription factors regulating fruit ripening as well as their associated regulatory networks promises to contribute to a better understanding of fruit ripening. In this study, temporal gene expression analyses were performed to investigate banana fruit ripening with the aim to discern the global architecture of gene regulatory networks underlying fruit ripening. Eight time points were profiled covering dynamic changes of phenotypes, the associated physiology and levels of known ripening marker genes. Combining results from a weighted gene co-expression network analysis (WGCNA) as well as cis-motif analysis and supported by EMSA, Y1H, tobacco-, banana-transactivation experimental results, the regulatory network of banana fruit ripening was constructed, from which 25 transcription factors were identified as prime candidates to regulate the ripening process by modulating different ripening-related pathways. Our study presents the first global view of the gene regulatory network involved in banana fruit ripening, which may provide the basis for a targeted manipulation of fruit ripening to attain higher banana and loss-reduced banana commercialization.
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Affiliation(s)
- Jian‐Fei Kuang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China)Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and VegetablesCollege of HorticultureSouth China Agricultural UniversityGuangzhouChina
| | - Chao‐Jie Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China)Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and VegetablesCollege of HorticultureSouth China Agricultural UniversityGuangzhouChina
| | - Yu‐Fan Guo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China)Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and VegetablesCollege of HorticultureSouth China Agricultural UniversityGuangzhouChina
| | - Dirk Walther
- Max Planck Institute of Molecular Plant PhysiologyPotsdam‐GolmGermany
| | - Wei Shan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China)Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and VegetablesCollege of HorticultureSouth China Agricultural UniversityGuangzhouChina
| | - Jian‐Ye Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China)Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and VegetablesCollege of HorticultureSouth China Agricultural UniversityGuangzhouChina
| | - Lin Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China)Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and VegetablesCollege of HorticultureSouth China Agricultural UniversityGuangzhouChina
| | - Wang‐Jin Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro‐bioresources/Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (South China)Ministry of Agriculture and Rural Affairs/Guangdong Provincial Key Laboratory of Postharvest Science of Fruits and VegetablesCollege of HorticultureSouth China Agricultural UniversityGuangzhouChina
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Cui Y, Zhai Y, Flaishman M, Li J, Chen S, Zheng C, Ma H. Ethephon induces coordinated ripening acceleration and divergent coloration responses in fig (Ficus carica L.) flowers and receptacles. PLANT MOLECULAR BIOLOGY 2021; 105:347-364. [PMID: 33185823 DOI: 10.1007/s11103-020-01092-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 11/04/2020] [Indexed: 05/15/2023]
Abstract
The regulatory landscape of ethephon-accelerated fig ripening is revealed; flowers and receptacles exhibit opposite responses in anthocyanin accumulation; PG, PL and EXP are suggested key genes in fig softening. Ethephon is used to accelerate fig-fruit ripening for improvement of harvesting efficiency, but the underlying molecular mechanism is still unclear. To elucidate the detailed biological mechanism of ethylene-accelerated fig ripening, fruit in phase II (the lag phase on the double sigmoid growth curve) were treated with ethephon, and reached commercial ripeness 6 days earlier than the nontreated controls. Transcriptomes of flowers and the surrounding receptacles-which together make up the pseudocarp in fig fruit-were analyzed. There were 5189, 5818 and 2563 differentially expressed genes (DEGs) 2, 4 and 6 days after treatment (DAT) in treated compared to control fruit, screened by p-adjust < 0.05 and |log2(fold change) |≥ 2. The DEGs were significantly enriched in plant hormone metabolism and signal transduction, cell-wall modification, sugar accumulation and anthocyanin accumulation pathways. DEGs in the first three pathway categories demonstrated an overall similar expression change in flowers and receptacles, whereas DEGs in anthocyanin pigmentation revealed divergent transcript abundance. Specifically, in both flowers and receptacles, ethephon significantly upregulated 1-aminocyclopropane-1-carboxylate oxidase and downregulated most of the ethylene-response factor genes; polygalacturonase, pectate lyase and expansin were mainly upregulated; two acid beta-fructofuranosidases were upregulated. However, structural genes in the anthocyanin-synthesis pathway were mainly downregulated in female flowers 2 and 4 DAT, whereas they were upregulated in the receptacles. Our study reveals the regulatory landscape of the two tissues of fig fruit in ethylene-induced ripening; the differentially expressed pathways and genes provide valuable resources for the mining of target genes for crucial biological and commercial trait improvement.
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Affiliation(s)
- Yuanyuan Cui
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Yanlei Zhai
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, 100193, China
| | - Moshe Flaishman
- Department of Fruit Tree Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| | - Jinping Li
- Fig Research Institute of Weiyuan County, Neijiang, 642450, Sichuan, China
| | - Shangwu Chen
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Chuanlin Zheng
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, 100193, China.
| | - Huiqin Ma
- Department of Fruit Tree Sciences, College of Horticulture, China Agricultural University, Beijing, 100193, China.
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50
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Yuan Y, Xu X, Luo Y, Gong Z, Hu X, Wu M, Liu Y, Yan F, Zhang X, Zhang W, Tang Y, Feng B, Li Z, Jiang C, Deng W. R2R3 MYB-dependent auxin signalling regulates trichome formation, and increased trichome density confers spider mite tolerance on tomato. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:138-152. [PMID: 32654333 PMCID: PMC7769234 DOI: 10.1111/pbi.13448] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/22/2020] [Accepted: 07/06/2020] [Indexed: 05/21/2023]
Abstract
Unicellular and multicellular tomato trichomes function as mechanical and chemical barriers against herbivores. Auxin treatment increased the formation of II, V and VI type trichomes in tomato leaves. The auxin response factor gene SlARF4, which was highly expressed in II, V and VI type trichomes, positively regulated the auxin-induced formation of II, V and VI type trichomes in the tomato leaves. SlARF4 overexpression plants with high densities of these trichomes exhibited tolerance to spider mites. Two R2R3 MYB genes, SlTHM1 and SlMYB52, were directly targeted and inhibited by SlARF4. SlTHM1 was specifically expressed in II and VI type trichomes and negatively regulated the auxin-induced formation of II and VI type trichomes in the tomato leaves. SlTHM1 down-regulation plants with high densities of II and VI type trichomes also showed tolerance to spider mites. SlMYB52 was specifically expressed in V type trichomes and negatively regulated the auxin-induced formation of V type trichome in the tomato leaves. The regulation of SlARF4 on the formation of II, V and VI type trichomes depended on SlTHM1 and SlMYB52, which directly targeted cyclin gene SlCycB2 and increased its expression. In conclusion, our data indicates that the R2R3 MYB-dependent auxin signalling pathway regulates the formation of II, V and VI type trichomes in tomato leaves. Our study provides an effective method for improving the tolerance of tomato to spider mites.
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Affiliation(s)
- Yujin Yuan
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
- Department of Plant SciencesUniversity of CaliforniaDavisCAUSA
| | - Xin Xu
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Yingqing Luo
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Zehao Gong
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Xiaowei Hu
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Mengbo Wu
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Yudong Liu
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Fang Yan
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Xiaolan Zhang
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Wenfa Zhang
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Yuwei Tang
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Bihong Feng
- College of AgricultureGuangxi UniversityNanningChina
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
| | - Cai‐Zhong Jiang
- Department of Plant SciencesUniversity of CaliforniaDavisCAUSA
- Crops Pathology and Genetics Research UnitUnited States Department of AgricultureAgricultural Research ServiceDavisCAUSA
| | - Wei Deng
- Key Laboratory of Plant Hormones and Development Regulation of ChongqingSchool of Life SciencesChongqing UniversityChongqingChina
- Center of Plant Functional GenomicsInstitute of Advanced Interdisciplinary StudiesChongqing UniversityChongqingChina
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