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Xu J, Liu H, Zhou C, Wang J, Wang J, Han Y, Zheng N, Zhang M, Li X. The ubiquitin-proteasome system in the plant response to abiotic stress: Potential role in crop resilience improvement. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 342:112035. [PMID: 38367822 DOI: 10.1016/j.plantsci.2024.112035] [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: 11/29/2023] [Revised: 02/09/2024] [Accepted: 02/11/2024] [Indexed: 02/19/2024]
Abstract
The post-translational modification (PTM) of proteins by ubiquitination modulates many physiological processes in plants. As the major protein degradation pathway in plants, the ubiquitin-proteasome system (UPS) is considered a promising target for improving crop tolerance drought, high salinity, extreme temperatures, and other abiotic stressors. The UPS also participates in abiotic stress-related abscisic acid (ABA) signaling. E3 ligases are core components of the UPS-mediated modification process due to their substrate specificity. In this review, we focus on the abiotic stress-associated regulatory mechanisms and functions of different UPS components, emphasizing the participation of E3 ubiquitin ligases. We also summarize and discuss UPS-mediated modulation of ABA signaling. In particular, we focus our review on recent research into the UPS-mediated modulation of the abiotic stress response in major crop plants. We propose that altering the ubiquitination site of the substrate or the substrate-specificity of E3 ligase using genome editing technology such as CRISPR/Cas9 may improve the resistance of crop plants to adverse environmental conditions. Such a strategy will require continued research into the role of the UPS in mediating the abiotic stress response in plants.
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Affiliation(s)
- Jian Xu
- Qiqihar Branch of the Heilongjiang Academy of Agricultural Sciences, Qiqihar, China; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Hongjie Liu
- State Key Laboratory of Plant Diversity and Specialty Crops, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Zhou
- Qiqihar Branch of the Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Jinxing Wang
- Suihua Branch of the Heilongjiang Academy of Agricultural Sciences, Suihua, China
| | - Junqiang Wang
- Qiqihar Branch of the Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Yehui Han
- Qiqihar Branch of the Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Nan Zheng
- Industrial Crop Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Ming Zhang
- Industrial Crop Institute, Heilongjiang Academy of Agricultural Sciences, Harbin, China
| | - Xiaoming Li
- State Key Laboratory of Plant Diversity and Specialty Crops, Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Innovative Academy of Seed Design, Chinese Academy of Sciences, Guangzhou, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Wang J, Mao L, Li Y, Lu K, Qu C, Tang Z, Li J, Liu L. Natural variation in BnaA9.NF-YA7 contributes to drought tolerance in Brassica napus L. Nat Commun 2024; 15:2082. [PMID: 38453909 PMCID: PMC10920887 DOI: 10.1038/s41467-024-46271-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 02/21/2024] [Indexed: 03/09/2024] Open
Abstract
Rapeseed (Brassica napus) is one of the important oil crops worldwide. Its production is often threatened by drought stress. Here, we identify a transcription factor (BnaA9.NF-YA7) that negatively regulates drought tolerance through genome-wide association study in B. napus. The presence of two SNPs within a CCAAT cis element leads to downregulation of BnaA9.NF-YA7 expression. In addition, the M63I (G-to-C) substitution in the transactivation domain can activate low level expression of BnaA4.DOR, which is an inhibitory factor of ABA-induced stomatal closure. Furthermore, we determine that Bna.ABF3/4s directly regulate the expression of BnaA9.NF-YA7, and BnaA9.NF-YA7 indirectly suppresses the expression of Bna.ABF3/4s by regulation of Bna.ASHH4s. Our findings uncover that BnaA9.NF-YA7 serves as a supplementary role for ABA signal balance under drought stress conditions, and provide a potential molecular target to breed drought-tolerant B. napus cultivars.
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Affiliation(s)
- Jia Wang
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China
| | - Lin Mao
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China
| | - Yangyang Li
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China
| | - Kun Lu
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China
| | - Cunmin Qu
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China
| | - Zhanglin Tang
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China
| | - Jiana Li
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China
| | - Liezhao Liu
- College of Agronomy and Biotechnology, Southwest University, Beibei, Chongqing, 400715, China.
- Academy of Agricultural Science, Southwest University, Beibei, Chongqing, 400715, China.
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Ruan Q, Bai X, Wang Y, Zhang X, Wang B, Zhao Y, Zhu X, Wei X. Regulation of endogenous hormone and miRNA in leaves of alfalfa (Medicago sativa L.) seedlings under drought stress by endogenous nitric oxide. BMC Genomics 2024; 25:229. [PMID: 38429670 PMCID: PMC10908014 DOI: 10.1186/s12864-024-10024-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 01/17/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Alfalfa (Medicago sativa. L) is one of the best leguminous herbage in China and even in the world, with high nutritional and ecological value. However, one of the drawbacks of alfalfa is its sensitivity to dry conditions, which is a global agricultural problem. The objective of this study was to investigate the regulatory effects of endogenous nitric oxide (NO) on endogenous hormones and related miRNAs in alfalfa seedling leaves under drought stress. The effects of endogenous NO on endogenous hormones such as ABA, GA3, SA, and IAA in alfalfa leaves under drought stress were studied. In addition, high-throughput sequencing technology was used to identify drought-related miRNAs and endogenous NO-responsive miRNAs in alfalfa seedling leaves under drought stress. RESULT By measuring the contents of four endogenous hormones in alfalfa leaves, it was found that endogenous NO could regulate plant growth and stress resistance by inducing the metabolism levels of IAA, ABA, GA3, and SA in alfalfa, especially ABA and SA in alfalfa. In addition, small RNA sequencing technology and bioinformatics methods were used to analyze endogenous NO-responsive miRNAs under drought stress. It was found that most miRNAs were enriched in biological pathways and molecular functions related to hormones (ABA, ETH, and JA), phenylpropane metabolism, and plant stress tolerance. CONCLUSION In this study, the analysis of endogenous hormone signals and miRNAs in alfalfa leaves under PEG and PEG + cPTIO conditions provided an important basis for endogenous NO to improve the drought resistance of alfalfa at the physiological and molecular levels. It has important scientific value and practical significance for endogenous NO to improve plant drought resistance.
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Affiliation(s)
- Qian Ruan
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Pratacultural College, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China
| | - Xiaoming Bai
- Pratacultural College, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China
| | - Yizhen Wang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- College of agronomy, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China
| | - Xiaofang Zhang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China
| | - Baoqiang Wang
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China
| | - Ying Zhao
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China
| | - Xiaolin Zhu
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- College of agronomy, Gansu Agricultural University, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China
| | - Xiaohong Wei
- College of Life Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China.
- Gansu Key Laboratory of Crop Genetic Improvement and Germplasm Innovation, Lanzhou, Gansu, 730070, China.
- Gansu Key Laboratory of Arid Habitat Crop Science, Lanzhou, Gansu, 730070, China.
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Wu M, Musazade E, Yang X, Yin L, Zhao Z, Zhang Y, Lu J, Guo L. ATL Protein Family: Novel Regulators in Plant Response to Environmental Stresses. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20419-20440. [PMID: 38100516 DOI: 10.1021/acs.jafc.3c05603] [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: 12/17/2023]
Abstract
Plants actively develop intricate regulatory mechanisms to counteract the harmful effects of environmental stresses. The ubiquitin-proteasome pathway, a crucial mechanism, employs E3 ligases (E3s) to facilitate the conjugation of ubiquitin to specific target substrates, effectively marking them for proteolytic degradation. E3s play critical roles in many biological processes, including phytohormonal signaling and adaptation to environmental stresses. Arabidopsis Toxicosa en Levadura (ATL) proteins, belonging to a subfamily of RING-H2 E3s, actively modulate diverse physiological processes and plant responses to environmental stresses. Despite studies on the functions of certain ATL family members in rice and Arabidopsis, most ATLs still need more comprehensive study. This review presents an overview of the ubiquitin-proteasome system (UPS), specifically focusing on the pivotal role of E3s and associated enzymes in plant development and environmental adaptation. Our study seeks to unveil the active modulation of plant responses to environmental stresses by E3s and ATLs, emphasizing the significance of ATLs within this intricate process. By emphasizing the importance of studying the roles of E3s and ATLs, our review contributes to developing more resilient plant varieties and promoting sustainable agricultural practices while establishing a research roadmap for the future.
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Affiliation(s)
- Ming Wu
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, P.R. China
| | - Elshan Musazade
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, P.R. China
| | - Xiao Yang
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, P.R. China
| | - Le Yin
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, P.R. China
| | - Zizhu Zhao
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, P.R. China
| | - Yu Zhang
- Land Requisition Affairs Center of Jilin Province, Changchun 130062, P.R. China
| | - Jingmei Lu
- School of Life Sciences, Northeast Normal University, Changchun 130024, P.R. China
| | - Liquan Guo
- College of Life Sciences, Jilin Agricultural University, Changchun 130118, P.R. China
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Feng CH, Niu MX, Zhao S, Guo S, Yin W, Xia X, Su Y. Aspartyl tRNA-synthetase (AspRS) gene family enhances drought tolerance in poplar through BABA-PtrIBIs-PtrVOZ signaling module. BMC Genomics 2023; 24:473. [PMID: 37605104 PMCID: PMC10441740 DOI: 10.1186/s12864-023-09556-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/04/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND Drought stress is a prevalent abiotic stress that significantly hinders the growth and development of plants. According to studies, β-aminobutyric acid (BABA) can influence the ABA pathway through the AtIBI1 receptor gene to enhance cold resistance in Arabidopsis. However, the Aspartate tRNA-synthetase (AspRS) gene family, which acts as the receptor for BABA, has not yet been investigated in poplar. Particularly, it is uncertain how the AspRS gene family (PtrIBIs)r can resist drought stress after administering various concentrations of BABA to poplar. RESULTS In this study, we have identified 12 AspRS family genes and noted that poplar acquired four PtrIBI pairs through whole genome duplication (WGD). We conducted cis-action element analysis and found a significant number of stress-related action elements on different PtrIBI genes promoters. The expression of most PtrIBI genes was up-regulated under beetle and mechanical damage stresses, indicating their potential role in responding to leaf damage stress. Our results suggest that a 50 mM BABA treatment can alleviate the damage caused by drought stress in plants. Additionally, via transcriptome sequencing, we observed that the partial up-regulation of BABA receptor genes, PtrIBI2/4/6/8/11, in poplars after drought treatment. We hypothesize that poplar responds to drought stress through the BABA-PtrIBIs-PtrVOZ coordinated ABA signaling pathway. Our research provides molecular evidence for understanding how plants respond to drought stress through external application of BABA. CONCLUSIONS In summary, our study conducted genome-wide analysis of the AspRS family of P. trichocarpa and identified 12 PtrIBI genes. We utilized genomics and bioinformatics to determine various characteristics of PtrIBIs such as chromosomal localization, evolutionary tree, gene structure, gene doubling, promoter cis-elements, and expression profiles. Our study found that certain PtrIBI genes are regulated by drought, beetle, and mechanical damage implying their crucial role in enhancing poplar stress tolerance. Additionally, we observed that external application of low concentrations of BABA increased plant drought resistance under drought stress. Through the BABA-PtrIBIs-PtrVOZ signaling module, poplar plants were able to transduce ABA signaling and regulate their response to drought stress. These results suggest that the PtrIBI genes in poplar have the potential to improve drought tolerance in plants through the topical application of low concentrations of BABA.
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Affiliation(s)
- Cong-Hua Feng
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Meng-Xue Niu
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Shilei Zhao
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China
| | - Shangjing Guo
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China
| | - Weilun Yin
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Xinli Xia
- National Engineering Laboratory for Tree Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Yanyan Su
- College of Agronomy, Liaocheng University, Liaocheng, 252000, China.
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Li S, Jing X, Tan Q, Wen B, Fu X, Li D, Chen X, Xiao W, Li L. The NAC transcription factor MdNAC29 negatively regulates drought tolerance in apple. FRONTIERS IN PLANT SCIENCE 2023; 14:1173107. [PMID: 37484477 PMCID: PMC10359905 DOI: 10.3389/fpls.2023.1173107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/05/2023] [Indexed: 07/25/2023]
Abstract
Drought stress is an adverse stimulus that affects agricultural production worldwide. NAC transcription factors are involved in plant development and growth but also play different roles in the abiotic stress response. Here, we isolated the apple MdNAC29 gene and investigated its role in regulating drought tolerance. Subcellular localization experiments showed that MdNAC29 was localized to the nucleus and transcription was induced by the PEG treatment. Over-expression of MdNAC29 reduced drought tolerance in apple plants, calli, and tobacco, and exhibited higher relative conductivity, malondialdehyde (MDA) content, and lower chlorophyll content under drought stress. The transcriptomic analyses revealed that MdNAC29 reduced drought resistance by modulating the expression of photosynthesis and leaf senescence-related genes. The qRT-PCR results showed that overexpression of MdNAC29 repressed the expression of drought-resistance genes. Yeast one-hybrid and dual-luciferase assays demonstrated that MdNAC29 directly repressed MdDREB2A expression. Moreover, the yeast two-hybrid and bimolecular fluorescence complementation assays demonstrated that MdNAC29 interacted with the MdPP2-B10 (F-box protein), which responded to drought stress, and MdPP2-B10 enhanced the repressive effect of MdNAC29 on the transcriptional activity of the MdDREB2A. Taken together, our results indicate that MdNAC29 is a negative regulator of drought resistance, and provide a theoretical basis for further molecular mechanism research.
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Affiliation(s)
- Sen Li
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Xiuli Jing
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Qiuping Tan
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Binbin Wen
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Xiling Fu
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Dongmei Li
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Xiude Chen
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Wei Xiao
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
| | - Ling Li
- College of Horticulture Science and Engineering, Shandong Agricultural University, Tai’an, China
- State Key Laboratory of Crop Biology, Shandong Agricultural University, Tai’an, China
- Shandong Collaborative Innovation Center for Fruit and Vegetable Production with High Quality and Efficiency, Shandong Agricultural University, Tai’an, China
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Saxena H, Negi H, Sharma B. Role of F-box E3-ubiquitin ligases in plant development and stress responses. PLANT CELL REPORTS 2023:10.1007/s00299-023-03023-8. [PMID: 37195503 DOI: 10.1007/s00299-023-03023-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Accepted: 04/27/2023] [Indexed: 05/18/2023]
Abstract
KEY MESSAGE F-box E3-ubiquitin ligases regulate critical biological processes in plant development and stress responses. Future research could elucidate why and how plants have acquired a large number of F-box genes. The ubiquitin-proteasome system (UPS) is a predominant regulatory mechanism employed by plants to maintain the protein turnover in the cells and involves the interplay of three classes of enzymes, E1 (ubiquitin-activating), E2 (ubiquitin-conjugating), and E3 ligases. The diverse and most prominent protein family among eukaryotes, F-box proteins, are a vital component of the multi-subunit SCF (Skp1-Cullin 1-F-box) complex among E3 ligases. Several F-box proteins with multifarious functions in different plant systems have evolved rapidly over time within closely related species, but only a small part has been characterized. We need to advance our understanding of substrate-recognition regulation and the involvement of F-box proteins in biological processes and environmental adaptation. This review presents a background of E3 ligases with particular emphasis on the F-box proteins, their structural assembly, and their mechanism of action during substrate recognition. We discuss how the F-box proteins regulate and participate in the signaling mechanisms of plant development and environmental responses. We highlight an urgent need for research on the molecular basis of the F-box E3-ubiquitin ligases in plant physiology, systems biology, and biotechnology. Further, the developments and outlooks of the potential technologies targeting the E3-ubiquitin ligases for developing crop improvement strategies have been discussed.
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Affiliation(s)
- Harshita Saxena
- Institute of Plant Breeding, Genetics, and Genomics, University of Georgia Griffin Campus, 1109 Experiment Street, Griffin, GA, 30223, USA
| | - Harshita Negi
- Department of Biological Sciences, University of South Carolina, 715 Sumter Street, Columbia, SC, 29208, USA
| | - Bhaskar Sharma
- School of Life and Environmental Sciences, Deakin University, Geelong Waurn Ponds Campus, Geelong, VIC, 3216, Australia.
- Department of Botany and Plant Sciences, University of California-Riverside, Riverside, CA, 92521, USA.
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Thabet SG, Alomari DZ, Börner A, Brinch-Pedersen H, Alqudah AM. Elucidating the genetic architecture controlling antioxidant status and ionic balance in barley under salt stress. PLANT MOLECULAR BIOLOGY 2022; 110:287-300. [PMID: 35918559 DOI: 10.1007/s11103-022-01302-8] [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: 01/20/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Association genetic analysis empowered us to identify candidate genes underlying natural variation of morpho-physiological, antioxidants, and grain yield-related traits in barley. Novel intriguing genomic regions were identified and dissected. Salinity stress is one of the abiotic stresses that influence the morpho-physiological, antioxidants, and yield-related traits in crop plants. The plants of a core set of 138 diverse barley accessions were analyzed after exposure to salt stress under field conditions during the reproductive phase. A genome-wide association scan (GWAS) was then conducted using 19,276 single nucleotide polymorphisms (SNPs) to uncover the genetic basis of morpho-physiological and grain-related traits. A wide range of responses to salt stress by the accessions was explored in the current study. GWAS detected 263 significantly associated SNPs with the antioxidants, K+/Na+ content ratio, and agronomic traits. Five genomic regions harbored interesting putative candidate genes within LD ± 1.2 Mbp. Choromosome 2H harbored many candidate genes associated with the antioxidants ascorbic acid (AsA) and glutathione (GSH), such as superoxide dismutase (SOD), ascorbate peroxidase (APX), and glutathione reductase (GR), under salt stress. Markedly, an A:C SNP at 153,773,211 bp on chromosome 7H is located inside the gene HORVU.MOREX.r3.7HG0676830 (153,772,300-153,774,057 bp) that was annotated as L-gulonolactone oxidase, regulating the natural variation of SOD_S and APX_S. The allelic variation at this SNP reveals a negative selection of accessions carrying the C allele, predominantly found in six-rowed spring landraces originating from Far-, Near-East, and central Asia carrying photoperiod sensitive alleles having lower activity of enzymatic antioxidants. The SNP-trait associations detected in the current study constitute a benchmark for developing molecular selection tools for antioxidant compound selection in barley.
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Affiliation(s)
- Samar G Thabet
- Department of Botany, Faculty of Science, Fayoum University, 63514, Fayoum, Egypt
| | - Dalia Z Alomari
- Department of Agroecology, Aarhus University, Flakkebjerg, Forsøgsvej 1, 4200, Slagelse, Denmark
| | - Andreas Börner
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), OT Gatersleben, Corrensstr 3, 06466, Seeland, Germany
| | - Henrik Brinch-Pedersen
- Department of Agroecology, Aarhus University, Flakkebjerg, Forsøgsvej 1, 4200, Slagelse, Denmark
| | - Ahmad M Alqudah
- Department of Agroecology, Aarhus University, Flakkebjerg, Forsøgsvej 1, 4200, Slagelse, Denmark.
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9
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Singh M, Singh A, Yadav N, Yadav DK. Current perspectives of ubiquitination and SUMOylation in abiotic stress tolerance in plants. FRONTIERS IN PLANT SCIENCE 2022; 13:993194. [PMID: 36212351 PMCID: PMC9533872 DOI: 10.3389/fpls.2022.993194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/16/2022] [Indexed: 06/16/2023]
Abstract
Post-translational modification (PTM) is a critical and rapid mechanism to regulate all the major cellular processes through the modification of diverse protein substrates. Substrate-specific covalent attachment of ubiquitin and Small Ubiquitin-Like Modifier (SUMO) with the target proteins, known as ubiquitination and SUMOylation, respectively, are crucial PTMs that regulate almost every process in the cell by modulating the stability and fidelity of the proteins. Ubiquitination and SUMOylation play a very significant role to provide tolerance to the plants in adverse environmental conditions by activating/deactivating the pre-existing proteins to a great extent. We reviewed the importance of ubiquitination and SUMOylation in plants, implicating its prospects in various abiotic stress regulations. An exhaustive study of molecular mechanisms of ubiquitination and SUMOylation of plant proteins and their role will contribute to the understanding of physiology underlying mitigation of the abiotic stresses and survival in plants. It will be helpful to strategize the improvement of crops for abiotic stress tolerance.
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Affiliation(s)
- Madhavi Singh
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
| | - Ananya Singh
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
| | - Neelam Yadav
- Department of Botany, University of Allahabad, Prayagraj, India
| | - Dinesh Kumar Yadav
- Plant Molecular Biology and Genetic Engineering Laboratory, Department of Botany, University of Allahabad, Prayagraj, India
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10
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Amoanimaa-Dede H, Shao Z, Su C, Yeboah A, Zhu H. Genome-wide identification and characterization of F-box family proteins in sweet potato and its expression analysis under abiotic stress. Gene 2022; 817:146191. [PMID: 35026290 DOI: 10.1016/j.gene.2022.146191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 10/26/2021] [Accepted: 12/06/2021] [Indexed: 11/04/2022]
Abstract
In this study, genome-wide characterization of F-box proteins in sweet potato yielded 243 IbFBX genes, unevenly distributed on the 15 chromosomes of sweet potato. Gene duplication analysis suggested segmental duplication as the principal factor influencing the expansive evolution of IbFBX genes in sweet potato. Phylogenetic analysis clustered F-box proteins in sweet potato, Arabidopsis, and rice into six clades (I-VI). Gene structure analysis of the IbFBX genes revealed that most of the genes within the same clade were highly conserved. Expression profiles of IbFBX family genes in 9 different tissues and under stress conditions revealed that the IbFBXs were highly upregulated or downregulated in response to salt and drought stress, suggesting their significant roles in abiotic stress response and adaptation. Knowledge of the diverse functions and expression patterns of IbFBXs presents a solid theoretical basis for annotating the functions of IbFBXs and further facilitate the molecular breeding of sweet potato.
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Affiliation(s)
- Hanna Amoanimaa-Dede
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, Guangdong, PR China
| | - Zhengwei Shao
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, Guangdong, PR China
| | - Chuntao Su
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, Guangdong, PR China
| | - Akwasi Yeboah
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, Guangdong, PR China
| | - Hongbo Zhu
- Department of Biotechnology, College of Coastal Agricultural Sciences, Guangdong Ocean University, No. 1 Haida Road, Mazhang District, Zhanjiang 524088, Guangdong, PR China.
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11
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Li X, Zhao L, Zhang H, Liu Q, Zhai H, Zhao N, Gao S, He S. Genome-Wide Identification and Characterization of CDPK Family Reveal Their Involvements in Growth and Development and Abiotic Stress in Sweet Potato and Its Two Diploid Relatives. Int J Mol Sci 2022; 23:ijms23063088. [PMID: 35328509 PMCID: PMC8952862 DOI: 10.3390/ijms23063088] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/03/2022] [Accepted: 03/09/2022] [Indexed: 11/16/2022] Open
Abstract
Calcium-dependent protein kinase (CDPKs) is one of the calcium-sensing proteins in plants. They are likely to play important roles in growth and development and abiotic stress responses. However, these functions have not been explored in sweet potato. In this study, we identified 39 CDPKs in cultivated hexaploid sweet potato (Ipomoea batatas, 2n = 6x = 90), 35 CDPKs in diploid relative Ipomoea trifida (2n = 2x = 30), and 35 CDPKs in Ipomoea triloba (2n = 2x = 30) via genome structure analysis and phylogenetic characterization, respectively. The protein physiological property, chromosome localization, phylogenetic relationship, gene structure, promoter cis-acting regulatory elements, and protein interaction network were systematically investigated to explore the possible roles of homologous CDPKs in the growth and development and abiotic stress responses of sweet potato. The expression profiles of the identified CDPKs in different tissues and treatments revealed tissue specificity and various expression patterns in sweet potato and its two diploid relatives, supporting the difference in the evolutionary trajectories of hexaploid sweet potato. These results are a critical first step in understanding the functions of sweet potato CDPK genes and provide more candidate genes for improving yield and abiotic stress tolerance in cultivated sweet potato.
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Affiliation(s)
- Xu Li
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
- Sanya Institute of China Agricultural University, Hainan 572025, China
| | - Limeng Zhao
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
| | - Huan Zhang
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
- Sanya Institute of China Agricultural University, Hainan 572025, China
| | - Qingchang Liu
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
| | - Hong Zhai
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
| | - Ning Zhao
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
| | - Shaopei Gao
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
| | - Shaozhen He
- Key Laboratory of Sweet Potato Biology and Biotechnology, Ministry of Agriculture and Rural Affairs/Beijing Key Laboratory of Crop Genetic Improvement/Laboratory of Crop Heterosis & Utilization and Joint Laboratory for International Cooperation in Crop Molecular Breeding, Ministry of Education, College of Agronomy & Biotechnology, China Agricultural University, Beijing 100193, China; (X.L.); (L.Z.); (H.Z.); (Q.L.); (H.Z.); (N.Z.); (S.G.)
- Sanya Institute of China Agricultural University, Hainan 572025, China
- Correspondence: ; Tel./Fax: +86-010-6273-2559
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12
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Krämer M, Dörfer E, Hickl D, Bellin L, Scherer V, Möhlmann T. Cytidine Triphosphate Synthase Four From Arabidopsis thaliana Attenuates Drought Stress Effects. FRONTIERS IN PLANT SCIENCE 2022; 13:842156. [PMID: 35360303 PMCID: PMC8960734 DOI: 10.3389/fpls.2022.842156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
Cytidine triphosphate synthase (CTPS) catalyzes the final step in pyrimidine de novo synthesis. In Arabidopsis, this protein family consists of five members (CTPS1-5), and all of them localize to the cytosol. Specifically, CTPS4 showed a massive upregulation of transcript levels during abiotic stress, in line with increased staining of CTPS4 promoter:GUS lines in hypocotyl, root and to lesser extend leaf tissues. In a setup to study progressive drought stress, CTPS4 knockout mutants accumulated less fresh and dry weight at days 5-7 and showed impaired ability to recover from this stress after 3 days of rewatering. Surprisingly, a thorough physiological characterization of corresponding plants only revealed alterations in assimilation and accumulation of soluble sugars including those related to drought stress in the mutant. Bimolecular fluorescence complementation (BiFC) studies indicated the interaction of CTPS4 with other isoforms, possibly affecting cytoophidia (filaments formed by CTPS formation. Although the function of these structures has not been thoroughly investigated in plants, altered enzyme activity and effects on cell structure are reported in other organisms. CTPS activity is required for cell cycle progression and growth. Furthermore, drought can lead to the accumulation of reactive oxygen species (ROS) and by this, to DNA damage. We hypothesize that effects on the cell cycle or DNA repair might be relevant for the observed impaired reduced drought stress tolerance of CTPS4 mutants.
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13
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Al-Saharin R, Hellmann H, Mooney S. Plant E3 Ligases and Their Role in Abiotic Stress Response. Cells 2022; 11:cells11050890. [PMID: 35269512 PMCID: PMC8909703 DOI: 10.3390/cells11050890] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/24/2022] [Accepted: 03/02/2022] [Indexed: 11/16/2022] Open
Abstract
Plants, as sessile organisms, have limited means to cope with environmental changes. Consequently, they have developed complex regulatory systems to ameliorate abiotic stresses im-posed by environmental changes. One such system is the ubiquitin proteasome pathway, which utilizes E3 ligases to target proteins for proteolytic degradation via the 26S proteasome. Plants ex-press a plethora of E3 ligases that are categorized into four major groups depending on their structure. They are involved in many biological and developmental processes in plants, such as DNA repair, photomorphogenesis, phytohormones signaling, and biotic stress. Moreover, many E3 ligase targets are proteins involved in abiotic stress responses, such as salt, drought, heat, and cold. In this review, we will provide a comprehensive overview of E3 ligases and their substrates that have been connected with abiotic stress in order to illustrate the diversity and complexity of how this pathway enables plant survival under stress conditions.
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Affiliation(s)
- Raed Al-Saharin
- Department of Applied Biology, Tafila Technical University, At-Tafilah 66110, Jordan
- Correspondence:
| | - Hanjo Hellmann
- School of Biological Sciences, Washington State University, Pullman, WA 99163, USA; (H.H.); (S.M.)
| | - Sutton Mooney
- School of Biological Sciences, Washington State University, Pullman, WA 99163, USA; (H.H.); (S.M.)
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14
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Mishra DK, Srivastava R, Pandey BK, Verma PC, Sawant SV. Identification and validation of the wound and insect bite early inducible promoter from Arabidopsis thaliana. 3 Biotech 2022; 12:74. [PMID: 35251877 PMCID: PMC8861216 DOI: 10.1007/s13205-022-03143-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/07/2022] [Indexed: 11/01/2022] Open
Abstract
A wound-inducible promoter facilitates the regulated gene expression at the targeted site during the time of mechanical stress or infestation by the pathogen. The present work has aimed to identify a wound-inducible promoter that expresses at early time points preceding wound-stress treatment in Arabidopsis thaliana. The computational analysis of microarray data (GSE5627) resulted in the identification of five early inducible genes, viz., AT1G17380, AT1G80440, AT2G43530, AT3G48360, and AT5G13220. The RT-PCR analysis showed AT5G13220 (JASMONATE-ASSOCIATED 1) gene induced at a significantly higher level post 30 min of wounding. Thus, the promoter of the highly induced and early expressed wound-inducible gene, AT5G13220 (named PW220), was characterized by fusing with β-glucuronidase (gusA) reporter or Cry1EC genes. The fluorometric analysis and histochemical staining of the gusA gene and quantitative estimation of Cry1EC protein in Nicotiana tabacum transgenic lines confirmed wound-induced expression characteristic of the selected promoter. Insect bioassay suggested that wound-inducible and constitutive expression of Cry1EC protein in transgenic lines showed a similar level of protection against different instar Spodoptera litura larvae. Furthermore, we identified that abscisic acid influenced the wound-specific expression of the selected PW220 promoter in the transgenic lines, which correlates with the presence of conserved cis-regulatory elements associated with dehydration and abscisic acid responses. Altogether, our results suggested that the wound-inducible promoter PW220 provides an excellent alternative for developing insect-tolerant transgenic crops in the future. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-022-03143-0.
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Affiliation(s)
- Devesh Kumar Mishra
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India ,Present Address: Department of Botany. School of Applied Sciences, Om Sterling Global University, Hisar, Haryana 125001 India
| | - Rakesh Srivastava
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India
| | - Bhoopendra K. Pandey
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India
| | - Praveen Chandra Verma
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India
| | - Samir Vishwanath Sawant
- grid.417642.20000 0000 9068 0476Molecular Biology and Biotechnology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, Uttar Pradesh 226001 India ,grid.469887.c0000 0004 7744 2771AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002 India
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15
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Li BW, Gao S, Yang ZM, Song JB. The F-box E3 ubiquitin ligase AtSDR is involved in salt and drought stress responses in Arabidopsis. Gene 2022; 809:146011. [PMID: 34655724 DOI: 10.1016/j.gene.2021.146011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/24/2021] [Accepted: 10/11/2021] [Indexed: 11/04/2022]
Abstract
F-box protein genes have been shown to play vital roles in plant development and stress respones. In Arabidopsis, there are more than 600 F-box proteins, and most of their functions are unclear. The present study shows that the F-box (SKP1-Cullin/CDC53-F-box) gene At5g15710 (Salt and Drought Responsiveness, SDR) is involved in abiotic stress responses in Arabidopsis. SDR is expressed in all tissues of Arabidopsis and is upregulated by salt and heat stresses and ABA treatment but downregulated by drought stress. Subcellular localization analysis shows that the SDR protein colocalizes with the nucleus. 35S:AntiSDR plants are hypersensitive to salt stress, but 35S:SDR plants display a salt-tolerant phenotype. Furthermore, 35S:SDR plants are hypersensitive to drought stress, while 35S:AntiSDR plants are significantly more drought tolerant. Overall, our results suggest that SDR is involved in salt and drought stress responses in Arabidopsis.
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Affiliation(s)
- Bo Wen Li
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China; Department of Neurosurgery, The First People's Hospital of Changzhou, Changzhou 213003 , PR China
| | - Shuai Gao
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas, College of Horticulture Science, Zhejiang A&F University, Hangzhou, Zhejiang 311300, PR China
| | - Zhi Min Yang
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Jian Bo Song
- College of Biological Sciences and Engineering, Jiangxi Agricultural University, Nanchang 330045, PR China.
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16
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Muhammad Aslam M, Waseem M, Jakada BH, Okal EJ, Lei Z, Saqib HSA, Yuan W, Xu W, Zhang Q. Mechanisms of Abscisic Acid-Mediated Drought Stress Responses in Plants. Int J Mol Sci 2022; 23:ijms23031084. [PMID: 35163008 PMCID: PMC8835272 DOI: 10.3390/ijms23031084] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/10/2022] [Accepted: 01/13/2022] [Indexed: 12/11/2022] Open
Abstract
Drought is one of the major constraints to rain-fed agricultural production, especially under climate change conditions. Plants evolved an array of adaptive strategies that perceive stress stimuli and respond to these stress signals through specific mechanisms. Abscisic acid (ABA) is a premier signal for plants to respond to drought and plays a critical role in plant growth and development. ABA triggers a variety of physiological processes such as stomatal closure, root system modulation, organizing soil microbial communities, activation of transcriptional and post-transcriptional gene expression, and metabolic alterations. Thus, understanding the mechanisms of ABA-mediated drought responses in plants is critical for ensuring crop yield and global food security. In this review, we highlighted how plants adjust ABA perception, transcriptional levels of ABA- and drought-related genes, and regulation of metabolic pathways to alter drought stress responses at both cellular and the whole plant level. Understanding the synergetic role of drought and ABA will strengthen our knowledge to develop stress-resilient crops through integrated advanced biotechnology approaches. This review will elaborate on ABA-mediated drought responses at genetic, biochemical, and molecular levels in plants, which is critical for advancement in stress biology research.
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Affiliation(s)
- Mehtab Muhammad Aslam
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Muhammad Waseem
- Department of Botany, University of Narowal, Narowal 51600, Pakistan;
- College of Horticulture, Hainan University, Haikou 570100, China
| | - Bello Hassan Jakada
- Key Laboratory of Genetics, Breeding and Multiple Utilization of Crops, College of Life Science, Fujian Agriculture and Forestry University, Ministry of Education, Fuzhou 350002, China;
| | - Eyalira Jacob Okal
- Center for Mountain Futures, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;
| | - Zuliang Lei
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
| | - Hafiz Sohaib Ahmad Saqib
- Guangdong Provincial Key Laboratory of Marine Biology, College of Science, Shantou University, Shantou 515063, China;
| | - Wei Yuan
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
- Correspondence: (W.Y.); (Q.Z.)
| | - Weifeng Xu
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- College of Agriculture, Yangzhou University, Yangzhou 225009, China
| | - Qian Zhang
- Joint International Research Laboratory of Water and Nutrient in Crop and College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (M.M.A.); (Z.L.); (W.X.)
- Correspondence: (W.Y.); (Q.Z.)
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17
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Xu H, Wang C, Shao G, Wu S, Liu P, Cao P, Jiang P, Wang S, Zhu H, Lin X, Tauqeer A, Lin Y, Chen W, Huang W, Wen Q, Chang J, Zhong F, Wu S. The reference genome and full-length transcriptome of pakchoi provide insights into cuticle formation and heat adaption. HORTICULTURE RESEARCH 2022; 9:uhac123. [PMID: 35949690 PMCID: PMC9358696 DOI: 10.1093/hr/uhac123] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 05/17/2022] [Indexed: 05/20/2023]
Abstract
Brassica rapa includes various vegetables with high economic value. Among them, green petiole type pakchoi (B. rapa ssp. chinensis) is one of the major vegetables grown in southern China. Compared with other B. rapa varieties, green petiole type pakchoi shows a higher level of heat resistance, which is partially derived from the rich epicuticular wax. Here we sequence a high-quality genome of green petiole type pakchoi, which has been widely used as the parent in breeding. Our results reveal that long terminal repeat retrotransposon insertion plays critical roles in promoting the genome expansion and transcriptional diversity of pakchoi genes through preferential insertions, particularly in cuticle biosynthetic genes. After whole-genome triplication, over-retained pakchoi genes escape stringent selection pressure, and among them a set of cuticle-related genes are retained. Using bulked-segregant analysis of a heat-resistant pakchoi cultivar, we identify a frame-shift deletion across the third exon and the subsequent intron of BrcCER1 in candidate regions. Using Nanopore long-read sequencing, we analyze the full-length transcriptome of two pakchoi cultivars with opposite sensitivity to high temperature. We find that the heat-resistant pakchoi cultivar can mitigate heat-caused leaf damage by activating an unfolded protein response, as well as by inhibiting chloroplast development and energy metabolism, which are presumably mediated by both transcriptional regulation and splicing factors. Our study provides valuable resources for Brassica functional genomics and breeding research, and deepens our understanding of plant stress resistance.
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Affiliation(s)
| | | | | | - Shasha Wu
- College of Life Sciences & College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Peng Liu
- College of Life Sciences & College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ping Cao
- Fujian Jinpin Agricultural Technology Co., Ltd, Fuzhou 350000, China
| | - Peng Jiang
- College of Life Sciences & College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shubin Wang
- College of Life Sciences & College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hong Zhu
- Fujian Seed Chief Station, Fuzhou 350003, China
| | - Xiao Lin
- Fujian Jinpin Agricultural Technology Co., Ltd, Fuzhou 350000, China
| | - Arfa Tauqeer
- College of Life Sciences & College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yizhang Lin
- Fujian Jinpin Agricultural Technology Co., Ltd, Fuzhou 350000, China
| | - Wei Chen
- Fujian Seed Chief Station, Fuzhou 350003, China
| | | | - Qingfang Wen
- Crop Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Jiang Chang
- College of Life Sciences & College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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18
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Kim H, Song E, Kim Y, Choi E, Hwang J, Lee JH. Loss-of-function of ARABIDOPSIS F-BOX PROTEIN HYPERSENSITIVE TO ABA 1 enhances drought tolerance and delays germination. PHYSIOLOGIA PLANTARUM 2021; 173:2376-2389. [PMID: 34687457 DOI: 10.1111/ppl.13588] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
ABA is a phytohormone involved in diverse plant events such as seed germination and drought response. An F-box protein functions as a substrate receptor of the SCF complex and is responsible for ubiquitination of target proteins, triggering their subsequent degradation mediated by ubiquitin proteasome system. Here, we have isolated a gene named ARABIDOPSIS F-BOX PROTEIN HYPERSENSITIVE TO ABA 1 (AFA1) that was upregulated by ABA. AFA1 interacted with adaptor proteins of the SCF complex, implying its role as a substrate receptor of the complex. Its loss of function mutants, afa1 seedlings, exhibited ABA-hypersensitivity, including delayed germination in the presence of ABA. Moreover, loss of AFA1 led to increased drought tolerance in adult plants. Microarray data with ABA treatments indicated that 129 and 219 genes were upregulated or downregulated, respectively, by more than three times in afa1 relative to the wild type. Among the upregulated genes in afa1, the expression of 28.7% was induced by more than three times in the presence of ABA, while only 9.3% was repressed to the same extent. These data indicate that AFA1 is involved in the downregulation of many ABA-inducible genes, in accordance with the ABA-hypersensitive phenotype of afa1. Epistasis analysis showed that AFA1 could play a role upstream of ABI4 and ABI5 in the ABA signaling for germination inhibition. Collectively, our findings suggest that AFA1 is a novel F-box protein that negatively regulates ABA signaling.
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Affiliation(s)
- Hani Kim
- Department of Biology Education, Pusan National University, Busan, Republic of Korea
- Department of Integrated Biological Science, Pusan National University, Busan, Republic of Korea
| | - Eunyoung Song
- Department of Biology Education, Pusan National University, Busan, Republic of Korea
| | - Yeojin Kim
- Department of Biology Education, Pusan National University, Busan, Republic of Korea
| | - Eunsil Choi
- Department of Microbiology, Pusan National University, Busan, Republic of Korea
| | - Jihwan Hwang
- Department of Microbiology, Pusan National University, Busan, Republic of Korea
| | - Jae-Hoon Lee
- Department of Biology Education, Pusan National University, Busan, Republic of Korea
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19
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Eltaher S, Mourad AMI, Baenziger PS, Wegulo S, Belamkar V, Sallam A. Identification and Validation of High LD Hotspot Genomic Regions Harboring Stem Rust Resistant Genes on 1B, 2A ( Sr38), and 7B Chromosomes in Wheat. Front Genet 2021; 12:749675. [PMID: 34659366 PMCID: PMC8517078 DOI: 10.3389/fgene.2021.749675] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/13/2021] [Indexed: 12/02/2022] Open
Abstract
Stem rust caused by Puccinia graminis f. sp. tritici Eriks. is an important disease of common wheat globally. The production and cultivation of genetically resistant cultivars are one of the most successful and environmentally friendly ways to protect wheat against fungal pathogens. Seedling screening and genome-wide association study (GWAS) were used to determine the genetic diversity of wheat genotypes obtained on stem rust resistance loci. At the seedling stage, the reaction of the common stem rust race QFCSC in Nebraska was measured in a set of 212 genotypes from F3:6 lines. The results indicated that 184 genotypes (86.8%) had different degrees of resistance to this common race. While 28 genotypes (13.2%) were susceptible to stem rust. A set of 11,911 single-nucleotide polymorphism (SNP) markers was used to perform GWAS which detected 84 significant marker-trait associations (MTAs) with SNPs located on chromosomes 1B, 2A, 2B, 7B and an unknown chromosome. Promising high linkage disequilibrium (LD) genomic regions were found in all chromosomes except 2B which suggested they include candidate genes controlling stem rust resistance. Highly significant LD was found among these 59 significant SNPs on chromosome 2A and 12 significant SNPs with an unknown chromosomal position. The LD analysis between SNPs located on 2A and Sr38 gene reveal high significant LD genomic regions which was previously reported. To select the most promising stem rust resistant genotypes, a new approach was suggested based on four criteria including, phenotypic selection, number of resistant allele(s), the genetic distance among the selected parents, and number of the different resistant allele(s) in the candidate crosses. As a result, 23 genotypes were considered as the most suitable parents for crossing to produce highly resistant stem rust genotypes against the QFCSC.
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Affiliation(s)
- Shamseldeen Eltaher
- Department of Plant Biotechnology, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City (USC), Sadat, Egypt
| | - Amira M I Mourad
- Department of Agronomy, Faculty of Agriculture, Assiut University, Assiut, Egypt
| | - P Stephen Baenziger
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Stephen Wegulo
- Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Vikas Belamkar
- Department of Agronomy and Horticulture, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Ahmed Sallam
- Department of Genetics, Faculty of Agriculture, Assiut University, Assiut, Egypt
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20
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Lin N, Landis JB, Sun Y, Huang X, Zhang X, Liu Q, Zhang H, Sun H, Wang H, Deng T. Demographic history and local adaptation of Myripnois dioica (Asteraceae) provide insight on plant evolution in northern China flora. Ecol Evol 2021; 11:8000-8013. [PMID: 34188867 PMCID: PMC8216978 DOI: 10.1002/ece3.7628] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 03/28/2021] [Accepted: 04/06/2021] [Indexed: 11/09/2022] Open
Abstract
The flora of northern China forms the main part of the Sino-Japanese floristic region and is located in a south-north vegetative transect in East Asia. Phylogeographic studies have demonstrated that an arid belt in this region has promoted divergence of plants in East Asia. However, little is known about how plants that are restricted to the arid belt of flora in northern China respond to climatic oscillation and environmental change. Here, we used genomic-level data of Myripnois dioica across its distribution as a representative of northern China flora to reconstruct plant demographic history, examine local adaptation related to environmental disequilibrium, and investigate the factors related to effective population size change. Our results indicate M. dioica originated from the northern area and expanded to the southern area, with the Taihang Mountains serving as a physical barrier promoting population divergence. Genome-wide evidence found strong correlation between genomic variation and environmental factors, specifically signatures associated with local adaptation to drought stress in heterogeneous environments. Multiple linear regression analyses revealed joint effects of population age, mean temperature of coldest quarter, and precipitation of wettest month on effective population size (Ne). Our current study uses M. dioica as a case for providing new insights into the evolutionary history and local adaptation of northern China flora and provides qualitative strategies for plant conservation.
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Affiliation(s)
- Nan Lin
- CAS Key Laboratory for Plant Diversity and Biogeography of East AsiaKunming Institute of BotanyChinese Academy of SciencesKunmingChina
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty AgricultureWuhan Botanical GardenChinese Academy of SciencesWuhanChina
- College of Life ScienceHenan Agricultural UniversityZhengzhouChina
| | - Jacob B. Landis
- School of Integrative Plant ScienceSection of Plant Biology and the L.H. Bailey HortoriumCornell UniversityIthacaNYUSA
| | - Yanxia Sun
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty AgricultureWuhan Botanical GardenChinese Academy of SciencesWuhanChina
- Center of Conservation BiologyCore Botanical GardensChinese Academy of SciencesWuhanChina
| | - Xianhan Huang
- CAS Key Laboratory for Plant Diversity and Biogeography of East AsiaKunming Institute of BotanyChinese Academy of SciencesKunmingChina
| | - Xu Zhang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty AgricultureWuhan Botanical GardenChinese Academy of SciencesWuhanChina
| | - Qun Liu
- School of Life SciencesYunnan Normal UniversityKunmingChina
| | - Huajie Zhang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty AgricultureWuhan Botanical GardenChinese Academy of SciencesWuhanChina
| | - Hang Sun
- CAS Key Laboratory for Plant Diversity and Biogeography of East AsiaKunming Institute of BotanyChinese Academy of SciencesKunmingChina
| | - Hengchang Wang
- CAS Key Laboratory of Plant Germplasm Enhancement and Specialty AgricultureWuhan Botanical GardenChinese Academy of SciencesWuhanChina
- Center of Conservation BiologyCore Botanical GardensChinese Academy of SciencesWuhanChina
| | - Tao Deng
- CAS Key Laboratory for Plant Diversity and Biogeography of East AsiaKunming Institute of BotanyChinese Academy of SciencesKunmingChina
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21
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Sirko A, Wawrzyńska A, Brzywczy J, Sieńko M. Control of ABA Signaling and Crosstalk with Other Hormones by the Selective Degradation of Pathway Components. Int J Mol Sci 2021; 22:4638. [PMID: 33924944 PMCID: PMC8125534 DOI: 10.3390/ijms22094638] [Citation(s) in RCA: 12] [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: 04/08/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 12/13/2022] Open
Abstract
A rapid and appropriate genetic and metabolic acclimation, which is crucial for plants' survival in a changing environment, is maintained due to the coordinated action of plant hormones and cellular degradation mechanisms influencing proteostasis. The plant hormone abscisic acid (ABA) rapidly accumulates in plants in response to environmental stress and plays a pivotal role in the reaction to various stimuli. Increasing evidence demonstrates a significant role of autophagy in controlling ABA signaling. This field has been extensively investigated and new discoveries are constantly being provided. We present updated information on the components of the ABA signaling pathway, particularly on transcription factors modified by different E3 ligases. Then, we focus on the role of selective autophagy in ABA pathway control and review novel evidence on the involvement of autophagy in different parts of the ABA signaling pathway that are important for crosstalk with other hormones, particularly cytokinins and brassinosteroids.
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Affiliation(s)
- Agnieszka Sirko
- Laboratory of Plant Protein Homeostasis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, ul. Pawinskiego 5A, 02-106 Warsaw, Poland; (J.B.); (M.S.)
| | - Anna Wawrzyńska
- Laboratory of Plant Protein Homeostasis, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, ul. Pawinskiego 5A, 02-106 Warsaw, Poland; (J.B.); (M.S.)
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22
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Ghosh D, Chakraborty S. Molecular interplay between phytohormones and geminiviruses: a saga of a never-ending arms race. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2903-2917. [PMID: 33577676 DOI: 10.1093/jxb/erab061] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 02/06/2021] [Indexed: 05/14/2023]
Abstract
Geminiviruses can infect a wide range of plant hosts worldwide and have hence become an emerging global agroeconomic threat. The association of these viruses with satellite molecules and highly efficient insect vectors such as whiteflies further prime their devastating impacts. Plants elicit a strong antiviral immune response to restrict the invasion of these destructive pathogens. Phytohormones help plants to mount this response and occupy a key position in combating these biotrophs. These defense hormones not only inhibit geminiviral propagation but also hamper viral transmission by compromising the performance of their insect vectors. Nonetheless, geminiviruses have co-evolved to have a few multitasking virulence factors that readily remodel host cellular machineries to circumvent the phytohormone-mediated manifestation of the immune response. Furthermore, these obligate parasites exploit plant growth hormones to produce a cellular environment permissive for virus replication. In this review, we outline the current understanding of the roles and regulation of phytohormones in geminiviral pathogenesis.
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Affiliation(s)
- Dibyendu Ghosh
- Molecular Virology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Supriya Chakraborty
- Molecular Virology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
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Wang TJ, Huang S, Zhang A, Guo P, Liu Y, Xu C, Cong W, Liu B, Xu ZY. JMJ17-WRKY40 and HY5-ABI5 modules regulate the expression of ABA-responsive genes in Arabidopsis. THE NEW PHYTOLOGIST 2021; 230:567-584. [PMID: 33423315 DOI: 10.1111/nph.17177] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 12/25/2020] [Indexed: 05/09/2023]
Abstract
Abscisic acid (ABA) plays a crucial role in the adaptation of young seedlings to environmental stresses. However, the role of epigenetic components and core transcriptional machineries in the effect of ABA on seed germination and seedling growth remain unclear. Here, we show that a histone 3 lysine 4 (H3K4) demethylase, JMJ17, regulates the expression of ABA-responsive genes during seed germination and seedling growth. Using comparative interactomics, WRKY40, a central transcriptional repressor in ABA signaling, was shown to interact with JMJ17. WRKY40 facilitates the recruitment of JMJ17 to the ABI5 chromatin, which removes gene activation marks (H3K4me3) from the ABI5 chromatin, thereby repressing its expression. Additionally, WRKY40 represses the transcriptional activation activity of HY5, which can activate ABI5 expression by directly binding to its promoter. An increase in ABA concentrations decreases the affinity of WRKY40 for the ABI5 promoter. Thus, WRKY40 and JMJ17 are released from the ABI5 chromatin, activating HY5. The accumulated ABI5 protein further shows heteromeric interaction with HY5, and thus synergistically activates its own expression. Our findings reveal a novel transcriptional switch, composed of JMJ17-WRKY40 and HY5-ABI5 modules, which regulates the ABA response during seed germination and seedling development in Arabidopsis.
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Affiliation(s)
- Tian-Jing Wang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Shuangzhan Huang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Ai Zhang
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Peng Guo
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Yutong Liu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Chunming Xu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Weixuan Cong
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Bao Liu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
| | - Zheng-Yi Xu
- Key Laboratory of Molecular Epigenetics of the Ministry of Education (MOE), Northeast Normal University, Changchun, 130024, China
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24
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Molecular Characterization, Gene Evolution and Expression Analysis of the F-Box Gene Family in Tomato ( Solanum lycopersicum). Genes (Basel) 2021; 12:genes12030417. [PMID: 33799396 PMCID: PMC7998346 DOI: 10.3390/genes12030417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/05/2021] [Accepted: 03/09/2021] [Indexed: 11/23/2022] Open
Abstract
F-box genes play an important role in the growth and development of plants, but there are few studies on its role in a plant’s response to abiotic stresses. In order to further study the functions of F-box genes in tomato (Solanum lycopersicum, Sl), a total of 139 F-box genes were identified in the whole genome of tomato using bioinformatics methods, and the basic information, transcript structure, conserved motif, cis-elements, chromosomal location, gene evolution, phylogenetic relationship, expression patterns and the expression under cold stress, drought stress, jasmonic acid (JA) treatment and salicylic acid (SA) treatment were analyzed. The results showed that SlFBX genes were distributed on 12 chromosomes of tomato and were prone to TD (tandem duplication) at the ends of chromosomes. WGD (whole genome duplication), TD, PD (proximal duplication) and TRD (transposed duplication) modes seem play an important role in the expansion and evolution of tomato SlFBX genes. The most recent divergence occurred 1.3042 million years ago, between SlFBX89 and SlFBX103. The cis-elements in SlFBX genes’ promoter regions were mainly responded to phytohormone and abiotic stress. Expression analysis based on transcriptome data and qRT-PCR (Real-time quantitative PCR) analysis of SlFBX genes showed that most SlFBX genes were differentially expressed under abiotic stress. SlFBX24 was significantly up-regulated at 12 h under cold stress. This study reported the SlFBX gene family of tomato for the first time, providing a theoretical basis for the detailed study of SlFBX genes in the future, especially the function of SlFBX genes under abiotic stress.
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25
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Nayyeripasand L, Garoosi GA, Ahmadikhah A. Genome-Wide Association Study (GWAS) to Identify Salt-Tolerance QTLs Carrying Novel Candidate Genes in Rice During Early Vegetative Stage. RICE (NEW YORK, N.Y.) 2021; 14:9. [PMID: 33420909 PMCID: PMC7797017 DOI: 10.1186/s12284-020-00433-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/07/2020] [Indexed: 05/15/2023]
Abstract
BACKGROUND Rice is considered as a salt-sensitive plant, particularly at early vegetative stage, and its production is suffered from salinity due to expansion of salt affected land in areas under cultivation. Hence, significant increase of rice productivity on salinized lands is really necessary. Today genome-wide association study (GWAS) is a method of choice for fine mapping of QTLs involved in plant responses to abiotic stresses including salinity stress at early vegetative stage. In this study using > 33,000 SNP markers we identified rice genomic regions associated to early stage salinity tolerance. Eight salinity-related traits including shoot length (SL), root length (RL), root dry weight (RDW), root fresh weight (RFW), shoot fresh weight (SFW), shoot dry weight (SDW), relative water content (RWC) and TW, and 4 derived traits including SL-R, RL-R, RDW-R and RFW-R in a diverse panel of rice were evaluated under salinity (100 mM NaCl) and normal conditions in growth chamber. Genome-wide association study (GWAS) was applied based on MLM(+Q + K) model. RESULTS Under stress conditions 151 trait-marker associations were identified that were scattered on 10 chromosomes of rice that arranged in 29 genomic regions. A genomic region on chromosome 1 (11.26 Mbp) was identified which co-located with a known QTL region SalTol1 for salinity tolerance at vegetative stage. A candidate gene (Os01g0304100) was identified in this region which encodes a cation chloride cotransporter. Furthermore, on this chromosome two other candidate genes, Os01g0624700 (24.95 Mbp) and Os01g0812000 (34.51 Mbp), were identified that encode a WRKY transcription factor (WRKY 12) and a transcriptional activator of gibberellin-dependent alpha-amylase expression (GAMyb), respectively. Also, a narrow interval on the same chromosome (40.79-42.98 Mbp) carries 12 candidate genes, some of them were not so far reported for salinity tolerance at seedling stage. Two of more interesting genes are Os01g0966000 and Os01g0963000, encoding a plasma membrane (PM) H+-ATPase and a peroxidase BP1 protein. A candidate gene was identified on chromosome 2 (Os02g0730300 at 30.4 Mbp) encoding a high affinity K+ transporter (HAK). On chromosome 6 a DnaJ-encoding gene and pseudouridine synthase gene were identified. Two novel genes on chromosome 8 including the ABI/VP1 transcription factor and retinoblastoma-related protein (RBR), and 3 novel genes on chromosome 11 including a Lox, F-box and Na+/H+ antiporter, were also identified. CONCLUSION Known or novel candidate genes in this research were identified that can be used for improvement of salinity tolerance in molecular breeding programmes of rice. Further study and identification of effective genes on salinity tolerance by the use of candidate gene-association analysis can help to precisely uncover the mechanisms of salinity tolerance at molecular level. A time dependent relationship between salt tolerance and expression level of candidate genes could be recognized.
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Affiliation(s)
- Leila Nayyeripasand
- Agricultural Biotechnology Department, Faculty of Agriculture, Imam Khomeini International University, Qazvin, Iran
| | - Ghasem Ali Garoosi
- Agricultural Biotechnology Department, Faculty of Agriculture, Imam Khomeini International University, Qazvin, Iran.
| | - Asadollah Ahmadikhah
- Department of Plant Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshi University, G.C. Velenjak, Tehran, Iran.
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26
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Rao V, Virupapuram V. Arabidopsis F-box protein At1g08710 interacts with transcriptional protein ADA2b and imparts drought stress tolerance by negatively regulating seedling growth. Biochem Biophys Res Commun 2020; 536:45-51. [PMID: 33360542 DOI: 10.1016/j.bbrc.2020.12.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 10/22/2022]
Abstract
Plants experience abiotic stresses throughout their life cycle and accordingly respond to tide over the unfavorable conditions. Plants adopt to drought stress through various molecular, biochemical, physiological and cellular processes. F-box protein subunit of the Skp1-Cullin-F-box (SCF) E3 ubiquitin ligases plays crucial role in imparting specificity for selective degradation of target proteins. Here we report the function of Arabidopsis F-box protein At1g08710 in drought stress adaptation. F-box protein is a constituent of SCF complex as it is shown interacting with ASK1 and Cullin 1. F-box protein localizes in both nucleus and membrane. F-box gene transcript is highly accumulated in root and altered in response to drought stress conditions. F-box protein interacts with a transcriptional co-activator protein ADA2b. F-box mutant plants growth is better under drought stress conditions compared to the wild type. Accumulation of H2O2 and malondialdehyde (MDA) content is reduced in mutant plants. Drought responsive genes RD29A, RD22, ABI3 expression is induced in F-box mutant plants. These results indicate F-box protein At1g08710 role in drought stress adaptation in Arabidopsis thaliana.
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Affiliation(s)
- Venkateswara Rao
- CSIR- Centre for Cellular and Molecular Biology (CCMB), Habsiguda, Hyderabad, 500007, India
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27
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Qu L, Sun M, Li X, He R, Zhong M, Luo D, Liu X, Zhao X. The Arabidopsis F-box protein FOF2 regulates ABA-mediated seed germination and drought tolerance. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 301:110643. [PMID: 33218620 DOI: 10.1016/j.plantsci.2020.110643] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 08/15/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
The phytohormone abscisic acid (ABA) plays a crucial role at various plant developmental stages, including seed germination and seedling development, and regulates stomatal aperture in response to drought. However, the underlying mechanisms are not well understood. Here, we showed that F-BOX OF FLOWERING 2 (FOF2) is induced by ABA and drought stress. Overexpression of FOF2 led to reduced ABA sensitivity during seed germination and early seedling development, whereas the fof2 mutant exhibited increased sensitivity to ABA. Molecular and genetic analyses revealed that FOF2 negatively affected ABA-mediated seed germination and early seedling development partially by repressing the expression of the ABA-signaling genes ABI3 and ABI5. Additionally, we found that FOF2-overexpressing plants exhibited increased ABA contents, enhanced ABA sensitivity during stomatal closure, and decreased water loss, thereby improving tolerance to drought stress, in contrast to the fof2 mutant. Consistent with a higher ABA content and enhanced drought tolerance, the expression of ABA- and drought-induced genes and the ABA-biosynthesis gene NCED3 was upregulated in the FOF2-overexpressing plants but downregulated in fof2 mutant in response to drought stress. Taken together, our findings revealed that FOF2 plays an important negative role in ABA-mediated seed germination and early seedling development, as well as a positive role in ABA-mediated drought tolerance.
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Affiliation(s)
- Lina Qu
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Mengsi Sun
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Xinmei Li
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Reqing He
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Ming Zhong
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Dan Luo
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China
| | - Xuanming Liu
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, China.
| | - Xiaoying Zhao
- College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, 410082, China; Shenzhen Institute, Hunan University, Shenzhen, 518057, China.
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28
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Liang J, Zheng J, Wu Z, Wang H. Strawberry FaNAC2 Enhances Tolerance to Abiotic Stress by Regulating Proline Metabolism. PLANTS (BASEL, SWITZERLAND) 2020; 9:plants9111417. [PMID: 33114021 PMCID: PMC7690739 DOI: 10.3390/plants9111417] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/17/2020] [Accepted: 10/21/2020] [Indexed: 05/28/2023]
Abstract
The quality and yields of strawberry plants are seriously affected by abiotic stress every year. NAC (NAM, ATAF, CUC) transcription factors are plant-specific, having various functions in plant development and response to stress. In our study, FaNAC2 from strawberry (Fragaria × ananassa, cultivar "Benihoppe") was isolated and found to be a member of the ATAF sub-family, belonging to the NAC family of transcription factors. FaNAC2 was strongly expressed in the shoot apical meristem and older leaves of strawberries, and was induced by cold, high salinity, and drought stress. To investigate how FaNAC2 functions in plant responses to abiotic stress, transgenic Nicotiana benthamiana plants ectopically overexpressing FaNAC2 were generated. The transgenic plants grew better under salt and cold stress, and, during simulated drought treatment, these transgenic lines not only grew better, but also showed higher seed germination rates than wild-type plants. Gene expression analysis revealed that key genes in proline biosynthesis pathways were up-regulated in FaNAC2 overexpression lines, while its catabolic pathway genes were down-regulated and proline was accumulated more with the overexpression of FaNAC2 after stress treatments. Furthermore, the gene expression of abscisic acid biosynthesis was also promoted. Our results demonstrate that FaNAC2 plays an important positive role in response to different abiotic stresses and may be further utilized to improve the stress tolerance of strawberry plants.
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Affiliation(s)
- Jiahui Liang
- Department of Fruit Science, College of Horticulture, China Agricultural University, Beijing 100193, China; (J.L.); (J.Z.)
| | - Jing Zheng
- Department of Fruit Science, College of Horticulture, China Agricultural University, Beijing 100193, China; (J.L.); (J.Z.)
| | - Ze Wu
- Key Laboratory of Landscaping Agriculture, Ministry of Agriculture and Rural Affairs, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China;
| | - Hongqing Wang
- Department of Fruit Science, College of Horticulture, China Agricultural University, Beijing 100193, China; (J.L.); (J.Z.)
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Li H, Wei C, Meng Y, Fan R, Zhao W, Wang X, Yu X, Laroche A, Kang Z, Liu D. Identification and expression analysis of some wheat F-box subfamilies during plant development and infection by Puccinia triticina. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 155:535-548. [PMID: 32836199 DOI: 10.1016/j.plaphy.2020.06.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
As one of the largest protein families in plants, F-box proteins are involved in many important cellular processes. Until now, a limited number of investigations have been conducted on wheat F-box genes due to its variable structure and large and polyploid genome. Classification, identification, structural analysis, evolutionary relationship, and chromosomal distribution of some wheat F-box genes are described in the present study. A total number of 1013 potential F-box proteins which are encoded by 409 genes was identified in wheat, and classified into 12 subfamilies based on their C-terminal domain structures. Furthermore, proteins with identical or similar C-terminal domain were clustered together. Location of 409 F-box genes was identified on all 21 wheat chromosomes but showed an uneven distribution. Segmental duplication was the main reason for the increase in the number of wheat F-box genes. Gene expression analysis based on digital PCR showed that most of the F-box genes were highly expressed in the later development stages of wheat, including the formation of spike, grain, flag leaf, and participated in drought stress (DS), heat stress (HS), and their combination (HD). Of the nine F-box genes we investigated using quantitative PCR (qPCR) following fungal pathogen infection, five were involved in wheat resistance to the infection by leaf rust pathogen and one in the susceptible response. These results provide important information on wheat F-box proteins for further functional studies, especially the proteins that played roles in response to heat and drought stresses and leaf rust pathogen infection.
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Affiliation(s)
- Huying Li
- College of Life Sciences, Hebei Agricultural University/ Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, 071001, China; College of Forestry, Shandong Agricultural University, Taian, Shangdong, 271018, China
| | - Chunru Wei
- College of Life Sciences, Hebei Agricultural University/ Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, 071001, China
| | - Yuyu Meng
- College of Life Sciences, Hebei Agricultural University/ Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, 071001, China
| | - Runqiao Fan
- College of Life Sciences, Hebei Agricultural University/ Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, 071001, China
| | - Weiquan Zhao
- Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Baoding, 071001, China
| | - Xiaodong Wang
- Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Baoding, 071001, China
| | - Xiumei Yu
- College of Life Sciences, Hebei Agricultural University/ Key Laboratory of Hebei Province for Plant Physiology and Molecular Pathology, Baoding, 071001, China; Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Baoding, 071001, China.
| | - André Laroche
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, T1J 4B1, Canada
| | - Zhensheng Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas, NWAFU, Yangling, Shaanxi, 712100, China.
| | - Daqun Liu
- Technological Innovation Center for Biological Control of Crop Diseases and Insect Pests of Hebei Province, Baoding, 071001, China.
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Liu J, Lin QF, Qi SL, Feng XJ, Han HL, Xu T, Hua XJ. The F-box protein EST1 modulates salt tolerance in Arabidopsis by regulating plasma membrane Na +/H + antiport activity. JOURNAL OF PLANT PHYSIOLOGY 2020; 251:153217. [PMID: 32574916 DOI: 10.1016/j.jplph.2020.153217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 05/26/2020] [Accepted: 05/26/2020] [Indexed: 05/10/2023]
Abstract
F-box protein, one of the building blocks of the SCF complex, functions in substrate recognition of the SCF subtype of E3 ubiquitin ligase. However, the role of F-box protein in salt stress is largely elusive in plants. Here, we report the characterization of an Arabidopsis salt-tolerant mutant est1 with significantly reduced sodium content and higher Na+/H+ antiporter activity after NaCl treatment compared to the wild-type. Over-expression of EST1 resulted in increased sensitivity to salt stress, suggesting that EST1 may act as a negative regulator for salt tolerance in Arabidopsis. EST1 encodes an F-box protein, which interacts with ASK4, ASK14, and ASK18, and is likely targeted to the endoplasmic reticulum. In addition, EST1 interacts with MKK4 and negatively regulates MKK4 protein levels and the activity of the plasma membrane Na+/H+ antiporter. Our findings demonstrate the existence of an EST1-MKK4 module that mediates salt sensitivity by regulating the activity of the plasma membrane Na+/H+ antiporter. These results provide important information for engineering salt-tolerant crops.
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Affiliation(s)
- Jie Liu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Qing Fang Lin
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Shi Lian Qi
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, Jiangsu Normal University, Xuzhou, Jiangsu, 221116, China.
| | - Xuan Jun Feng
- Maize Research Institute, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, China.
| | - Hui Ling Han
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Tao Xu
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, China.
| | - Xue Jun Hua
- Key Laboratory of Plant Secondary Metabolism and Regulation of Zhejiang Province, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, 310018, China.
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Li X, Zheng H, Wu W, Liu H, Wang J, Jia Y, Li J, Yang L, Lei L, Zou D, Zhao H. QTL Mapping and Candidate Gene Analysis for Alkali Tolerance in Japonica Rice at the bud Stage Based on Linkage Mapping and Genome-Wide Association Study. RICE (NEW YORK, N.Y.) 2020; 13:48. [PMID: 32676742 PMCID: PMC7364718 DOI: 10.1186/s12284-020-00412-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 07/08/2020] [Indexed: 05/18/2023]
Abstract
BACKGROUND Salinity-alkalinity stress is one of the major factors limiting rice production. Damage caused by alkaline salt stress is more severe than that caused by neutral salt stress. Alkali tolerance at the bud stage in rice directly affects seedling survival and final yield when using the direct seeding cultivation model. However, genetic resources (QTLs and genes) for rice breeders to improve alkali tolerance are limited. In this study, we combined linkage mapping and a genome-wide association study (GWAS) to analyze the genetic structure of this trait in japonica rice at the bud stage. RESULTS A population of 184 recombinant inbred lines (RILs) was utilized to map quantitative trait loci (QTLs) for the root length under control condition (RL), alkaline stress (ARL) and relative root length (RRL) at the bud stage. A major QTL related to alkali tolerance at the rice bud stage, qAT11, was detected on chromosome 11. Interestingly, a GWAS identified a lead SNP (Chr_21,999,659) in qAT11 that was significantly associated with alkaline tolerance. After filtering by linkage disequilibrium (LD), haplotype analysis, quantitative real-time PCR, we obtained three candidate genes (LOC_Os11g37300, LOC_Os11g37320 and LOC_Os11g37390). In addition, we performed phenotype verification on the CRISPR/Cas9 mutant of LOC_Os11g37390. CONCLUSION Based on these results, LOC_Os11g37300, LOC_Os11g37320 and LOC_Os11g37390 were the candidate genes contributing to alkaline tolerance in japonica rice. This study provides resources for breeding aimed at improving rice responses to alkalinity stress.
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Affiliation(s)
- Xianwei Li
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Hongliang Zheng
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Wenshen Wu
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Hualong Liu
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Jingguo Wang
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Yan Jia
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Jiaming Li
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Luomiao Yang
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Lei Lei
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China
| | - Detang Zou
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China.
| | - Hongwei Zhao
- Key Laboratory of Germplasm Enhancement, Physiology and Ecology of Food Crops in Cold Region, Ministry of Education, Northeast Agricultural University, Harbin, 150030, China.
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Yan X, Wang S, Yang B, Zhang W, Cao Y, Shi Y, Sun D, Jing R. QTL mapping for flag leaf-related traits and genetic effect of QFLW-6A on flag leaf width using two related introgression line populations in wheat. PLoS One 2020; 15:e0229912. [PMID: 32191715 PMCID: PMC7082017 DOI: 10.1371/journal.pone.0229912] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 02/17/2020] [Indexed: 11/29/2022] Open
Abstract
The flag leaf is the main organ of photosynthesis during grain-filling period of wheat, and flag leaf-related traits affect plant morphology and yield potential. In this study, two BC3F6 introgression line (IL) populations derived from the common recipient parent Lumai 14 with Jing 411 and Shaanhan 8675, respectively, were used to map quantitative trait loci (QTL) for flag leaf length (FLL), flag leaf width (FLW), flag leaf area (FLA) and chlorophyll content (CC) at flowering stage and 15 and 20 days after anthesis (DAA) in 2016–2017 (E1) and 2017–2018 (E2) two environments. A total of 14 and 15 QTLs for flag leaf-related traits were detected in Lumai 14 / Jing 411 and Lumai 14 / Shaanhan 8675 populations, respectively. Among them, Both QFLW-6A and QFLA-6A were detected in Lumai 14 / Jing 411 population under E2 and in Lumai 14 / Shaanhan 8675 population under E1 and E2 environments, respectively. QCCS2-3A from Lumai 14 / Jing 411 population and QCCS3-1A, QFLL-4A and QFLL-6A from Lumai 14 / Shaanhan 8675 population were repeatedly identified under two tested environments. Moreover, eight QTL clusters controlling flag leaf-related traits were identified, which provided a genetic basis for significant correlations in phenotype among these traits. On the other hand, positive alleles of QFLW-6A for FLW detected in two populations were derived from their donors. Eighteen lines and 44 lines carried this QTL were found in Lumai 14 / Jing 411 and Lumai 14 / Shaanhan 8675 populations, respectively. The means of FLW in these lines were wider than that of the recipient parent, Lumai 14, in two environments, suggesting that QFLW-6A played an important role for increasing FLW. The IL 124 in Lumai 14 / Jing 411 population and the IL 59 and IL 127 in Lumai 14 / Shaanhan 8675 population had five, five and four donor chromosomal segments which carried no other QTL controlling FLW than QFLW-6A, respectively. And the FLWs of these lines were significantly greater than that of Lumai 14 under two environments. So these lines and their donor parent can be regarded as potential near-isogenic lines. Further, a synteny analysis found QFLW-6A was near the 574,283,851–574,283,613 bp fragment on chromosome 6A and 10 genes were in the range of 500 kb upstream and downstream of the fragment. These results provide the basis for identification of candidate gene and map-based cloning and functional verification of the QTL.
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Affiliation(s)
- Xue Yan
- College of Agronomy, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Shuguang Wang
- College of Agronomy, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Bin Yang
- Wheat Research Institute, Shanxi Academy of Agricultural Sciences, Linfen, Shanxi, China
| | - Wenjun Zhang
- College of Agronomy, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Yaping Cao
- Wheat Research Institute, Shanxi Academy of Agricultural Sciences, Linfen, Shanxi, China
| | - Yugang Shi
- College of Agronomy, Shanxi Agricultural University, Taigu, Shanxi, China
| | - Daizhen Sun
- College of Agronomy, Shanxi Agricultural University, Taigu, Shanxi, China
- * E-mail: (DS); (RJ)
| | - Ruilian Jing
- Chinese Academy of Agricultural Sciences, Institute of Crop Science, Beijing, China
- * E-mail: (DS); (RJ)
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Abd-Hamid NA, Ahmad-Fauzi MI, Zainal Z, Ismail I. Diverse and dynamic roles of F-box proteins in plant biology. PLANTA 2020; 251:68. [PMID: 32072251 DOI: 10.1007/s00425-020-03356-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 02/05/2020] [Indexed: 05/23/2023]
Abstract
The SCF complex is a widely studied multi-subunit ring E3 ubiquitin ligase that tags targeted proteins with ubiquitin for protein degradation by the ubiquitin 26S-proteasome system (UPS). The UPS is an important system that generally keeps cellular events tightly regulated by purging misfolded or damaged proteins and selectively degrading important regulatory proteins. The specificity of this post-translational regulation is controlled by F-box proteins (FBPs) via selective recognition of a protein-protein interaction motif at the C-terminal domain. Hence, FBPs are pivotal proteins in determining the plant response in multiple scenarios. It is not surprising that the FBP family is one of the largest protein families in the plant kingdom. In this review, the roles of FBPs, specifically in plants, are compiled to provide insights into their involvement in secondary metabolites, plant stresses, phytohormone signalling, plant developmental processes and miRNA biogenesis.
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Affiliation(s)
- Nur-Athirah Abd-Hamid
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Muhammad-Izzat Ahmad-Fauzi
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Zamri Zainal
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Ismanizan Ismail
- Institute of Systems Biology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
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Ali A, Pardo JM, Yun DJ. Desensitization of ABA-Signaling: The Swing From Activation to Degradation. FRONTIERS IN PLANT SCIENCE 2020; 11:379. [PMID: 32391026 PMCID: PMC7188955 DOI: 10.3389/fpls.2020.00379] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/17/2020] [Indexed: 05/18/2023]
Abstract
Abscisic acid (ABA) is a key plant stress-signaling hormone that accumulates upon osmotic stresses such as drought and high salinity. Several proteins have been identified that constitute the ABA-signaling pathway. Among them ABA receptors (PYR/PYL/RCAR), co-receptor PP2Cs (protein phosphatases), SnRK2 kinases (SNF1-related protein kinases) and ABI5/ABFs (transcription factors) are the major components. Upon ABA signal, PYR/PYL receptors interact with and recruit PP2Cs, releasing SnRK2s kinases from sequestration with PP2Cs. This allows SnKR2s to promote the activation of downstream transcription factors of ABA pathway. However, apart from activation, ubiquitination and degradation of core proteins in the ABA pathway by the ubiquitin proteasome system is less explored. In this review we will focus on the recent findings about feedback regulation of ABA signaling core proteins through degradation, which is emerging as a critical step that modulates and eventually ceases the signal relay. Additionally, we also discuss the importance of the recently identified effector protein HOS15, which negatively regulate ABA-signaling through degradation of OST1.
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Affiliation(s)
- Akhtar Ali
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, South Korea
| | - Jose M. Pardo
- Instituto de Bioquímica Vegetal y Fotosíntesis, cicCartuja, CSIC-Universidad de Sevilla, Seville, Spain
| | - Dae-Jin Yun
- Department of Biomedical Science and Engineering, Konkuk University, Seoul, South Korea
- *Correspondence: Dae-Jin Yun,
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Zhang S, Tian Z, Li H, Guo Y, Zhang Y, Roberts JA, Zhang X, Miao Y. Genome-wide analysis and characterization of F-box gene family in Gossypium hirsutum L. BMC Genomics 2019; 20:993. [PMID: 31856713 PMCID: PMC6921459 DOI: 10.1186/s12864-019-6280-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 11/13/2019] [Indexed: 11/18/2022] Open
Abstract
Background F-box proteins are substrate-recognition components of the Skp1-Rbx1-Cul1-F-box protein (SCF) ubiquitin ligases. By selectively targeting the key regulatory proteins or enzymes for ubiquitination and 26S proteasome mediated degradation, F-box proteins play diverse roles in plant growth/development and in the responses of plants to both environmental and endogenous signals. Studies of F-box proteins from the model plant Arabidopsis and from many additional plant species have demonstrated that they belong to a super gene family, and function across almost all aspects of the plant life cycle. However, systematic exploration of F-box family genes in the important fiber crop cotton (Gossypium hirsutum) has not been previously performed. The genome-wide analysis of the cotton F-box gene family is now possible thanks to the completion of several cotton genome sequencing projects. Results In current study, we first conducted a genome-wide investigation of cotton F-box family genes by reference to the published F-box protein sequences from other plant species. 592 F-box protein encoding genes were identified in the Gossypium hirsutume acc.TM-1 genome and, subsequently, we were able to present their gene structures, chromosomal locations, syntenic relationships with their parent species. In addition, duplication modes analysis showed that cotton F-box genes were distributed to 26 chromosomes, with the maximum number of genes being detected on chromosome 5. Although the WGD (whole-genome duplication) mode seems play a dominant role during cotton F-box gene expansion process, other duplication modes including TD (tandem duplication), PD (proximal duplication), and TRD (transposed duplication) also contribute significantly to the evolutionary expansion of cotton F-box genes. Collectively, these bioinformatic analysis suggest possible evolutionary forces underlying F-box gene diversification. Additionally, we also conducted analyses of gene ontology, and expression profiles in silico, allowing identification of F-box gene members potentially involved in hormone signal transduction. Conclusion The results of this study provide first insights into the Gossypium hirsutum F-box gene family, which lays the foundation for future studies of functionality, particularly those involving F-box protein family members that play a role in hormone signal transduction.
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Affiliation(s)
- Shulin Zhang
- State Key Laboratory of Cotton Biology, Institute of Plant Stress Biology, School of Life Sciences, Henan University, Jinming Street, Kaifeng, 475004, China.,College of Biology and Food Engineering, Anyang Institute of Technology, Anyang, 455000, China
| | - Zailong Tian
- State Key Laboratory of Cotton Biology, Institute of Plant Stress Biology, School of Life Sciences, Henan University, Jinming Street, Kaifeng, 475004, China
| | - Haipeng Li
- State Key Laboratory of Cotton Biology, Institute of Plant Stress Biology, School of Life Sciences, Henan University, Jinming Street, Kaifeng, 475004, China
| | - Yutao Guo
- State Key Laboratory of Cotton Biology, Institute of Plant Stress Biology, School of Life Sciences, Henan University, Jinming Street, Kaifeng, 475004, China
| | - Yanqi Zhang
- State Key Laboratory of Cotton Biology, Institute of Plant Stress Biology, School of Life Sciences, Henan University, Jinming Street, Kaifeng, 475004, China
| | - Jeremy A Roberts
- Faculty of Science and Engineering, School of Biological & Marine Sciences, University of Plymouth, Devon, UK
| | - Xuebin Zhang
- State Key Laboratory of Cotton Biology, Institute of Plant Stress Biology, School of Life Sciences, Henan University, Jinming Street, Kaifeng, 475004, China.
| | - Yuchen Miao
- State Key Laboratory of Cotton Biology, Institute of Plant Stress Biology, School of Life Sciences, Henan University, Jinming Street, Kaifeng, 475004, China.
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Ali A, Kim JK, Jan M, Khan HA, Khan IU, Shen M, Park J, Lim CJ, Hussain S, Baek D, Wang K, Chung WS, Rubio V, Lee SY, Gong Z, Kim WY, Bressan RA, Pardo JM, Yun DJ. Rheostatic Control of ABA Signaling through HOS15-Mediated OST1 Degradation. MOLECULAR PLANT 2019; 12:1447-1462. [PMID: 31491477 DOI: 10.1016/j.molp.2019.08.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/13/2019] [Accepted: 08/25/2019] [Indexed: 05/18/2023]
Abstract
Dehydrating stresses trigger the accumulation of abscisic acid (ABA), a key plant stress-signaling hormone that activates Snf1-Related Kinases (SnRK2s) to mount adaptive responses. However, the regulatory circuits that terminate the SnRK2s signal relay after acclimation or post-stress conditions remain to be defined. Here, we show that the desensitization of the ABA signal is achieved by the regulation of OST1 (SnRK2.6) protein stability via the E3-ubiquitin ligase HOS15. Upon ABA signal, HOS15-induced degradation of OST1 is inhibited and stabilized OST1 promotes the stress response. When the ABA signal terminates, protein phosphatases ABI1/2 promote rapid degradation of OST1 via HOS15. Notably, we found that even in the presence of ABA, OST1 levels are also depleted within hours of ABA signal onset. The unexpected dynamics of OST1 abundance are then resolved by systematic mathematical modeling, demonstrating a desensitizing feedback loop by which OST1-induced upregulation of ABI1/2 leads to the degradation of OST1. This model illustrates the complex rheostat dynamics underlying the ABA-induced stress response and desensitization.
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Affiliation(s)
- Akhtar Ali
- Department of Biomedical Science & Engineering, Konkuk University, Seoul 05029, South Korea
| | - Jae Kyoung Kim
- Department of Mathematical Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34131, Korea
| | - Masood Jan
- Department of Biomedical Science & Engineering, Konkuk University, Seoul 05029, South Korea
| | - Haris Ali Khan
- Department of Biomedical Science & Engineering, Konkuk University, Seoul 05029, South Korea
| | - Irfan Ullah Khan
- Department of Biomedical Science & Engineering, Konkuk University, Seoul 05029, South Korea
| | - Mingzhe Shen
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, South Korea
| | - Junghoon Park
- Department of Biomedical Science & Engineering, Konkuk University, Seoul 05029, South Korea
| | - Chae Jin Lim
- Department of Biomedical Science & Engineering, Konkuk University, Seoul 05029, South Korea
| | - Shah Hussain
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, South Korea
| | - Dongwon Baek
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, South Korea
| | - Kai Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Woo Sik Chung
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, South Korea
| | - Vicente Rubio
- Centro Nacional de Biotecnología-CSIC Darwin, 3. Campus de la UAM. Cantoblanco, 28049 Madrid, Spain
| | - Sang Yeol Lee
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, South Korea
| | - Zhizhong Gong
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Woe Yeon Kim
- Division of Applied Life Science, Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju 660-701, South Korea
| | - Ray A Bressan
- Department of Horticulture and Landscape Architecture, Purdue University, 625 Agriculture Mall Drive, West Lafayette, IN 47907-2010, USA
| | - Jose M Pardo
- Instituto de Bioquímica Vegetal y Fotosíntesis, cicCartuja, CSIC-Universidad de Sevilla, AmericoVespucio 49, Sevilla 41092, Spain
| | - Dae-Jin Yun
- Department of Biomedical Science & Engineering, Konkuk University, Seoul 05029, South Korea.
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An J, Li Q, Yang J, Zhang G, Zhao Z, Wu Y, Wang Y, Wang W. Wheat F-box Protein TaFBA1 Positively Regulates Plant Drought Tolerance but Negatively Regulates Stomatal Closure. FRONTIERS IN PLANT SCIENCE 2019; 10:1242. [PMID: 31649704 PMCID: PMC6795708 DOI: 10.3389/fpls.2019.01242] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 09/06/2019] [Indexed: 05/24/2023]
Abstract
The phytohormone abscisic acid (ABA) regulates plant growth and development, as well as responses to various stresses, such as salt and drought. The wheat TaFBA1 gene, which encodes an F-box protein, was previously identified in our laboratory by homologous cloning. We previously found that TaFBA1 expression was induced by ABA and drought stress. In this study, wild-type (WT), TaFBA1 over-expressing (OEs), TaFBA1 homologous gene mutants, and TaFBA1 recovery (Rs) Arabidopsis plants were used. We found that the germination rate, the cotyledon greening rate, the root length, and the photosynthetic performance of TaFBA1 OE plants were better than those of WT under drought and ABA conditions, but mutant plants showed the opposite trend, and overexpression of TaFBA1 in mutants can recover their phenotype. In addition, TaFBA1 was found to be a negative regulator of ABA-induced stoma movement; mRNA transcription of certain ABA signaling-related genes was lower in TaFBA1 OE plants than in WT plants following ABA treatment. Further, we found that TaFBA1 can interact with RCAR1 (an ABA receptor) and ABI5. BiFC assay showed that TaFBA1 may interact with RCAR1 in the plasma membrane. In addition, accumulation of ROS and MDA in TaFBA1 OE plants was lower than that in the WT plants after ABA and drought treatments. Based on these results, we suggest that TaFBA1-regulated ABA insensitivity may be dependent on regulating ABA-mediated gene expression through interacting with RCAR1 and ABI5. Increased antioxidant competence and decreased ROS accumulation may be an important mechanism that underlies improved drought tolerance in TaFBA1 OE plants.
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Bielsa B, Sanz MÁ, Rubio-Cabetas MJ. Uncovering early response to drought by proteomic, physiological and biochemical changes in the almond × peach rootstock 'Garnem'. FUNCTIONAL PLANT BIOLOGY : FPB 2019; 46:994-1008. [PMID: 31526467 DOI: 10.1071/fp19050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 06/15/2019] [Indexed: 06/10/2023]
Abstract
Drought affects growth and metabolism in plants. To investigate the changes in root protein function involved in the early response to drought stress, a proteomic analysis in combination to a physiological and biochemical analysis was performed in plants of 'Garnem', an almond × peach hybrid rootstock, subjected to short-term drought stress. Abscisic acid (ABA) accumulation levels increased during the drought exposure, which induced stomatal closure, and thus, minimised water losses. These effects were reflected in stomatal conductance and leaf water potential levels. However, 'Garnem' was able to balance water content and maintain an osmotic adjustment in cell membranes, suggesting a dehydration avoidance strategy. The proteomic analysis revealed significant abundance changes in 29 and 24 spots after 2 and 24 h of drought stress respectively. Out of these, 15 proteins were identified by LC-ESI-MS/MS. The abundance changes of these proteins suggest the influence in drought-responsive mechanisms present in 'Garnem', allowing its adaptation to drought conditions. Overall, our study improves existing knowledge on the root proteomic changes in the early response to drought. This will lead to a better understanding of dehydration avoidance and tolerance strategies, and finally, help in new drought-tolerance breeding approaches.
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Affiliation(s)
- Beatriz Bielsa
- Unidad de Hortofruticultura, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA) - IA2 (CITA-Universidad de Zaragoza), Av. Montañana 930, 50059, Zaragoza, Spain
| | - María Á Sanz
- Área de Laboratorios de Análisis y Asistencia Tecnológica, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA), Av. Montañana 930, 50059, Zaragoza, Spain
| | - María J Rubio-Cabetas
- Unidad de Hortofruticultura, Centro de Investigación y Tecnología Agroalimentaria de Aragón (CITA) - IA2 (CITA-Universidad de Zaragoza), Av. Montañana 930, 50059, Zaragoza, Spain; and Corresponding author.
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Xu FQ, Xue HW. The ubiquitin-proteasome system in plant responses to environments. PLANT, CELL & ENVIRONMENT 2019; 42:2931-2944. [PMID: 31364170 DOI: 10.1111/pce.13633] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 07/24/2019] [Accepted: 07/26/2019] [Indexed: 05/12/2023]
Abstract
The ubiquitin-proteasome system (UPS) is a rapid regulatory mechanism for selective protein degradation in plants and plays crucial roles in growth and development. There is increasing evidence that the UPS is also an integral part of plant adaptation to environmental stress, such as drought, salinity, cold, nutrient deprivation and pathogens. This review focuses on recent studies illustrating the important functions of the UPS components E2s, E3s and subunits of the proteasome and describes the regulation of proteasome activity during plant responses to environment stimuli. The future research hotspots and the potential for utilization of the UPS to improve plant tolerance to stress are discussed.
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Affiliation(s)
- Fa-Qing Xu
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 200032, Shanghai, China
- Shanghai College of Life Science, University of Chinese Academy of Sciences, 200032, Shanghai, China
| | - Hong-Wei Xue
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 200032, Shanghai, China
- School of Agriculture and Biology, Shanghai Jiao Tong University, 200240, Shanghai, China
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40
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Hwang JE, Hwang SG, Jung IJ, Han SM, Ahn JW, Kim JB. Overexpression of rice F-box protein OsFBX322 confers increased sensitivity to gamma irradiation in Arabidopsis. Genet Mol Biol 2019; 43:e20180273. [PMID: 31479093 PMCID: PMC7251472 DOI: 10.1590/1678-4685-gmb-2018-0273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 03/25/2019] [Indexed: 11/30/2022] Open
Abstract
Ionizing radiation has a substantial effect on physiological and biochemical
processes in plants via induction of transcriptional changes and diverse genetic
alterations. Previous microarray analysis showed that rice
OsFBX322, which encodes a rice F-box protein, was
downregulated in response to three types of ionizing radiation: gamma
irradiation, ion beams, and cosmic rays. In order to characterize the
radiation-responsive genes in rice, OsFBX322 was selected for
further analysis. OsFBX322 expression patterns in response to
radiation were confirmed using quantitative RT-PCR. Transient expression of a
GFP-OsFBX322 fusion protein in tobacco leaf epidermis indicated that OsFBX322 is
localized to the nucleus. To determine the effect of OsFBX322
expression on radiation response, OsFBX322 was overexpressed in
Arabidopsis. Transgenic overexpression lines were more
sensitive to gamma irradiation than control plants. These results suggest that
OsFBX322 plays a negative role in the defense response to
radiation in plants. In addition, we obtained four co-expression genes of
OsFBX322 by specific co-expression networks using the
ARANCE. Quantitative RT-PCR showed that the four genes were also downregulated
after exposure to the three types of radiation. These results imply that the
co-expressed genes may serve as key regulators in the radiation response pathway
in plants.
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Affiliation(s)
- Jung Eun Hwang
- National Institute of Ecology, Research Center for Endangered Species, Division of Restoration Research, Yeongyang, Republic of Korea
| | - Sun-Goo Hwang
- Kangwon Natl University, Department of Applied Plant Sciences, Plant Genomics Lab, Chuncheon, Republic of Korea
| | - In Jung Jung
- Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute, Jeongeup, Republic of Korea
| | - Sung Min Han
- Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute, Jeongeup, Republic of Korea
| | - Joon-Woo Ahn
- Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute, Jeongeup, Republic of Korea
| | - Jin-Baek Kim
- Korea Atomic Energy Research Institute, Advanced Radiation Technology Institute, Jeongeup, Republic of Korea
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Solanki S, Richards J, Ameen G, Wang X, Khan A, Ali H, Stangel A, Tamang P, Gross T, Gross P, Fetch TG, Brueggeman RS. Characterization of genes required for both Rpg1 and rpg4-mediated wheat stem rust resistance in barley. BMC Genomics 2019; 20:495. [PMID: 31200635 PMCID: PMC6570958 DOI: 10.1186/s12864-019-5858-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/29/2019] [Indexed: 01/20/2023] Open
Abstract
Background Puccinia graminis f. sp. tritici (Pgt) race TTKSK and its lineage pose a threat to barley production world-wide justifying the extensive efforts to identify, clone, and characterize the rpg4-mediated resistance locus (RMRL), the only effective resistance to virulent Pgt races in the TTKSK lineage. The RMRL contains two nucleotide-binding domain and leucine-rich repeat (NLR) resistance genes, Rpg5 and HvRga1, which are required for resistance. The two NLRs have head-to-head genome architecture with one NLR, Rpg5, containing an integrated C-terminal protein kinase domain, characteristic of an “integrated sensory domain” resistance mechanism. Fast neutron mutagenesis of line Q21861 was utilized in a forward genetics approach to identify genetic components that function in the RMRL or Rpg1 resistance mechanisms, as Q21861 contains both genes. A mutant was identified that compromises both RMRL and Rpg1-mediated resistances and had stunted seedling roots, designated required for P. graminis resistance 9 (rpr9). Results The rpr9 mutant generated in the Q21861 background was crossed with the Swiss landrace Hv584, which carries RMRL but contains polymorphism across the genome compared to Q21861. To map Rpr9, a Hv584 x rpr9 F6:7 recombinant inbred line (RIL) population was developed. The RIL population was phenotyped with Pgt race QCCJB. The Hv584 x rpr9 RIL population was genotyped with the 9 k Illumina Infinium iSelect marker panel, producing 2701 polymorphic markers. A robust genetic map consisting of 563 noncosegregating markers was generated and used to map Rpr9 to an ~ 3.4 cM region on barley chromosome 3H. The NimbleGen barley exome capture array was utilized to capture rpr9 and wild type Q21861 exons, followed by Illumina sequencing. Comparative analysis, resulting in the identification of a 1.05 Mbp deletion at the chromosome 3H rpr9 locus. The identified deletion contains ten high confidence annotated genes with the best rpr9 candidates encoding a SKP1-like 9 protein and a F-box family protein. Conclusion Genetic mapping and exome capture rapidly identified candidate gene/s that function in RMRL and Rpg1 mediated resistance pathway/s. One or more of the identified candidate rpr9 genes are essential in the only two known effective stem rust resistance mechanisms, present in domesticated barley. Electronic supplementary material The online version of this article (10.1186/s12864-019-5858-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shyam Solanki
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Jonathan Richards
- Department of Plant Pathology and Crop Physiology, Louisiana State University AgCenter, Baton Rouge, LA, 70803, USA
| | - Gazala Ameen
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Xue Wang
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Atiya Khan
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Harris Ali
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Alex Stangel
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Prabin Tamang
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Thomas Gross
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Patrick Gross
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA
| | - Thomas G Fetch
- Cereal Research Centre, Agriculture and Agri-Food Canada, 101 Route 100, Morden, MB, R6M 1Y5, Canada
| | - Robert S Brueggeman
- Department of Plant Pathology, North Dakota State University, Fargo, ND, 58108-6050, USA.
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Li J, Chen C, Wei J, Pan Y, Su C, Zhang X. SpPKE1, a Multiple Stress-Responsive Gene Confers Salt Tolerance in Tomato and Tobacco. Int J Mol Sci 2019; 20:E2478. [PMID: 31137458 PMCID: PMC6566969 DOI: 10.3390/ijms20102478] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 01/25/2023] Open
Abstract
Understanding the mechanism of abiotic-tolerance and producing germplasm of abiotic tolerance are important in plant research. Wild species often show more tolerance of environmental stress factors than their cultivated counterparts. Genes from wild species show potential abilities to improve abiotic resistance in cultivated species. Here, a tomato proline-, lysine-, and glutamic-rich type gene SpPKE1 was isolated from abiotic-resistant species (Solanum pennellii LA0716) for over-expression in tomato and tobacco for salt tolerance. The protein encoded by SpPKE1 was predominantly localized in the cytoplasm in tobacco. SpPKE1 and SlPKE1 (from cultivated species S. lycopersicum cv. M82) shared 89.7% similarity in amino acid sequences and their transcripts abundance in flowers and fruits was reduced by the imposition of drought or oxidative stress and the exogenous supply of abscisic acid. The DNA of the PKE1 promoter was highly methylated in fruit and leaf, and the methylation of the coding sequence in leaf was significantly higher than that in fruit at different development stages. The over-expression of SpPKE1 under the control of a CaMV (Cauliflower Mosaic Virus) 35S promoter in transgenic tomato and tobacco plants enhanced their tolerance to salt stress. PKE1 was downregulated by abiotic stresses but enhanced the plant's salt stress tolerance. Therefore, this gene may be involved in post-transcriptional regulation and may be an important candidate for molecular breeding of salt-tolerant plants.
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Affiliation(s)
- Jinhua Li
- State Cultivation Base of Crop Stress Biology for Southern Mountainous land of Southwest University, Academy of Agricultural Sciences, Southwest University, Beibei, Chongqing 400715, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing 400715, China.
| | - Chunrui Chen
- State Cultivation Base of Crop Stress Biology for Southern Mountainous land of Southwest University, Academy of Agricultural Sciences, Southwest University, Beibei, Chongqing 400715, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing 400715, China.
| | - Juanjuan Wei
- State Cultivation Base of Crop Stress Biology for Southern Mountainous land of Southwest University, Academy of Agricultural Sciences, Southwest University, Beibei, Chongqing 400715, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing 400715, China.
| | - Yu Pan
- State Cultivation Base of Crop Stress Biology for Southern Mountainous land of Southwest University, Academy of Agricultural Sciences, Southwest University, Beibei, Chongqing 400715, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing 400715, China.
| | - Chenggang Su
- State Cultivation Base of Crop Stress Biology for Southern Mountainous land of Southwest University, Academy of Agricultural Sciences, Southwest University, Beibei, Chongqing 400715, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing 400715, China.
| | - Xingguo Zhang
- State Cultivation Base of Crop Stress Biology for Southern Mountainous land of Southwest University, Academy of Agricultural Sciences, Southwest University, Beibei, Chongqing 400715, China.
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing 400715, China.
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Rissel D, Peiter E. Poly(ADP-Ribose) Polymerases in Plants and Their Human Counterparts: Parallels and Peculiarities. Int J Mol Sci 2019; 20:E1638. [PMID: 30986964 PMCID: PMC6479469 DOI: 10.3390/ijms20071638] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/28/2019] [Accepted: 03/29/2019] [Indexed: 12/25/2022] Open
Abstract
Poly(ADP-ribosyl)ation is a rapid and transient post-translational protein modification that was described first in mammalian cells. Activated by the sensing of DNA strand breaks, poly(ADP-ribose)polymerase1 (PARP1) transfers ADP-ribose units onto itself and other target proteins using NAD⁺ as a substrate. Subsequently, DNA damage responses and other cellular responses are initiated. In plants, poly(ADP-ribose) polymerases (PARPs) have also been implicated in responses to DNA damage. The Arabidopsis genome contains three canonical PARP genes, the nomenclature of which has been uncoordinated in the past. Albeit assumptions concerning the function and roles of PARP proteins in planta have often been inferred from homology and structural conservation between plant PARPs and their mammalian counterparts, plant-specific roles have become apparent. In particular, PARPs have been linked to stress responses of plants. A negative role under abiotic stress has been inferred from studies in which a genetic or, more commonly, pharmacological inhibition of PARP activity improved the performance of stressed plants; in response to pathogen-associated molecular patterns, a positive role has been suggested. However, reports have been inconsistent, and the effects of PARP inhibitors appear to be more robust than the genetic abolition of PARP gene expression, indicating the presence of alternative targets of those drugs. Collectively, recent evidence suggests a conditionality of stress-related phenotypes of parp mutants and calls for a reconsideration of PARP inhibitor studies on plants. This review critically summarizes our current understanding of poly(ADP-ribosylation) and PARP proteins in plants, highlighting similarities and differences to human PARPs, areas of controversy, and requirements for future studies.
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Affiliation(s)
- Dagmar Rissel
- Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Faculty of Natural Sciences III, Martin Luther University Halle-Wittenberg, 06099 Halle (Saale), Germany.
- Agrochemisches Institut Piesteritz e.V. (AIP), Möllensdorfer Strasse 13, 06886 Lutherstadt Wittenberg, Germany.
- Institute for Plant Protection in Field Crops and Grassland, Julius Kühn-Institut (JKI), 38104 Braunschweig, Germany.
| | - Edgar Peiter
- Plant Nutrition Laboratory, Institute of Agricultural and Nutritional Sciences, Faculty of Natural Sciences III, Martin Luther University Halle-Wittenberg, 06099 Halle (Saale), Germany.
- Agrochemisches Institut Piesteritz e.V. (AIP), Möllensdorfer Strasse 13, 06886 Lutherstadt Wittenberg, Germany.
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Rao V, Petla BP, Verma P, Salvi P, Kamble NU, Ghosh S, Kaur H, Saxena SC, Majee M. Arabidopsis SKP1-like protein13 (ASK13) positively regulates seed germination and seedling growth under abiotic stress. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:3899-3915. [PMID: 29788274 PMCID: PMC6054272 DOI: 10.1093/jxb/ery191] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/15/2018] [Indexed: 05/03/2023]
Abstract
SKP1 (S-phase kinase-associated protein1) proteins are key members of the SCF (SKP-cullin-F-box protein) E3 ligase complexes that ubiquitinate target proteins and play diverse roles in plant biology. However, in comparison with other members of the SCF complex, knowledge of SKP1-like proteins is very limited in plants. In the present work, we report that Arabidopsis SKP1-like protein13 (ASK13) is differentially regulated in different organs during seed development and germination and is up-regulated in response to abiotic stress. Yeast two-hybrid library screening and subsequent assessment of in vivo interactions through bimolecular fluorescence complementation analysis revealed that ASK13 not only interacts with F-box proteins but also with other proteins that are not components of SCF complexes. Biochemical analysis demonstrated that ASK13 not only exists as a monomer but also as a homo-oligomer or heteromer with other ASK proteins. Functional analysis using ASK13 overexpression and knockdown lines showed that ASK13 positively influences seed germination and seedling growth, particularly under abiotic stress. Taken together, our data strongly suggest that apart from participation to form SCF complexes, ASK13 interacts with several other proteins and is implicated in different cellular processes distinct from protein degradation.
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Affiliation(s)
- Venkateswara Rao
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Bhanu Prakash Petla
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Pooja Verma
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Prafull Salvi
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Nitin Uttam Kamble
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Shraboni Ghosh
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Harmeet Kaur
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Saurabh C Saxena
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
| | - Manoj Majee
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, New Delhi, India
- Correspondence:
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Guo X, Zhang Y, Tu Y, Wang Y, Cheng W, Yang Y. Overexpression of an EIN3-binding F-box protein2-like gene caused elongated fruit shape and delayed fruit development and ripening in tomato. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 272:131-141. [PMID: 29807583 DOI: 10.1016/j.plantsci.2018.04.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 05/18/2023]
Abstract
Ethylene signaling converges on the ETHYLENE-INSENSITIVE3 (EIN3)/EIN3-like (EIL) transcription factors to regulate a wide range of developmental processes in plants. EBF1/2 (EIN3-binding F-box protein 1 and 2) negatively regulate the ethylene signaling pathway by mediating the degradation of EIN3/EIL proteins. We uncovered previously that SlEBF1 and SlEBF2 are involved in ethylene response, plant senescence, and fruit ripening in tomato. The present study reports on the identification of a novel tomato F-box gene, designated as SlEBF2-like due that its encoded protein is greater similarity to SlEBF2. The SlEBF2-like promoter region contains three ethylene-response elements (EREs). SlEBF2-like is upregulated by ethylene and downregulated by ethylene inhibitors in tomato seedlings. It is dynamically expressed in flowers during bud-to-anthesis and anthesis-to-post-anthesis transitions, and at the onset of fruit ripening, suggesting its role in these situations where ethylene is required for flower opening and fruit ripening. SlEBF2-like overexpression leaded to fruit elongation, caused ripening and color change to start from fruit bottom and expand gradually to the pedicel, and strongly delayed fruit development and ripening in tomato. Our study indicates that the novel EBF gene, SlEBF2-like, is involved in fruit development and ripening via regulating the ethylene response in tomato.
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Affiliation(s)
- Xiaokun Guo
- Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Yong Zhang
- Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Yun Tu
- Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Yongzhong Wang
- Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Wenjing Cheng
- Bioengineering College, Chongqing University, Chongqing 400044, China
| | - Yingwu Yang
- Bioengineering College, Chongqing University, Chongqing 400044, China.
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Li J, Wang Y, Wei J, Pan Y, Su C, Zhang X. A tomato proline-, lysine-, and glutamic-rich type gene SpPKE1 positively regulates drought stress tolerance. Biochem Biophys Res Commun 2018; 499:777-782. [PMID: 29608895 DOI: 10.1016/j.bbrc.2018.03.222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 03/30/2018] [Indexed: 11/29/2022]
Abstract
Plant abiotic resistance in cultivated species features limited variability. Using genes of wild species serves as a valid approach for improving abiotic resistance of cultivated plants. In this study, we uncovered a previously uncharacterized proline-, lysine-, and glutamic-rich protein gene (SpPKE1), which was isolated from drought-resistant wild tomato species Solanum pennellii (LA0716). When M82, which is a drought-sensitive tomato cultivar, was engineered to overexpress SpPKE1, its tolerance under drought stress was significantly improved by the accumulation of more chlorophyll, proline, and limited malondialdehyde compared with that in RNA interference (RNAi)-suppression lines, which were more sensitive than the wild-type plants. Several ion transporter genes, abiotic-related transcriptional factors, and reactive oxygen species-scavenging genes were upregulated in PKE1 overexpression (OE) lines but downregulated in RNAi plants. OE of SpPKE1 enhanced drought tolerance in tobacco. Screening results of yeast two-hybrid protein-protein interaction revealed that SpPKE1 can bind to an F-box protein that plays an important role in plant drought resistance. We posited that PKE1 enhanced drought tolerance by modulating the expressions of stress-responsive genes and interacting with the F-box protein.
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Affiliation(s)
- Jinhua Li
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architechture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yaling Wang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architechture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Juanjuan Wei
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architechture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu Pan
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architechture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Chenggang Su
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architechture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Xingguo Zhang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architechture, Southwest University, No.2 Tiansheng Road, Beibei, Chongqing, 400715, China.
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Dubey NK, Mishra DK, Idris A, Nigam D, Singh PK, Sawant SV. Whitefly and aphid inducible promoters of Arabidopsis thaliana L. J Genet 2018; 97:109-119. [PMID: 29666330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Lack of regulated expression and tissue specificity are the major drawbacks of plant and virus-derived constitutive promoters. A precise tissue or site-specific expression, facilitate regulated expression of proteins at the targeted time and site. Publically available microarray data on whitefly and aphid infested Arabidopsis thaliana L. was used to identify whitefly and aphid-inducible genes. The qRT-PCR further validated the inducible behaviour of these genes under artificial infestation. Promoter sequences of genes were retrieved from the Arabidopsis Information Resources database with their corresponding 5'UTR and cloned from the A. thaliana genome. Promoter reporter transcriptional fusions were developed with the beta-glucuronidase (GUS) gusA gene in a binary expression vector to validate the inducible behaviour of these promoters in eight independent transgenic Nicotiana tabaccum lines. Histochemical analysis of the reporter gene in T2 transgenic tobacco lines confirmed promoter driven expression at the sites of aphid and whitefly infestation. The qRT-PCR and GUS expression analysis of transgenic lines revealed that abscisic acid largely influenced the expression of both aphid and whitefly inducible promoters. Further, whitefly-specific promoter respond to salicylic acid and jasmonic acid (JA), whereas aphid-specific promoters to JA and 1-aminocyclopropane carboxylic acid. The response of promoters to phytohormones correlated to the presence of corresponding conserved cis-regulatory elements.
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Affiliation(s)
- Neeraj Kumar Dubey
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India.
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Dubey NK, Mishra DK, Idris A, Nigam D, Singh PK, Sawant SV. Whitefly and aphid inducible promoters of Arabidopsis thaliana L. J Genet 2018. [DOI: 10.1007/s12041-018-0887-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Basu S, Rabara R. Abscisic acid — An enigma in the abiotic stress tolerance of crop plants. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.plgene.2017.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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50
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Zhao Z, Zhang G, Zhou S, Ren Y, Wang W. The improvement of salt tolerance in transgenic tobacco by overexpression of wheat F-box gene TaFBA1. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 259:71-85. [PMID: 28483055 DOI: 10.1016/j.plantsci.2017.03.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 02/27/2017] [Accepted: 03/19/2017] [Indexed: 05/08/2023]
Abstract
F-box protein is a major subunit of the Skp1-Cullin-F-box (SCF) complex. We previously isolated an F-box gene from wheat, TaFBA1, and here we show that overexpression of TaFBA1 in transgenic plants under salt stress increases germination rate, root elongation, and biomass accumulation compared with WT plants. Improvements in the photosynthetic rate and its corresponding parameters were also found in the transgenic plants. These results suggest that overexpression of TaFBA1 improves salt stress tolerance in transgenic tobacco. Further, the transgenic plants displayed less membrane damage, higher antioxidant enzyme activity, and less accumulation of ROS under salt stress. The transgenic plants also had lower Na+ content and higher K+ content than WT plants in leaves and roots. The activity of H+-ATPase on the plasma membrane in the transgenic plants was higher than in WT plants, and was accompanied by a net Na+ efflux. In the tonoplast, the activity levels of V-ATPase and PPase were also higher in the transgenic plants, thus helping to maximize intracellular Na+ compartmentalization. The expression of some stress-related genes was upregulated by salt stress. This suggests that the enhancement of plant salt stress tolerance may be associated with an improvement in antioxidative competition and Na+/K+ ion regionalization.
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Affiliation(s)
- Zhongxian Zhao
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Guangqiang Zhang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Shumei Zhou
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Yuanqing Ren
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China
| | - Wei Wang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University, Tai'an, Shandong, 271018, PR China.
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