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Zhou X, Lu C, Zhou F, Zhu Y, Jiang W, Zhou A, Shen Y, Pan L, Lv A, Shao Q. Transcription factor DcbZIPs regulate secondary metabolism in Dendrobium catenatum during cold stress. PHYSIOLOGIA PLANTARUM 2024; 176:e14501. [PMID: 39256953 DOI: 10.1111/ppl.14501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 07/05/2024] [Accepted: 07/25/2024] [Indexed: 09/12/2024]
Abstract
Cold stress seriously affects plant development and secondary metabolism. The basic region/leucine zipper (bZIP) is one of the largest transcription factor (TFs) family and widely involved in plant cold stress response. However, the function of bZIP in Dendrobium catenatum has not been well-documented. Cold inhibited the growth of D. catenatum and increased total polysaccharide and alkaloid contents in stems. Here, 62 DcbZIP genes were identified in D. catenatum, which were divided into 13 subfamilies. Among them, 58 DcbZIPs responded to cold stress, which were selected based on the transcriptome database produced from cold-treated D. catenatum seedlings. Specifically, the expression of DcbZIP3/6/28 was highly induced by cold treatment in leaves or stems. Gene sequence analysis indicated that DcbZIP3/6/28 contains the bZIP conserved domain and is localized to the cell nucleus. Co-expression networks showed that DcbZIP6 was significantly negatively correlated with PAL2 (palmitoyl-CoA), which is involved in flavonoid metabolism. Moreover, DcbZIP28 has significant negative correlations with various metabolism-related genes in the polysaccharide metabolic pathway, including PFKA1 (6-phosphofructokinase), ALDO2 (aldose-6-phosphate reductase) and SCRK5 (fructokinase). These results implied that DcbZIP6 or DcbZIP28 are mainly involved in flavonoid or polysaccharide metabolism. Overall, these findings provide new insights into the roles of the DcbZIP gene family in secondary metabolism in D. catenatum under cold stress.
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Affiliation(s)
- Xiaohui Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Chenfei Lu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Fenfen Zhou
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Yanqin Zhu
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Wu Jiang
- Zhejiang Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou, China
| | - Aicun Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Pan'an Traditional Chinese Medicine Industry Innovation and Development Institute, Zhejiang, PR China
| | - Yanghui Shen
- Pan'an Traditional Chinese Medicine Industry Innovation and Development Institute, Zhejiang, PR China
| | - Lanying Pan
- Shulan International Medical College, Zhejiang Shuren University, Hangzhou, China
| | - Aimin Lv
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
| | - Qingsong Shao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
- Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang A&F University, Hangzhou, China
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Wang Y, Cheng J, Guo Y, Li Z, Yang S, Wang Y, Gong Z. Phosphorylation of ZmAL14 by ZmSnRK2.2 regulates drought resistance through derepressing ZmROP8 expression. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:1334-1350. [PMID: 38804844 DOI: 10.1111/jipb.13677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/24/2024] [Indexed: 05/29/2024]
Abstract
Drought stress has negative effects on crop growth and production. Characterization of transcription factors that regulate the expression of drought-responsive genes is critical for understanding the transcriptional regulatory networks in response to drought, which facilitates the improvement of crop drought tolerance. Here, we identified an Alfin-like (AL) family gene ZmAL14 that negatively regulates drought resistance. Overexpression of ZmAL14 exhibits susceptibility to drought while mutation of ZmAL14 enhances drought resistance. An abscisic acid (ABA)-activated protein kinase ZmSnRK2.2 interacts and phosphorylates ZmAL14 at T38 residue. Knockout of ZmSnRK2.2 gene decreases drought resistance of maize. A dehydration-induced Rho-like small guanosine triphosphatase gene ZmROP8 is directly targeted and repressed by ZmAL14. Phosphorylation of ZmAL14 by ZmSnRK2.2 prevents its binding to the ZmROP8 promoter, thereby releasing the repression of ZmROP8 transcription. Overexpression of ZmROP8 stimulates peroxidase activity and reduces hydrogen peroxide accumulation after drought treatment. Collectively, our study indicates that ZmAL14 is a negative regulator of drought resistance, which can be phosphorylated by ZmSnRK2.2 through the ABA signaling pathway, thus preventing its suppression on ZmROP8 transcription during drought stress response.
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Affiliation(s)
- Yalin Wang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Jinkui Cheng
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- Center for Crop Functional Genomics and Molecular Breeding, China Agricultural University, Beijing, 100193, China
| | - Yazhen Guo
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Shuhua Yang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yu Wang
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhizhong Gong
- State Key Laboratory of Plant Environmental Resilience, Frontiers Science Center for Molecular Design Breeding, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
- College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
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Ma X, Sheng L, Li F, Zhou T, Guo J, Chang Y, Yang J, Jin Y, Chen Y, Lu X. Seasonal drought promotes citrate accumulation in citrus fruit through the CsABF3-activated CsAN1-CsPH8 pathway. THE NEW PHYTOLOGIST 2024; 242:1131-1145. [PMID: 38482565 DOI: 10.1111/nph.19671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 02/12/2024] [Indexed: 04/12/2024]
Abstract
Plenty of rainfall but unevenly seasonal distribution happens regularly in southern China. Seasonal drought from summer to early autumn leads to citrus fruit acidification, but how seasonal drought regulates citrate accumulation remains unknown. Herein, we employed a set of physiological, biochemical, and molecular approaches to reveal that CsABF3 responds to seasonal drought stress and modulates citrate accumulation in citrus fruits by directly regulating CsAN1 and CsPH8. Here, we demonstrated that irreversible acidification of citrus fruits is caused by drought lasting for > 30 d during the fruit enlargement stage. We investigated the transcriptome characteristics of fruits affected by drought and corroborated the pivotal roles of a bHLH transcription factor (CsAN1) and a P3A-ATPase gene (CsPH8) in regulating citrate accumulation in response to drought. Abscisic acid (ABA)-responsive element binding factor 3 (CsABF3) was upregulated by drought in an ABA-dependent manner. CsABF3 activated CsAN1 and CsPH8 expression by directly and specifically binding to the ABA-responsive elements (ABREs) in the promoters and positively regulated citrate accumulation. Taken together, this study sheds new light on the regulatory module ABA-CsABF3-CsAN1-CsPH8 responsible for citrate accumulation under drought stress, which advances our understanding of quality formation of citrus fruit.
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Affiliation(s)
- Xiaochuan Ma
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Ling Sheng
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Feifei Li
- Institute of Horticulture, Hunan Academy of Agricultural Science, 410125, Changsha, China
| | - Tie Zhou
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Jing Guo
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Yuanyuan Chang
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Junfeng Yang
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Yan Jin
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Yuewen Chen
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
| | - Xiaopeng Lu
- College of Horticulture, Hunan Agricultural University, 410128, Changsha, China
- National Center for Citrus Improvement, 410128, Changsha, China
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Yang W, Xin Z, Zhang Q, Zhang Y, Niu L. The tree peony DREB transcription factor PrDREB2D regulates seed α-linolenic acid accumulation. PLANT PHYSIOLOGY 2024; 195:745-761. [PMID: 38365221 DOI: 10.1093/plphys/kiae082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 02/18/2024]
Abstract
α-Linolenic acid (ALA), an essential fatty acid (FA) for human health, serves as the precursor of 2 nutritional benefits, docosahexaenoic acid and eicosapentaenoic acid, and can only be obtained from plant foods. We previously found that phospholipid:diacylglycerol acyltransferase 2 (PrPDAT2) derived from ALA-rich tree peony (Paeonia rockii) can promote seed ALA accumulation. However, the regulatory mechanism underlying its promoting effect on ALA accumulation remains unknown. Here, we revealed a tree peony dehydration-responsive element binding transcription factor, PrDREB2D, as an upstream regulator of PrPDAT2, which is involved in regulating seed ALA accumulation. Our findings demonstrated that PrDREB2D serves as a nucleus-localized transcriptional activator that directly activates PrPDAT2 expression. PrDREB2D altered the FA composition in transient overexpression Nicotiana benthamiana leaves and stable transgenic Arabidopsis (Arabidopsis thaliana) seeds. Repressing PrDREB2D expression in P. rockii resulted in decreased PrPDAT2 expression and ALA accumulation. In addition, PrDREB2D strengthened its regulation of ALA accumulation by recruiting the cofactor ABA-response element binding factor PrABF2b. Collectively, the study findings provide insights into the mechanism of seed ALA accumulation and avenues for enhancing ALA yield via biotechnological manipulation.
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Affiliation(s)
- Weizong Yang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- Oil Peony Engineering Technology Research Center of National Forestry Administration, Yangling 712100, China
| | - Ziwei Xin
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- Oil Peony Engineering Technology Research Center of National Forestry Administration, Yangling 712100, China
| | - Qingyu Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- Oil Peony Engineering Technology Research Center of National Forestry Administration, Yangling 712100, China
| | - Yanlong Zhang
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- Oil Peony Engineering Technology Research Center of National Forestry Administration, Yangling 712100, China
| | - Lixin Niu
- College of Landscape Architecture and Arts, Northwest A&F University, Yangling 712100, China
- Oil Peony Engineering Technology Research Center of National Forestry Administration, Yangling 712100, China
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Niu J, Zhao J, Guo Q, Zhang H, Yue A, Zhao J, Yin C, Wang M, Du W. WGCNA Reveals Hub Genes and Key Gene Regulatory Pathways of the Response of Soybean to Infection by Soybean mosaic virus. Genes (Basel) 2024; 15:566. [PMID: 38790195 PMCID: PMC11120672 DOI: 10.3390/genes15050566] [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: 03/27/2024] [Revised: 04/22/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024] Open
Abstract
Soybean mosaic virus (SMV) is one of the main pathogens that can negatively affect soybean production and quality. To study the gene regulatory network of soybeans in response to SMV SC15, the resistant line X149 and susceptible line X97 were subjected to transcriptome analysis at 0, 2, 8, 12, 24, and 48 h post-inoculation (hpi). Differential expression analysis revealed that 10,190 differentially expressed genes (DEGs) responded to SC15 infection. Weighted gene co-expression network analysis (WGCNA) was performed to identify highly related resistance gene modules; in total, eight modules, including 2256 DEGs, were identified. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of 2256 DEGs revealed that the genes significantly clustered into resistance-related pathways, such as the plant-pathogen interaction pathway, mitogen-activated protein kinases (MAPK) signaling pathway, and plant hormone signal transduction pathway. Among these pathways, we found that the flg22, Ca2+, hydrogen peroxide (H2O2), and abscisic acid (ABA) regulatory pathways were fully covered by 36 DEGs. Among the 36 DEGs, the gene Glyma.01G225100 (protein phosphatase 2C, PP2C) in the ABA regulatory pathway, the gene Glyma.16G031900 (WRKY transcription factor 22, WRKY22) in Ca2+ and H2O2 regulatory pathways, and the gene Glyma.04G175300 (calcium-dependent protein kinase, CDPK) in Ca2+ regulatory pathways were highly connected hub genes. These results indicate that the resistance of X149 to SC15 may depend on the positive regulation of flg22, Ca2+, H2O2, and ABA regulatory pathways. Our study further showed that superoxide dismutase (SOD) activity, H2O2 content, and catalase (CAT) and peroxidase (POD) activities were significantly up-regulated in the resistant line X149 compared with those in 0 hpi. This finding indicates that the H2O2 regulatory pathway might be dependent on flg22- and Ca2+-pathway-induced ROS generation. In addition, two hub genes, Glyma.07G190100 (encoding F-box protein) and Glyma.12G185400 (encoding calmodulin-like proteins, CMLs), were also identified and they could positively regulate X149 resistance. This study provides pathways for further investigation of SMV resistance mechanisms in soybean.
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Affiliation(s)
- Jingping Niu
- College of Life Sciences, Shanxi Agricultural University, Taigu, Jinzhong 030801, China;
| | - Jing Zhao
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (Q.G.); (H.Z.); (A.Y.); (M.W.)
| | - Qian Guo
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (Q.G.); (H.Z.); (A.Y.); (M.W.)
| | - Hanyue Zhang
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (Q.G.); (H.Z.); (A.Y.); (M.W.)
| | - Aiqin Yue
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (Q.G.); (H.Z.); (A.Y.); (M.W.)
| | - Jinzhong Zhao
- Department of Basic Sciences, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (C.Y.)
| | - Congcong Yin
- Department of Basic Sciences, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (C.Y.)
| | - Min Wang
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (Q.G.); (H.Z.); (A.Y.); (M.W.)
| | - Weijun Du
- College of Agronomy, Shanxi Agricultural University, Taigu, Jinzhong 030801, China; (J.Z.); (Q.G.); (H.Z.); (A.Y.); (M.W.)
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Cao P, Yang J, Xia L, Zhang Z, Wu Z, Hao Y, Liu P, Wang C, Li C, Yang J, Lai J, Li X, Deng M, Wang S. Two gene clusters and their positive regulator SlMYB13 that have undergone domestication-associated negative selection control phenolamide accumulation and drought tolerance in tomato. MOLECULAR PLANT 2024; 17:579-597. [PMID: 38327054 DOI: 10.1016/j.molp.2024.02.003] [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: 08/22/2023] [Revised: 01/01/2024] [Accepted: 02/02/2024] [Indexed: 02/09/2024]
Abstract
Among plant metabolites, phenolamides, which are conjugates of hydroxycinnamic acid derivatives and polyamines, play important roles in plant adaptation to abiotic and biotic stresses. However, the molecular mechanisms underlying phenolamide metabolism and regulation as well as the effects of domestication and breeding on phenolamide diversity in tomato remain largely unclear. In this study, we performed a metabolite-based genome-wide association study and identified two biosynthetic gene clusters (BGC7 and BGC11) containing 12 genes involved in phenolamide metabolism, including four biosynthesis genes (two 4CL genes, one C3H gene, and one CPA gene), seven decoration genes (five AT genes and two UGT genes), and one transport protein gene (DTX29). Using gene co-expression network analysis we further discovered that SlMYB13 positively regulates the expression of two gene clusters, thereby promoting phenolamide accumulation. Genetic and physiological analyses showed that BGC7, BGC11 and SlMYB13 enhance drought tolerance by enhancing scavenging of reactive oxygen species and increasing abscisic acid content in tomato. Natural variation analysis suggested that BGC7, BGC11 and SlMYB13 were negatively selected during tomato domestication and improvement, leading to reduced phenolamide content and drought tolerance of cultivated tomato. Collectively, our study discovers a key mechanism of phenolamide biosynthesis and regulation in tomato and reveals that crop domestication and improvement shapes metabolic diversity to affect plant environmental adaptation.
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Affiliation(s)
- Peng Cao
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China; Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou 572208, China
| | - Jun Yang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China; Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou 572208, China.
| | - Linghao Xia
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Zhonghui Zhang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Zeyong Wu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Yingchen Hao
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Penghui Liu
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Chao Wang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Chun Li
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Jie Yang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Jun Lai
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Xianggui Li
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Meng Deng
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China
| | - Shouchuang Wang
- School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya 572025, China; College of Tropical Agriculture and Forestry, Hainan University, Haikou 572208, China; Collaborative Innovation Center of Nanfan and High-Efficiency Tropical Agriculture, Hainan University, Haikou 572208, China.
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Deng H, Hou Q, Wen Z, Yu R, Cao X, Shang C, Cai X, Qiao G. Chinese cherry CpMYB44-CpSPDS2 module regulates spermidine content and florescence in tobacco. PHYSIOLOGIA PLANTARUM 2024; 176:e14300. [PMID: 38629194 DOI: 10.1111/ppl.14300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/10/2024] [Accepted: 03/26/2024] [Indexed: 04/19/2024]
Abstract
The flower bud differentiation plays a crucial role in cherry yield and quality. In a preliminary study, we revealed the promotion of spermidine (Spd) in bud differentiation and quality. However, the molecular mechanism underlying Spd regulating cherry bud differentiation remains unclear. To address this research gap, we cloned CpSPDS2, a gene that encodes Spd synthase and is highly expressed in whole flowers and pistils of the Chinese cherry (cv. 'Manaohong'). Furthermore, an overexpression vector with this gene was constructed to transform tobacco plants. The findings demonstrated that transgenic lines exhibited higher Spd content, an earlier flowering time by 6 d, and more lateral buds and flowers than wild-type lines. Additionally, yeast one-hybrid assays and two-luciferase experiments confirmed that the R2R3-MYB transcription factor (CpMYB44) directly binds to and activates the CpSPDS2 promoter transcription. It is indicated that CpMYB44 promotes Spd accumulation via regulating CpSPDS2 expression, thus accelerating the flower growth. This research provides a basis for resolving the molecular mechanism of CpSPDS2 involved in cherry bud differentiation.
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Affiliation(s)
- Hong Deng
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
| | - Qiandong Hou
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
| | - Zhuang Wen
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
| | - Runrun Yu
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
| | - Xuejiao Cao
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
| | - Chunqiong Shang
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
| | - Xiaowei Cai
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
| | - Guang Qiao
- Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Guizhou Key Laboratory of Agricultural Bioengineering, Institute of Agro-bioengineering /College of Life Sciences, Guizhou University, Guiyang, Guizhou Province, China
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8
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Zhang H, Pei Y, Zhu F, He Q, Zhou Y, Ma B, Chen X, Guo J, Khan A, Jahangir M, Ou L, Chen R. CaSnRK2.4-mediated phosphorylation of CaNAC035 regulates abscisic acid synthesis in pepper (Capsicum annuum L.) responding to cold stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 117:1377-1391. [PMID: 38017590 DOI: 10.1111/tpj.16568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/05/2023] [Accepted: 11/09/2023] [Indexed: 11/30/2023]
Abstract
Plant NAC transcription factors play a crucial role in enhancing cold stress tolerance, yet the precise molecular mechanisms underlying cold stress remain elusive. In this study, we identified and characterized CaNAC035, an NAC transcription factor isolated from pepper (Capsicum annuum) leaves. We observed that the expression of the CaNAC035 gene is induced by both cold and abscisic acid (ABA) treatments, and we elucidated its positive regulatory role in cold stress tolerance. Overexpression of CaNAC035 resulted in enhanced cold stress tolerance, while knockdown of CaNAC035 significantly reduced resistance to cold stress. Additionally, we discovered that CaSnRK2.4, a SnRK2 protein, plays an essential role in cold tolerance. In this study, we demonstrated that CaSnRK2.4 physically interacts with and phosphorylates CaNAC035 both in vitro and in vivo. Moreover, the expression of two ABA biosynthesis-related genes, CaAAO3 and CaNCED3, was significantly upregulated in the CaNAC035-overexpressing transgenic pepper lines. Yeast one-hybrid, Dual Luciferase, and electrophoretic mobility shift assays provided evidence that CaNAC035 binds to the promoter regions of both CaAAO3 and CaNCED3 in vivo and in vitro. Notably, treatment of transgenic pepper with 50 μm Fluridone (Flu) enhanced cold tolerance, while the exogenous application of ABA at a concentration of 10 μm noticeably reduced cold tolerance in the virus-induced gene silencing line. Overall, our findings highlight the involvement of CaNAC035 in the cold response of pepper and provide valuable insights into the molecular mechanisms underlying cold tolerance. These results offer promising prospects for molecular breeding strategies aimed at improving cold tolerance in pepper and other crops.
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Affiliation(s)
- Huafeng Zhang
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Yingping Pei
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Feilong Zhu
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Qiang He
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Yunyun Zhou
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Bohui Ma
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Xiaoqing Chen
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Jiangbai Guo
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Abid Khan
- Department of Horticulture, The University of Haripur, Haripur, 22620, Pakistan
| | - Maira Jahangir
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | - Lijun Ou
- College of Horticulture, Hunan Agricultural University, Changshai, 410125, China
| | - Rugang Chen
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
- Shaanxi Engineering Research Center for Vegetables, Yangling, 712100, China
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9
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Acheampong A, Wang R, Elsherbiny SM, Bondzie-Quaye P, Huang Q. Exogenous arginine promotes the coproduction of biomass and astaxanthin under high-light conditions in Haematococcus pluvialis. BIORESOURCE TECHNOLOGY 2024; 393:130001. [PMID: 37956949 DOI: 10.1016/j.biortech.2023.130001] [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: 09/25/2023] [Revised: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 11/21/2023]
Abstract
The economical way of Haematococcus pluvialis farming is to simultaneously achieve biomass, astaxanthin and lipid using less expensive chemicals. This paper explores the role of exogenous arginine in promoting growth and astaxanthin accumulation under stressful conditions. The application of arginine exerts a synergic effect on biomass, astaxanthin and lipid by improving carbon utilization, activating the arginine pathway and regulating carotenoid and lipid-related genes. Genes related to arginine catabolism, such as ADC, OCT, ASS1, NOS, and OAT, were up-regulated at both the cultivation and astaxanthin induction stages, signifying their importance in both growth and astaxanthin synthesis. Furthermore, transcriptome analysis revealed that arginine up-regulated transcription levels of genes involved carbon fixing, lipid biosynthesis, pyruvate metabolism, carotenoid, tricarboxylic acid cycle, and arginine and proline metabolism. The results provide a significant mechanism and applicability of using exogenous arginine and high light to stimulate bioproducts from Haematococcus pluvialis.
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Affiliation(s)
- Adolf Acheampong
- CAS Key Laboratory of High Magnetic Field and Iron Beam Physical Biology, Institute of Intelligent Machines, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
| | - Rong Wang
- CAS Key Laboratory of High Magnetic Field and Iron Beam Physical Biology, Institute of Intelligent Machines, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China; School of Environment and Energy Engineering, Anhui Jianzhu University, Heifei 230601, China
| | - Shereen M Elsherbiny
- CAS Key Laboratory of High Magnetic Field and Iron Beam Physical Biology, Institute of Intelligent Machines, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China; Department of Physics, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Precious Bondzie-Quaye
- CAS Key Laboratory of High Magnetic Field and Iron Beam Physical Biology, Institute of Intelligent Machines, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
| | - Qing Huang
- CAS Key Laboratory of High Magnetic Field and Iron Beam Physical Biology, Institute of Intelligent Machines, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China; Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China; School of Environment and Energy Engineering, Anhui Jianzhu University, Heifei 230601, China.
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10
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Zhang Y, He Y, Zhao H, Wang Y, Wu C, Zhao Y, Xue H, Zhu Q, Zhang J, Ou X. The 14-3-3 Protein BdGF14a Increases the Transcriptional Regulation Activity of BdbZIP62 to Confer Drought and Salt Resistance in Tobacco. PLANTS (BASEL, SWITZERLAND) 2024; 13:245. [PMID: 38256798 PMCID: PMC10819667 DOI: 10.3390/plants13020245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/27/2023] [Accepted: 01/12/2024] [Indexed: 01/24/2024]
Abstract
BdGF14a, a 14-3-3 gene from Brachypodium distachyon, induced by salt, H2O2, and abscisic acid (ABA), improved tolerance to drought and salt in tobacco, with a higher survival rate and longer roots under these stresses. Additionally, physiological index analyses showed that the heterologous expression of BdGF14a induced higher expression levels of antioxidant enzymes and their activities, leading to lighter DAB and NBT staining, denoting decreased H2O2 content. Additionally, the lower MDA content and ion leakage indicated enhanced cell membrane stability. Moreover, exogenous ABA resulted in shorter roots and a lower stomatal aperture in BdGF14a transgenic plants. BdGF14a interacted with NtABF2 and regulated the expression of stress-related genes. However, adding an ABA biosynthesis inhibitor suppressed most of these changes. Furthermore, similar salt and drought resistance phenotypes and physiological indicators were characterized in tobacco plants expressing BdbZIP62, an ABRE/ABF that interacts with BdGF14a. And Y1H and LUC assays showed that BdGF14a could enhance the transcription regulation activity of NtABF2 and BdbZIP62, targeting NtNECD1 by binding to the ABRE cis-element. Thus, BdGF14a confers resistance to drought and salinity through interaction with BdbZIP62 and enhances its transcriptional regulation activity via an ABA-mediated signaling pathway. Therefore, this work offers novel target genes for breeding salt- and drought-tolerant plants.
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Affiliation(s)
- Yang Zhang
- Henan Institute of Science and Technology, School of Agriculture, Xinxiang 453003, China; (Y.Z.); (H.X.); (Q.Z.)
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China; (Y.H.); (H.Z.); (Y.W.); (C.W.)
| | - Yuan He
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China; (Y.H.); (H.Z.); (Y.W.); (C.W.)
| | - Hongyan Zhao
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China; (Y.H.); (H.Z.); (Y.W.); (C.W.)
| | - Yan Wang
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China; (Y.H.); (H.Z.); (Y.W.); (C.W.)
| | - Chunlai Wu
- The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, The Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan 430074, China; (Y.H.); (H.Z.); (Y.W.); (C.W.)
| | - Yuanzeng Zhao
- Henan Institute of Science and Technology, School of Life Sciences, Xinxiang 453003, China;
| | - Hongna Xue
- Henan Institute of Science and Technology, School of Agriculture, Xinxiang 453003, China; (Y.Z.); (H.X.); (Q.Z.)
| | - Qidi Zhu
- Henan Institute of Science and Technology, School of Agriculture, Xinxiang 453003, China; (Y.Z.); (H.X.); (Q.Z.)
| | - Jinlong Zhang
- Henan Institute of Science and Technology, School of Agriculture, Xinxiang 453003, China; (Y.Z.); (H.X.); (Q.Z.)
| | - Xingqi Ou
- Henan Institute of Science and Technology, School of Agriculture, Xinxiang 453003, China; (Y.Z.); (H.X.); (Q.Z.)
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11
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Yue C, Cao H, Zhang S, Shen G, Wu Z, Yuan L, Luo L, Zeng L. Multilayer omics landscape analyses reveal the regulatory responses of tea plants to drought stress. Int J Biol Macromol 2023; 253:126582. [PMID: 37652332 DOI: 10.1016/j.ijbiomac.2023.126582] [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: 06/21/2023] [Revised: 08/12/2023] [Accepted: 08/27/2023] [Indexed: 09/02/2023]
Abstract
Adverse environments, especially drought conditions, deeply influence plant development and growth in all aspects, and the yield and quality of tea plants are largely dependent on favorable growth conditions. Although tea plant responses to drought stress (DS) have been studied, a comprehensive multilayer epigenetic, transcriptomic, and proteomic investigation of how tea responds to DS is lacking. In this study, we generated DNA methylome, transcriptome, proteome, and phosphoproteome data to explore multiple regulatory landscapes in the tea plant response to DS. An integrated multiomics analysis revealed the response of tea plants to DS at multiple regulatory levels. Furthermore, a set of DS-responsive genes involved in photosynthesis, transmembrane transportation, phytohormone metabolism and signaling, secondary metabolite pathways, transcription factors, protein kinases, posttranslational and epigenetic modification, and other key stress-responsive genes were identified for further functional investigation. These results reveal the multilayer regulatory landscape of the tea plant response to DS and provide insight into the mechanisms of these DS responses.
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Affiliation(s)
- Chuan Yue
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China.
| | - Hongli Cao
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Shaorong Zhang
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Gaojian Shen
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Zhijun Wu
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Lianyu Yuan
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Liyong Luo
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China
| | - Liang Zeng
- Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City/College of Food Science, Southwest University, Chongqing, China.
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12
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Wan S, Liang B, Yang L, Hu W, Kuang L, Song J, Xie J, Huang Y, Liu D, Liu Y. The MADS-box family gene PtrANR1 encodes a transcription activator promoting root growth and enhancing plant tolerance to drought stress. PLANT CELL REPORTS 2023; 43:16. [PMID: 38135839 DOI: 10.1007/s00299-023-03121-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023]
Abstract
KEY MESSAGE PtrANR1 positively regulates plant drought tolerance by increasing proline level and reducing ROS accumulation. PtrANR1 directly activates PtrAUX1 expression to promote root growth and improve plant drought tolerance. Citrus quality and yield are severely declined under drought stress. To date, the effects of MADS-box family transcription factors (TFs) on plant drought resistance have made some progress. However, whether MADS-box family TFs are associated with citrus drought response has remained unclear. The current paper identified a MADS-box family gene PtrANR1 encoding anthocyanidin reductase from trifoliate orange. PtrANR1 exhibits high identities with ANR1 proteins found in various plants. PtrANR1 possesses two conserved domains known as MADS and kertanin-like domains. PtrANR1 is a nuclear protein which has transactivation activity. A significant induction of PtrANR1 transcript was detected in leaves and roots of trifoliate orange treated with PEG6000 and ABA. Under drought stress, Arabidopsis ectopic overexpressing PtrANR1 exhibited obviously elevated contents of proline, ABA and IAA, better developed root, enhanced antioxidant enzyme activities, as well as notably reduced accumulation of malondialdehyde (MDA) and reactive oxygen species (ROS) compared with WT plants. However, opposite change trends of these physiological indices were detected in PtrANR1 homolog silencing lemon. Furthermore, transgenic Arabidopsis displayed significantly increased expression levels in genes associated with ABA, IAA and proline production, IAA polar transport, ROS elimination and drought response. However, these genes exhibited noticeably decreased transcript levels in PtrANR1 homolog silencing lemon. Moreover, PtrANR1 could increase IAA content and promote root growth by binding to GArG-box in the promoter of PtrAUX1 to activate its transcript. These findings indicated that PtrANR1 had a beneficial impact on plant drought resistance through promoting root development, increasing proline accumulation and scavenging of ROS.
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Affiliation(s)
- Shiguo Wan
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Beibei Liang
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Li Yang
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Wei Hu
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Liuqing Kuang
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Jie Song
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Jingheng Xie
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Yingjie Huang
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China
| | - Dechun Liu
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Yong Liu
- Department of Pomology, College of Agronomy, Jiangxi Agricultural University, Nanchang, 330045, China.
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13
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Wang Y, Liu M, Guo Z, Liang Y, Lu Y, Xu Y, Sun M. Comparative Physiological and Transcriptome Analysis of Crossostephium chinense Reveals Its Molecular Mechanisms of Salt Tolerance. Int J Mol Sci 2023; 24:16812. [PMID: 38069143 PMCID: PMC10706559 DOI: 10.3390/ijms242316812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
Crossostephium chinense is a wild species with strong salt tolerance that has great potential to improve the salt tolerance of cultivated chrysanthemums. Conversely, the unique salt-tolerant molecular mechanisms of Cr. chinense are still unclear. This study performed a comparative physiological and transcriptome analysis of Cr. chinense, Chrysanthemum lavandulifolium, and three hybrids to investigate the salt-tolerant molecular mechanisms of Cr. chinense. The physiological results showed that Cr. chinense maintained higher superoxide dismutase (SOD) activity, alleviating oxidative damage to the membrane. KEGG enrichment analysis showed that plant hormone signaling transduction and the MAPK signaling pathway were mostly enriched in Cr. chinense and hybrids under salt stress. Further weighted gene co-expression network analysis (WGCNA) of DEGs suggested that abscisic acid (ABA) signaling transduction may play a significant role in the salt-tolerant mechanisms of Cr. chinense and hybrids. The tissue-specific expression patterns of the candidate genes related to ABA signaling transduction and the MAPK signaling pathway indicate that genes related to ABA signaling transduction demonstrated significant expression levels under salt stress. This study offers important insights into exploring the underlying salt-tolerant mechanisms of Cr. chinense mediated by ABA signaling transduction and broadens our understanding of the breeding strategies for developing salt-tolerant cultivars utilizing salt-tolerant chrysanthemum germplasms.
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Affiliation(s)
| | | | | | | | | | | | - Ming Sun
- State Key Laboratory of Efficient Production of Forest Resources, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation and Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China; (Y.W.); (M.L.); (Z.G.); (Y.L.); (Y.L.); (Y.X.)
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14
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Wang M, Qin YY, Wei NN, Xue HY, Dai WS. Highly efficient Agrobacterium rhizogenes-mediated hairy root transformation in citrus seeds and its application in gene functional analysis. FRONTIERS IN PLANT SCIENCE 2023; 14:1293374. [PMID: 38023879 PMCID: PMC10644275 DOI: 10.3389/fpls.2023.1293374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023]
Abstract
Highly efficient genetic transformation technology is beneficial for plant gene functional research and molecular improvement breeding. However, the most commonly used Agrobacterium tumefaciens-mediated genetic transformation technology is time-consuming and recalcitrant for some woody plants such as citrus, hampering the high-throughput functional analysis of citrus genes. Thus, we dedicated to develop a rapid, simple, and highly efficient hairy root transformation system induced by Agrobacterium rhizogenes to analyze citrus gene function. In this report, a rapid, universal, and highly efficient hairy root transformation system in citrus seeds was described. Only 15 days were required for the entire workflow and the system was applicable for various citrus genotypes, with a maximum transformation frequency of 96.1%. After optimization, the transformation frequency of Citrus sinensis, which shows the lowest transformation frequency of 52.3% among four citrus genotypes initially, was increased to 71.4% successfully. To test the applicability of the hairy roots transformation system for gene functional analysis of citrus genes, we evaluated the subcellular localization, gene overexpression and gene editing in transformed hairy roots. Compared with the traditional transient transformation system performed in tobacco leaves, the transgenic citrus hairy roots displayed a more clear and specific subcellular fluorescence localization. Transcript levels of genes were significantly increased in overexpressing transgenic citrus hairy roots as compared with wild-type (WT). Additionally, hairy root transformation system in citrus seeds was successful in obtaining transformants with knocked out targets, indicating that the Agrobacterium rhizogenes-mediated transformation enables the CRISPR/Cas9-mediated gene editing. In summary, we established a highly efficient genetic transformation technology with non-tissue-culture in citrus that can be used for functional analysis such as protein subcellular localization, gene overexpression and gene editing. Since the material used for genetic transformation are roots protruding out of citrus seeds, the process of planting seedlings prior to transformation of conventional tissue culture or non-tissue-culture was eliminated, and the experimental time was greatly reduced. We anticipate that this genetic transformation technology will be a valuable tool for routine research of citrus genes in the future.
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Affiliation(s)
| | | | | | | | - Wen-Shan Dai
- China-USA Citrus Huanglongbing Joint Laboratory, National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, Jiangxi, China
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15
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Gao H, Ge W, Bai L, Zhang T, Zhao L, Li J, Shen J, Xu N, Zhang H, Wang G, Lin X. Proteomic analysis of leaves and roots during drought stress and recovery in Setaria italica L. FRONTIERS IN PLANT SCIENCE 2023; 14:1240164. [PMID: 37885665 PMCID: PMC10598781 DOI: 10.3389/fpls.2023.1240164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/13/2023] [Indexed: 10/28/2023]
Abstract
Drought is a major environmental factor that limits agricultural crop productivity and threatens food security. Foxtail millet is a model crop with excellent abiotic stress tolerance and is consequently an important subject for obtaining a better understanding of the molecular mechanisms underlying plant responses to drought and recovery. Here the physiological and proteomic responses of foxtail millet (cultivar Yugu1) leaves and roots to drought treatments and recovery were evaluated. Drought-treated foxtail millet exhibited increased relative electrolyte leakage and decreased relative water content and chlorophyll content compared to control and rewatering plants. A global analysis of protein profiles was evaluated for drought-treated and recovery treatment leaves and roots. We also identified differentially abundant proteins in drought and recovery groups, enabling comparisons between leaf and root tissue responses to the conditions. The principal component analysis suggested a clear distinction between leaf and root proteomes for the drought-treated and recovery treatment plants. Gene Ontology enrichment and co-expression analyses indicated that the biological responses of leaves differed from those in roots after drought and drought recovery. These results provide new insights and data resources to investigate the molecular basis of tissue-specific functional responses of foxtail millet during drought and recovery, thereby significantly informing crop breeding.
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Affiliation(s)
- Hui Gao
- Hebei Key Laboratory of Crop Stress Biology, Department of Life Science and Technology, College of Marine Resources and Environment, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, China
- Institute of Millet Crops, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals(Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs/Key Laboratory of Minor Cereal Crops of Hebei Province, Shijiazhuang, China
| | - Weina Ge
- College of Life Sciences, North China University of Science and Technology, Tangshan, China
| | - Lin Bai
- State Key Laboratory of Genetic Engineering and Collaborative Innovation Center for Genetics and Development, School of Life Sciences, Institute of Biomedical Sciences, Fudan University, Shanghai, China
| | - Ting Zhang
- Institute of Millet Crops, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals(Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs/Key Laboratory of Minor Cereal Crops of Hebei Province, Shijiazhuang, China
| | - Ling Zhao
- Institute of Millet Crops, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals(Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs/Key Laboratory of Minor Cereal Crops of Hebei Province, Shijiazhuang, China
| | - Jingshi Li
- Hebei Key Laboratory of Crop Stress Biology, Department of Life Science and Technology, College of Marine Resources and Environment, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, China
| | - Jiangjie Shen
- Hebei Key Laboratory of Crop Stress Biology, Department of Life Science and Technology, College of Marine Resources and Environment, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, China
| | - Ningwei Xu
- College of Landscape and Tourism, Hebei Agricultural University, Baoding, China
| | - Haoshan Zhang
- Institute of Millet Crops, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals(Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs/Key Laboratory of Minor Cereal Crops of Hebei Province, Shijiazhuang, China
| | - Genping Wang
- Institute of Millet Crops, Hebei Academy of Agriculture and Forestry Sciences/Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals(Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs/Key Laboratory of Minor Cereal Crops of Hebei Province, Shijiazhuang, China
| | - Xiaohu Lin
- Hebei Key Laboratory of Crop Stress Biology, Department of Life Science and Technology, College of Marine Resources and Environment, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei, China
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16
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Yu S, Yang L, Gao K, Zhou J, Lan X, Xie J, Zhong C. Dioscorea composita WRKY5 positively regulates AtSOD1 and AtABF2 to enhance drought and salt tolerances. PLANT CELL REPORTS 2023:10.1007/s00299-023-03038-1. [PMID: 37269374 DOI: 10.1007/s00299-023-03038-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 05/24/2023] [Indexed: 06/05/2023]
Abstract
KEY MESSAGE DcWRKY5 increases the antioxidant enzyme activity and proline accumulation, oppositely, reduces the accumulation of ROS and MDA, through directly activating the genes expression, finally enhances the salt and drought tolerance. Drought and salinity are two main environmental factors that limit the large-scale cultivation of the medicinal plant Dioscorea composita (D. composita). WRKY transcription factors (TFs) play vital roles in regulating drought and salt tolerance in plants. Nevertheless, the molecular mechanism of WRKY TF mediates drought and salt resistance of D. composita remains largely unknown. Here, we isolated and characterized a WRKY TF from D. composita, namely DcWRKY5, which was localized to the nucleus and bound to the W-box cis-acting elements. Expression pattern analysis showed that it was highly expressed in root and significantly up-regulated in the presence of salt, polyethylene glycol-6000 (PEG-6000) and abscisic acid (ABA). Heterologous expression of DcWRKY5 increased salt and drought tolerance in Arabidopsis, but was insensitive to ABA. In addition, compared with the wild type, the DcWRKY5 overexpressing transgenic lines had more proline, higher antioxidant enzyme (POD, SOD, and CAT) activities, less reactive oxygen species (ROS) and malondialdehyde (MDA). Correspondingly, the overexpression of DcWRKY5 modulated the expression of genes related to salt and drought stresses, such as AtSS1, AtP5CS1, AtCAT, AtSOD1, AtRD22, and AtABF2. Dual luciferase assay and Y1H were further confirmed that DcWRKY5 activate the promoter of AtSOD1 and AtABF2 through directly binding to the enrichment region of the W-box cis-acting elements. These results suggest that DcWRKY5 is a positive regulator of the drought and salt tolerance in D. composita and has potential applications in transgenic breeding.
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Affiliation(s)
- Shangjie Yu
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Luyin Yang
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Kaixiang Gao
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Jianchan Zhou
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Xin Lan
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Jun Xie
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
| | - Chunmei Zhong
- Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Technology Research Center of Agricultural and Forestry Biomass, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
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Li G, Zhang T, Yang L, Qin J, Yang Q, Cao Y, Luo J, Li X, Gao L, Chen Q, He X, Huang Y, Liu C, He L, Zheng J, Jiang K. Sterile line Dexiang074A enhances drought tolerance in hybrid rice. FRONTIERS IN PLANT SCIENCE 2023; 14:1054571. [PMID: 36968360 PMCID: PMC10033888 DOI: 10.3389/fpls.2023.1054571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Heterosis has been widely used in rice breeding, especially in improving rice yield. But it has rarely been studied in rice abiotic stress, including the drought tolerance, which is becoming one of the most important threaten in decreasing rice yield. Therefore, it is essential to studying the mechanism underlying heterosis in improving drought tolerance of rice breeding. In this study, Dexiang074B (074B) and Dexiang074A (074A) served as maintainer lines and sterile lines. Mianhui146 (R146), Chenghui727 (R727), LuhuiH103 (RH103), Dehui8258 (R8258), Huazhen (HZ), Dehui938 (R938), Dehui4923 (R4923), and R1391 served as restorer lines. The progeny were Dexiangyou (D146), Deyou4727 (D4727), Dexiang 4103 (D4103), Deyou8258 (D8258), Deyou Huazhen (DH), Deyou 4938 (D4938), Deyou 4923 (D4923), and Deyou 1391 (D1391). The restorer line and hybrid offspring were subjected to drought stress at the flowering stage. The results showed that Fv/Fm values were abnormal and oxidoreductase activity and MDA content were increased. However, the performance of hybrid progeny was significantly better than their respective restorer lines. Although the yield of hybrid progeny and restorer lines decreased simultaneously, the yield in hybrid offspring is significantly lower than the respective restorer line. Total soluble sugar content was consistent with the yield result, so we found that 074A can enhance drought tolerance in hybrid rice.
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Affiliation(s)
- Gengmi Li
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
- Biology and Molecular Biology Research Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Tao Zhang
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Li Yang
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Jian Qin
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Qianhua Yang
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Yingjiang Cao
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Jing Luo
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Xiangzhao Li
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Lei Gao
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Qian Chen
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
- Biology and Molecular Biology Research Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Xingping He
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Yong Huang
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Chuantao Liu
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Ling He
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Jiakui Zheng
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
| | - Kaifeng Jiang
- Key Laboratory of Southwest Rice Biology and Genetic Breeding, Ministry of Agriculture/Luzhou Branch of National Rice Improvement Center, Rice and Sorghum Research Institute, Sichuan Academy of Agricultural Sciences, Deyang, China
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Zhang M, Wang F, Hu Z, Wang X, Yi Q, Feng J, Zhao X, Zhu S. CcRR5 interacts with CcRR14 and CcSnRK2s to regulate the root development in citrus. FRONTIERS IN PLANT SCIENCE 2023; 14:1170825. [PMID: 37139114 PMCID: PMC10150009 DOI: 10.3389/fpls.2023.1170825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023]
Abstract
Response regulator (RR) is an important component of the cytokinin (CK) signal transduction system associated with root development and stress resistance in model plants. However, the function of RR gene and the molecular mechanism on regulating the root development in woody plants such as citrus remain unclear. Here, we demonstrate that CcRR5, a member of the type A RR, regulates the morphogenesis of root through interacting with CcRR14 and CcSnRK2s in citrus. CcRR5 is mainly expressed in root tips and young leaves. The activity of CcRR5 promoter triggered by CcRR14 was proved with transient expression assay. Seven SnRK2 family members with highly conserved domains were identified in citrus. Among them, CcSnRK2.3, CcSnRK2.6, CcSnRK2.7, and CcSnRK2.8 can interact with CcRR5 and CcRR14. Phenotypic analysis of CcRR5 overexpressed transgenic citrus plants indicated that the transcription level of CcRR5 was associated with root length and lateral root numbers. This was also correlated to the expression of root-related genes and thus confirmed that CcRR5 is involved in the root development. Taken together, the results of this study indicate that CcRR5 is a positive regulator of root growth and CcRR14 directly regulates the expression of CcRR5. Both CcRR5 and CcRR14 can interact with CcSnRK2s.
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Affiliation(s)
- Manman Zhang
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
| | - Fusheng Wang
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
| | - Zhou Hu
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
| | - Xiaoli Wang
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
| | - Qian Yi
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
| | - Jipeng Feng
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
| | - Xiaochun Zhao
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
- *Correspondence: Xiaochun Zhao, ; Shiping Zhu,
| | - Shiping Zhu
- Citrus Research Institute, Southwest University, Chongqing, China
- National Citrus Engineering Research Center, Southwest University, Chongqing, China
- *Correspondence: Xiaochun Zhao, ; Shiping Zhu,
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