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Li Z, Huang Y, Shen Z, Wu M, Huang M, Hong SB, Xu L, Zang Y. Advances in functional studies of plant MYC transcription factors. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2024; 137:195. [PMID: 39103657 DOI: 10.1007/s00122-024-04697-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 07/17/2024] [Indexed: 08/07/2024]
Abstract
Myelocytomatosis (MYC) transcription factors (TFs) belong to the basic helix-loop-helix (bHLH) family in plants and play a central role in governing a wide range of physiological processes. These processes encompass plant growth, development, adaptation to biotic and abiotic stresses, as well as secondary metabolism. In recent decades, significant strides have been made in comprehending the multifaceted regulatory functions of MYCs. This advancement has been achieved through the cloning of MYCs and the characterization of plants with MYC deficiencies or overexpression, employing comprehensive genome-wide 'omics' and protein-protein interaction technologies. MYCs act as pivotal components in integrating signals from various phytohormones' transcriptional regulators to orchestrate genome-wide transcriptional reprogramming. In this review, we have compiled current research on the role of MYCs as molecular switches that modulate signal transduction pathways mediated by phytohormones and phytochromes. This comprehensive overview allows us to address lingering questions regarding the interplay of signals in response to environmental cues and developmental shift. It also sheds light on the potential implications for enhancing plant resistance to diverse biotic and abiotic stresses through genetic improvements achieved by plant breeding and synthetic biology efforts.
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Affiliation(s)
- Zewei Li
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Yunshuai Huang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Zhiwei Shen
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Meifang Wu
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Mujun Huang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China
| | - Seung-Beom Hong
- Department of Biotechnology, University of Houston Clear Lake, Houston, TX, 77058-1098, USA
| | - Liai Xu
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
| | - Yunxiang Zang
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable, Ministry of Agriculture and Rural Affairs, Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, College of Horticulture Science, Zhejiang A&F University, Hangzhou, 311300, Zhejiang, China.
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Shi J, Wang Y, Fan X, Li R, Yu C, Peng Z, Gao Y, Liu Z, Duan L. A novel plant growth regulator B2 mediates drought resistance by regulating reactive oxygen species, phytohormone signaling, phenylpropanoid biosynthesis, and starch metabolism pathways in Carex breviculmis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 213:108860. [PMID: 38936070 DOI: 10.1016/j.plaphy.2024.108860] [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: 04/07/2024] [Revised: 06/02/2024] [Accepted: 06/18/2024] [Indexed: 06/29/2024]
Abstract
Drought is one of the most common environmental stressors that severely threatens plant growth, development, and productivity. B2 (2,4-dichloroformamide cyclopropane acid), a novel plant growth regulator, plays an essential role in drought adaptation, significantly enhancing the tolerance of Carex breviculmis seedlings. Its beneficial effects include improved ornamental value, sustained chlorophyll content, increased leaf dry weight, elevated relative water content, and enhanced root activity under drought conditions. B2 also directly scavenges hydrogen peroxide and superoxide anion contents while indirectly enhancing the activities of antioxidant enzymes (superoxide dismutase, peroxidase, catalase, and ascorbate peroxidase) to detoxify reactive oxygen species (ROS) oxidative damage. Transcriptome analysis demonstrated that B2 activates drought-responsive transcription factors (AP2/ERF-ERF, WRKY, and mTERF), leading to significant upregulation of genes associated with phenylpropanoid biosynthesis (HCT, POD, and COMT). Additionally, these transcription factors were found to suppress the degradation of starch. B2 regulates phytohormone signaling related-genes, leading to an increase in abscisic acid contents in drought-stressed plants. Collectively, these findings offer new insights into the intricate mechanisms underlying C. breviculmis' resistance to drought damage, highlighting the potential application of B2 for future turfgrass establishment and management with enhanced drought tolerance.
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Affiliation(s)
- Jiannan Shi
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
| | - Ye Wang
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China.
| | - Xifeng Fan
- Institute of Grassland Flowers and Ecology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China
| | - Runzhi Li
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
| | - Chunxin Yu
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
| | - Zhen Peng
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
| | - Yuerong Gao
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
| | - Ziyan Liu
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China
| | - Liusheng Duan
- Beijing Key Laboratory for Agricultural Application and New Technique, College of Plant Science and Technology, Beijing University of Agriculture, Beijing, 102206, China; Engineering Research Center of Plant Growth Regulator, Ministry of Education, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100093, China.
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Han K, Zhao Y, Liu J, Tian Y, El-Kassaby YA, Qi Y, Ke M, Sun Y, Li Y. Genome-wide investigation and analysis of NAC transcription factor family in Populus tomentosa and expression analysis under salt stress. PLANT BIOLOGY (STUTTGART, GERMANY) 2024; 26:764-776. [PMID: 38859551 DOI: 10.1111/plb.13657] [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: 11/07/2023] [Accepted: 04/20/2024] [Indexed: 06/12/2024]
Abstract
The NAC transcription factor family is one of the largest families of TFs in plants, and members of NAC gene family play important roles in plant growth and stress response. Recent release of the haplotype-resolved genome assembly of P. tomentosa provide a platform for NAC protein genome-wide analysis. A total of 270 NAC genes were identified and a comprehensive overview of the PtoNAC gene family is presented, including gene promoter, structure and conserved motif analyses, chromosome localization and collinearity analysis, protein phylogeny, expression pattern, and interaction analysis. The results indicate that protein length, molecular weight, and theoretical isoelectric points of the NAC TF family vary, while gene structure and motif are relatively conserved. Chromosome mapping analysis showed that the P. tomentosa NAC genes are unevenly distributed on 19 chromosomes. The interchromosomal evolutionary results indicate 12 pairs of tandem and 280 segmental duplications. Segmental duplication is possibly related to amplification of P. tomentosa NAC gene family. Expression patterns of 35 PtoNAC genes from P. tomentosa subgroup were analysed under high salinity, and seven NAC genes were induced by this treatment. Promoter and protein interaction network analyses showed that PtoNAC genes are closely associated with growth, development, and abiotic and biotic stress, especially salt stress. These results provide a meaningful reference for follow-up studies of the functional characteristics of NAC genes in the mechanism of stress response and their potential roles in development of P. tomentosa.
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Affiliation(s)
- K Han
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Y Zhao
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - J Liu
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Y Tian
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Y A El-Kassaby
- Department of Forest and Conservation Sciences Faculty of Forestry, The University of British Columbia, Vancouver, BC, Canada
| | - Y Qi
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - M Ke
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Y Sun
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
| | - Y Li
- National Engineering Research Center of Tree Breeding and Ecological Restoration, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, Engineering Technology Research Center of Black Locust of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, China
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Ye Q, Zheng L, Liu P, Liu Q, Ji T, Liu J, Gao Y, Liu L, Dong J, Wang T. The S-acylation cycle of transcription factor MtNAC80 influences cold stress responses in Medicago truncatula. THE PLANT CELL 2024; 36:2629-2651. [PMID: 38552172 PMCID: PMC11218828 DOI: 10.1093/plcell/koae103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/07/2024] [Indexed: 07/04/2024]
Abstract
S-acylation is a reversible post-translational modification catalyzed by protein S-acyltransferases (PATs), and acyl protein thioesterases (APTs) mediate de-S-acylation. Although many proteins are S-acylated, how the S-acylation cycle modulates specific biological functions in plants is poorly understood. In this study, we report that the S-acylation cycle of transcription factor MtNAC80 is involved in the Medicago truncatula cold stress response. Under normal conditions, MtNAC80 localized to membranes through MtPAT9-induced S-acylation. In contrast, under cold stress conditions, MtNAC80 translocated to the nucleus through de-S-acylation mediated by thioesterases such as MtAPT1. MtNAC80 functions in the nucleus by directly binding the promoter of the glutathione S-transferase gene MtGSTU1 and promoting its expression, which enables plants to survive under cold stress by removing excess malondialdehyde and H2O2. Our findings reveal an important function of the S-acylation cycle in plants and provide insight into stress response and tolerance mechanisms.
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Affiliation(s)
- Qinyi Ye
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
- College of Grassland Science and Technology, China Agricultural University, Beijing 100193, China
| | - Lihua Zheng
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Peng Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Qianwen Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Tuo Ji
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jinling Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yajuan Gao
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Li Liu
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jiangli Dong
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Tao Wang
- College of Biological Sciences, China Agricultural University, Beijing 100193, China
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Zhai Z, Ao Q, Yang L, Lu F, Cheng H, Fang Q, Li C, Chen Q, Yan J, Wei Y, Jiang YQ, Yang B. Rapeseed PP2C37 Interacts with PYR/PYL Abscisic Acid Receptors and Negatively Regulates Drought Tolerance. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:12445-12458. [PMID: 38771652 DOI: 10.1021/acs.jafc.4c00385] [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: 05/23/2024]
Abstract
Global water deficit is a severe abiotic stress threatening the yielding and quality of crops. Abscisic acid (ABA) is a phytohormone that mediates drought tolerance. Protein kinases and phosphatases function as molecular switches in eukaryotes. Protein phosphatases type 2C (PP2Cs) are a major family that play essential roles in ABA signaling and stress responses. However, the role and underlying mechanism of PP2C in rapeseed (Brassica napus L.) mediating drought response has not been reported yet. Here, we characterized a PP2C family member, BnaPP2C37, and its expression level was highly induced by ABA and dehydration treatments. It negatively regulates drought tolerance in rapeseed. We further identified that BnaPP2C37 interacted with multiple PYR/PYL receptors and a drought regulator BnaCPK5 (calcium-dependent protein kinase 5) through yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) assays. Specifically, BnaPYL1 and BnaPYL9 repress BnaPP2C37 phosphatase activity. Moreover, the pull-down assay and phosphatase assays show BnaPP2C37 interacts with BnaCPK5 to dephosphorylate BnaCPK5 and its downstream BnaABF3. Furthermore, a dual-luciferase assay revealed BnaPP2C37 transcript level was enhanced by BnaABF3 and BnaABF4, forming a negative feedback regulation to ABA response. In summary, we identified that BnaPP2C37 functions negatively in drought tolerance of rapeseed, and its phosphatase activity is repressed by BnaPYL1/9 whereas its transcriptional level is upregulated by BnaABF3/4.
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Affiliation(s)
- Zengkang Zhai
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Qianqian Ao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Liuqing Yang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Fangxiao Lu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Haokun Cheng
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Qinxin Fang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Chun Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Qinqin Chen
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Jingli Yan
- College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, Henan Province, People's Republic of China
| | - Yongsheng Wei
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Yuan-Qing Jiang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
| | - Bo Yang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, Northwest A & F University, Yangling, Shaanxi 712100, People's Republic of China
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Sun Q, Li X, Sun L, Sun M, Xu H, Zhou X. Plant hormones and phenolic acids response to UV-B stress in Rhododendron chrysanthum pall. Biol Direct 2024; 19:40. [PMID: 38807240 PMCID: PMC11134694 DOI: 10.1186/s13062-024-00483-0] [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: 08/26/2023] [Accepted: 05/21/2024] [Indexed: 05/30/2024] Open
Abstract
Our study aims to identify the mechanisms involved in regulating the response of Rhodoendron Chrysanthum Pall. (R. chrysanthum) leaves to UV-B exposure; phosphorylated proteomics and metabolomics for phenolic acids and plant hormones were integrated in this study. The results showed that UV-B stress resulted in the accumulation of salicylic acid and the decrease of auxin, jasmonic acid, abscisic acid, cytokinin and gibberellin in R. chrysanthum. The phosphorylated proteins that changed in plant hormone signal transduction pathway and phenolic acid biosynthesis pathway were screened by comprehensive metabonomics and phosphorylated proteomics. In order to construct the regulatory network of R. chrysanthum leaves under UV-B stress, the relationship between plant hormones and phenolic acid compounds was analyzed. It provides a rationale for elucidating the molecular mechanisms of radiation tolerance in plants.
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Affiliation(s)
- Qi Sun
- Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping, 136000, China
| | - Xiangqun Li
- Jilin Engineering Vocational College, Siping, China
| | - Li Sun
- Siping Central People's Hospital, Siping, China
| | - Mingyi Sun
- Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping, 136000, China
| | - Hongwei Xu
- Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping, 136000, China
| | - Xiaofu Zhou
- Jilin Provincial Key Laboratory of Plant Resource Science and Green Production, Jilin Normal University, Siping, 136000, 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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Yang X, Wang M, Zhou Q, Xu X, Li Y, Hou X, Xiao D, Liu T. BcABF1 Plays a Role in the Feedback Regulation of Abscisic Acid Signaling via the Direct Activation of BcPYL4 Expression in Pakchoi. Int J Mol Sci 2024; 25:3877. [PMID: 38612692 PMCID: PMC11011251 DOI: 10.3390/ijms25073877] [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: 02/15/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Abscisic acid-responsive element-binding factor 1 (ABF1), a key transcription factor in the ABA signal transduction process, regulates the expression of downstream ABA-responsive genes and is involved in modulating plant responses to abiotic stress and developmental processes. However, there is currently limited research on the feedback regulation of ABF1 in ABA signaling. This study delves into the function of BcABF1 in Pakchoi. We observed a marked increase in BcABF1 expression in leaves upon ABA induction. The overexpression of BcABF1 not only spurred Arabidopsis growth but also augmented the levels of endogenous IAA. Furthermore, BcABF1 overexpression in Arabidopsis significantly decreased leaf water loss and enhanced the expression of genes associated with drought tolerance in the ABA pathway. Intriguingly, we found that BcABF1 can directly activate BcPYL4 expression, a critical receptor in the ABA pathway. Similar to BcABF1, the overexpression of BcPYL4 in Arabidopsis also reduces leaf water loss and promotes the expression of drought and other ABA-responsive genes. Finally, our findings suggested a novel feedback regulation mechanism within the ABA signaling pathway, wherein BcABF1 positively amplifies the ABA signal by directly binding to and activating the BcPYL4 promoter.
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Affiliation(s)
- Xiaoxue Yang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
| | - Meiyun Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
| | - Qian Zhou
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
| | - Xinfeng Xu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
| | - Ying Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
| | - Xilin Hou
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
| | - Dong Xiao
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
| | - Tongkun Liu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (East China), State Key Laboratory of Crop Genetics & Germplasm Enhancement, Ministry of Agriculture and Rural Affairs of China, Engineering Research Center of Germplasm Enhancement and Utilization of Horticultural Crops, Ministry of Education of China, Nanjing Agricultural University, Nanjing 210095, China; (X.Y.); (M.W.); (Q.Z.); (X.X.); (Y.L.); (X.H.)
- Sanya Research Institute, Nanjing Agricultural University, Nanjing 210095, China
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9
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Yang F, Sun X, Wu G, He X, Liu W, Wang Y, Sun Q, Zhao Y, Xu D, Dai X, Ma W, Zeng J. Genome-Wide Identification and Expression Profiling of the ABF Transcription Factor Family in Wheat ( Triticum aestivum L.). Int J Mol Sci 2024; 25:3783. [PMID: 38612594 PMCID: PMC11011718 DOI: 10.3390/ijms25073783] [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: 02/18/2024] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/14/2024] Open
Abstract
Members of the abscisic acid (ABA)-responsive element (ABRE) binding factor (ABF) and ABA-responsive element binding protein (AREB) families play essential roles in the regulation of ABA signaling pathway activity and shape the ability of plants to adapt to a range of stressful environmental conditions. To date, however, systematic genome-wide analyses focused on the ABF/AREB gene family in wheat are lacking. Here, we identified 35 ABF/AREB genes in the wheat genome, designated TaABF1-TaABF35 according to their chromosomal distribution. These genes were further classified, based on their phylogenetic relationships, into three groups (A-C), with the TaABF genes in a given group exhibiting similar motifs and similar numbers of introns/exons. Cis-element analyses of the promoter regions upstream of these TaABFs revealed large numbers of ABREs, with the other predominant elements that were identified differing across these three groups. Patterns of TaABF gene expansion were primarily characterized by allopolyploidization and fragment duplication, with purifying selection having played a significant role in the evolution of this gene family. Further expression profiling indicated that the majority of the TaABF genes from groups A and B were highly expressed in various tissues and upregulated following abiotic stress exposure such as drought, low temperature, low nitrogen, etc., while some of the TaABF genes in group C were specifically expressed in grain tissues. Regulatory network analyses revealed that four of the group A TaABFs (TaABF2, TaABF7, TaABF13, and TaABF19) were centrally located in protein-protein interaction networks, with 13 of these TaABF genes being regulated by 11 known miRNAs, which play important roles in abiotic stress resistance such as drought and salt stress. The two primary upstream transcription factor types found to regulate TaABF gene expression were BBR/BPC and ERF, which have previously been reported to be important in the context of plant abiotic stress responses. Together, these results offer insight into the role that the ABF/AREB genes play in the responses of wheat to abiotic stressors, providing a robust foundation for future functional studies of these genes.
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Affiliation(s)
- Fuhui Yang
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Xuelian Sun
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Gang Wu
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Xiaoyan He
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Wenxing Liu
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Yongmei Wang
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Qingyi Sun
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Yan Zhao
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Dengan Xu
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Xuehuan Dai
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Wujun Ma
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying 257347, China
| | - Jianbin Zeng
- Shandong Provincial Key Laboratory of Dryland Farming Technology, College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
- Academy of Dongying Efficient Agricultural Technology and Industry on Saline and Alkaline Land in Collaboration with Qingdao Agricultural University, Dongying 257347, China
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10
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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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11
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Liu Y, Zhang Q, Chen D, Shi W, Gao X, Liu Y, Hu B, Wang A, Li X, An X, Yang Y, Li X, Liu Z, Wang J. Positive regulation of ABA signaling by MdCPK4 interacting with and phosphorylating MdPYL2/12 in Arabidopsis. JOURNAL OF PLANT PHYSIOLOGY 2024; 293:154165. [PMID: 38237440 DOI: 10.1016/j.jplph.2023.154165] [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: 10/08/2023] [Revised: 12/01/2023] [Accepted: 12/18/2023] [Indexed: 02/23/2024]
Abstract
The phytohormone abscisic acid (ABA) regulates plant growth and development and stress resistance through the ABA receptor PYLs. To date, no interaction between CPK and PYL has been reported, even in Arabidopsis and rice. In this study, we found that MdCPK4 from Malus domestica (Md for short) interacts with two MdPYLs, MdPYL2/12, in the nucleus and the cytoplasm in vivo and phosphorylates the latter in vitro as well. Compared with the wild type (WT), the MdCPK4- or MdPYL2/12-overexpressing Arabidopsis lines showed more sensitivity to ABA, and therefore stronger drought resistance. The ABA-related genes (ABF1, ABF2, ABF4, RD29A and SnRK2.2) were significantly upregulated in the overexpressing (OE) lines after ABA treatment. These results indicate that MdCPK4 and MdPYL2/12 act as positive regulators in response to ABA-mediated drought resistance in apple. Our results reveal the relationship between MdCPK4 and MdPYL2/12 in ABA signaling, which will further enrich the molecular mechanism of drought resistance in plants.
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Affiliation(s)
- Yingying Liu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Qian Zhang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Dixu Chen
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Wensen Shi
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Xuemeng Gao
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Yu Liu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Bo Hu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Anhu Wang
- Xichang University, Xichang, 615013, Sichuan, China
| | - Xiaoyi Li
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Xinyuan An
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Yi Yang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Xufeng Li
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Zhibin Liu
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Jianmei Wang
- Key Laboratory of Bio-Resources and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, China.
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12
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Zhang P, Liu D, Ma J, Sun C, Wang Z, Zhu Y, Zhang X, Liu Y. Genome-wide analysis and expression pattern of the ZoPP2C gene family in Zingiber officinale Roscoe. BMC Genomics 2024; 25:83. [PMID: 38245685 PMCID: PMC10799369 DOI: 10.1186/s12864-024-09966-w] [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: 11/19/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Protein phosphatases type 2C (PP2C) are heavily involved in plant growth and development, hormone-related signaling pathways and the response of various biotic and abiotic stresses. However, a comprehensive report identifying the genome-scale of PP2C gene family in ginger is yet to be published. RESULTS In this study, 97 ZoPP2C genes were identified based on the ginger genome. These genes were classified into 15 branches (A-O) according to the phylogenetic analysis and distributed unevenly on 11 ginger chromosomes. The proteins mainly functioned in the nucleus. Similar motif patterns and exon/intron arrangement structures were identified in the same subfamily of ZoPP2Cs. Collinearity analysis indicated that ZoPP2Cs had 33 pairs of fragment duplicated events uniformly distributed on the corresponding chromosomes. Furthermore, ZoPP2Cs showed greater evolutionary proximity to banana's PP2Cs. The forecast of cis-regulatory elements and transcription factor binding sites demonstrated that ZoPP2Cs participate in ginger growth, development, and responses to hormones and stresses. ZoERFs have plenty of binding sites of ZoPP2Cs, suggesting a potential synergistic contribution between ZoERFs and ZoPP2Cs towards regulating growth/development and adverse conditions. The protein-protein interaction network displayed that five ZoPP2Cs (9/23/26/49/92) proteins have robust interaction relationship and potential function as hub proteins. Furthermore, the RNA-Seq and qRT-PCR analyses have shown that ZoPP2Cs exhibit various expression patterns during ginger maturation and responses to environmental stresses such as chilling, drought, flooding, salt, and Fusarium solani. Notably, exogenous application of melatonin led to notable up-regulation of ZoPP2Cs (17/59/11/72/43) under chilling stress. CONCLUSIONS Taken together, our investigation provides significant insights of the ginger PP2C gene family and establishes the groundwork for its functional validation and genetic engineering applications.
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Affiliation(s)
- Pan Zhang
- College of Horticulture and Gardening, Spice Crops Research Institute, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Deqi Liu
- College of Horticulture and Gardening, Spice Crops Research Institute, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Jiawei Ma
- College of Horticulture and Gardening, Spice Crops Research Institute, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Chong Sun
- Special Plants Institute, College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Zhaofei Wang
- Special Plants Institute, College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Yongxing Zhu
- College of Horticulture and Gardening, Spice Crops Research Institute, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Xuemei Zhang
- College of Horticulture and Gardening, Spice Crops Research Institute, Yangtze University, Jingzhou, 434025, Hubei, China.
| | - Yiqing Liu
- College of Horticulture and Gardening, Spice Crops Research Institute, Yangtze University, Jingzhou, 434025, Hubei, China.
- Special Plants Institute, College of Landscape Architecture and Life Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China.
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13
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Tang H, Jing D, Liu C, Xie X, Zhang L, Chen X, Li C. Genome-Wide Identification and Expression Analyses of the FAR1/FHY3 Gene Family Provide Insight into Inflorescence Development in Maize. Curr Issues Mol Biol 2024; 46:430-449. [PMID: 38248329 PMCID: PMC10814199 DOI: 10.3390/cimb46010027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/28/2023] [Accepted: 12/31/2023] [Indexed: 01/23/2024] Open
Abstract
As transcription factors derived from transposase, FAR-RED IMPAIRED RESPONSE1 (FAR1) and its homolog FHY3 play crucial roles in the regulation of light signaling and various stress responses by coordinating the expression of downstream target genes. Despite the extensive investigation of the FAR1/FHY3 family in Arabidopsis thaliana and other species, a comprehensive examination of these genes in maize has not been conducted thus far. In this study, we employed a genomic mining approach to identify 16 ZmFAR1 genes in the maize inbred line B73, which were further classified into five subgroups based on their phylogenetic relationships. The present study characterized the predicted polypeptide sequences, molecular weights, isoelectric points, chromosomal distribution, gene structure, conserved motifs, subcellular localizations, phylogenetic relationships, and cis-regulatory elements of all members belonging to the ZmFAR1 family. Furthermore, the tissue-specific expression of the 16 ZmFAR1 genes was analyzed using RNA-seq, and their expression patterns under far-red light conditions were validated in the ear and tassel through qRT-qPCR. The observed highly temporal and spatial expression patterns of these ZmFAR1 genes were likely associated with their specific functional capabilities under different light conditions. Further analysis revealed that six ZmFAR1 genes (ZmFAR1-1, ZmFAR1-10, ZmFAR1-11, ZmFAR1-12, ZmFAR1-14, and ZmFAR1-15) exhibited a response to simulated shading treatment and actively contributed to the development of maize ears. Through the integration of expression quantitative trait loci (eQTL) analyses and population genetics, we identified the presence of potential causal variations in ZmFAR1-14 and ZmFAR1-9, which play a crucial role in regulating the kernel row number and kernel volume weight, respectively. In summary, this study represents the initial identification and characterization of ZmFAR1 family members in maize, uncovering the functional variation in candidate regulatory genes associated with the improvement of significant agronomic traits during modern maize breeding.
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Affiliation(s)
- Huaijun Tang
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (H.T.); (C.L.); (X.X.); (L.Z.)
| | - De Jing
- Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
| | - Cheng Liu
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (H.T.); (C.L.); (X.X.); (L.Z.)
| | - Xiaoqing Xie
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (H.T.); (C.L.); (X.X.); (L.Z.)
| | - Lei Zhang
- Institute of Grain Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China; (H.T.); (C.L.); (X.X.); (L.Z.)
| | - Xunji Chen
- Institute of Nuclear and Biotechnology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Changyu Li
- Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China;
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14
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Zeng J, Wu C, Ye X, Zhou J, Chen Y, Li L, Lin M, Wang S, Liu S, Yan Y, Tie W, Yang J, Yan F, Zeng L, Liu Y, Hu W. MePP2C24, a cassava (Manihot esculenta) gene encoding protein phosphatase 2C, negatively regulates drought stress and abscisic acid responses in transgenic Arabidopsis thaliana. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108291. [PMID: 38141400 DOI: 10.1016/j.plaphy.2023.108291] [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: 06/13/2023] [Revised: 12/06/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Abscisic acid (ABA) signaling plays a crucial role in plant development and response to abiotic/biotic stress. However, the function and regulation of protein phosphatase 2C (PP2C), a key component of abscisic acid signaling, under abiotic stress are still unknown in cassava, a drought-tolerant crop. In this study, a cassava PP2C gene (MePP2C24) was cloned and characterized. The MePP2C24 transcripts increased in response to mannitol, NaCl, and ABA. Overexpression of MePP2C24 in Arabidopsis resulted in increased sensitivity to drought stress and decreased sensitivity to exogenous ABA. This was demonstrated by transgenic lines having higher levels of malondialdehyde (MDA), ion leakage (IL), and reactive oxygen species (ROS), lower activities of catalase (CAT) and peroxidase (POD), and lower proline content than wild type (WT) under drought stress. Moreover, MePP2C24 overexpression caused decrease in expression of drought-responsive genes related to ABA signaling pathway. In addition, MePP2C24 was localized in the cell nucleus and showed self-activation. Furthermore, many MePYLs (MePYL1, MePYL4, MePYL7-9, and MePYL11-13) could interact with MePP2C24 in the presence of ABA, and MePYL1 interacted with MePP2C24 in both the presence and absence of ABA. Additionally, MebZIP11 interacted with the promoter of MePP2C24 and exerted a suppressive effect. Taken together, our results suggest that MePP2C24 acts as a negative regulator of drought tolerance and ABA response.
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Affiliation(s)
- Jian Zeng
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China.
| | - Chunlai Wu
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Institute of Scientific and Technical Information, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China; The Genetic Engineering International Cooperation Base of Chinese Ministry of Science and Technology, Key Laboratory of Molecular Biophysics of Chinese Ministry of Education, College of Life Science and Technology, Huazhong University of Science & Technology, Wuhan, 430074, China; Hainan Key Laboratory for Protection and Utilization of Tropical Bioresources, Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China
| | - Xiaoxue Ye
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Institute of Scientific and Technical Information, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China; Hainan Key Laboratory for Protection and Utilization of Tropical Bioresources, Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China
| | - Jiewei Zhou
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China
| | - Yingtong Chen
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China
| | - Lizhen Li
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China
| | - Man Lin
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China
| | - Shuting Wang
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China
| | - Siwen Liu
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China; State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, 510642, China
| | - Yan Yan
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Institute of Scientific and Technical Information, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China
| | - Weiwei Tie
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Institute of Scientific and Technical Information, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China
| | - Jinghao Yang
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Institute of Scientific and Technical Information, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China
| | - Fei Yan
- Shaanxi Provincial Bioresource Key Laboratory, College of Biological Science and Engineering, Shaanxi University of Technology, Hanzhong, 723000, China
| | - Liwang Zeng
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Institute of Scientific and Technical Information, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China.
| | - Yujia Liu
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, Guangdong, China.
| | - Wei Hu
- National Key Laboratory for Tropical Crop Breeding, Institute of Tropical Bioscience and Biotechnology, Institute of Scientific and Technical Information, Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China; Hainan Key Laboratory for Protection and Utilization of Tropical Bioresources, Hainan Institute for Tropical Agricultural Resources, Chinese Academy of Tropical Agricultural Sciences, Haikou, 517101, China.
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15
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Jiang S, Zhang JX, Shen WL, Lu Y, Zhou SL, Dong XM, Liao MJ, Bi ZF, Hu Q, Yao W, Zhang MQ, Gao SJ, Xiao SH. Genome-wide identification of GTE family proteins in sugarcane (Saccharum spontaneum) reveals that SsGTEL3a confers drought tolerance. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 205:108169. [PMID: 37977028 DOI: 10.1016/j.plaphy.2023.108169] [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: 09/05/2023] [Revised: 10/29/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023]
Abstract
The bromodomain is a highly conserved protein domain that specifically binds to acetylated lysine residues in histones, thereby activating transcription of target genes. Although some progress in Global Transcription Factor Group E (GTE) has been achieved in numerous animals and a few plant species, no systematic analysis of GTE gene families has been reported yet in sugarcane. In our study, 37 GTE and GTE-Like (GTEL) genes were characterized in the Saccharum spontaneum. All SsGTE/SsGTEL members were heterogeneously located on all chromosomes of the sugarcane genome and divided into five groups. Transcriptome data showed that SsGTEL3a was expressed at significantly higher levels under drought stress in drought-resistant varieties than in drought-sensitive varieties. Moreover, the overexpression of SsGTEL3a significantly improved the drought tolerance in Arabidopsis through improving the scavenging ability of reactive oxygen species. Additionally, an interaction between ScFAR1 and SsGTEL3a was identified, with ScFAR1 showing a positive response to drought stress in bacterium. In summary, this systematic analysis of GTE gene family in sugarcane and functional research of SsGTEL3a broadened deeper insight into their evolutionary dynamics and functional properties and provided new candidate genes for drought-resistant molecular breeding of sugarcane.
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Affiliation(s)
- Shuo Jiang
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Jin-Xu Zhang
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Wen-Long Shen
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Yan Lu
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Shao-Li Zhou
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Xian-Man Dong
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Ming-Jing Liao
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Zhao-Fu Bi
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Qin Hu
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Wei Yao
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Mu-Qing Zhang
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - San-Ji Gao
- National Engineering Research Center for Sugarcane, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
| | - Sheng-Hua Xiao
- State Key Lab for Conservation and Utilization of Subtropical Agri-Biological Resources, Guangxi Key Lab for Sugarcane Biology, College of Agriculture, Guangxi University, Nanning, 530004, China.
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16
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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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17
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Zheng L, Chen Y, Ding L, Zhou Y, Xue S, Li B, Wei J, Wang H. The transcription factor MYB156 controls the polar stiffening of guard cell walls in poplar. THE PLANT CELL 2023; 35:3757-3781. [PMID: 37437118 PMCID: PMC10533337 DOI: 10.1093/plcell/koad198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 07/14/2023]
Abstract
The mechanical properties of guard cells have major effects on stomatal functioning. Reinforced stiffness in the stomatal polar regions was recently proposed to play an important role in stomatal function, but the underlying molecular mechanisms remain elusive. Here, we used genetic and biochemical approaches in poplar (Populus spp.) to show that the transcription factor MYB156 controls pectic homogalacturonan-based polar stiffening through the downregulation of the gene encoding pectin methylesterase 6 (PME6). Loss of MYB156 increased the polar stiffness of stomata, thereby enhancing stomatal dynamics and response speed to various stimuli. In contrast, overexpression of MYB156 resulted in decreased polar stiffness and impaired stomatal dynamics, accompanied by smaller leaves. Polar stiffening functions in guard cell dynamics in response to changing environmental conditions by maintaining normal stomatal morphology during stomatal movement. Our study revealed the structure-function relationship of the cell wall of guard cells in stomatal dynamics, providing an important means for improving the stomatal performance and drought tolerance of plants.
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Affiliation(s)
- Lin Zheng
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Yajuan Chen
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Liping Ding
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Ying Zhou
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Shanshan Xue
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Biying Li
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Jianhua Wei
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Hongzhi Wang
- Beijing Key Laboratory of Agricultural Genetic Resources and Biotechnology, Institute of Biotechnology, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
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18
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Du J, Zhu X, He K, Kui M, Zhang J, Han X, Fu Q, Jiang Y, Hu Y. CONSTANS interacts with and antagonizes ABF transcription factors during salt stress under long-day conditions. PLANT PHYSIOLOGY 2023; 193:1675-1694. [PMID: 37379562 DOI: 10.1093/plphys/kiad370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/30/2023]
Abstract
CONSTANS (CO) is a critical regulator of flowering that combines photoperiodic and circadian signals in Arabidopsis (Arabidopsis thaliana). CO is expressed in multiple tissues, including seedling roots and young leaves. However, the roles and underlying mechanisms of CO in modulating physiological processes outside of flowering remain obscure. Here, we show that the expression of CO responds to salinity treatment. CO negatively mediated salinity tolerance under long-day (LD) conditions. Seedlings from co-mutants were more tolerant to salinity stress, whereas overexpression of CO resulted in plants with reduced tolerance to salinity stress. Further genetic analyses revealed the negative involvement of GIGANTEA (GI) in salinity tolerance requires a functional CO. Mechanistic analysis demonstrated that CO physically interacts with 4 critical basic leucine zipper (bZIP) transcription factors; ABSCISIC ACID-RESPONSIVE ELEMENT BINDING FACTOR1 (ABF1), ABF2, ABF3, and ABF4. Disrupting these ABFs made plants hypersensitive to salinity stress, demonstrating that ABFs enhance salinity tolerance. Moreover, ABF mutations largely rescued the salinity-tolerant phenotype of co-mutants. CO suppresses the expression of several salinity-responsive genes and influences the transcriptional regulation function of ABF3. Collectively, our results show that the LD-induced CO works antagonistically with ABFs to modulate salinity responses, thus revealing how CO negatively regulates plant adaptation to salinity stress.
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Affiliation(s)
- Jiancan Du
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Xiang Zhu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- Institute for Laboratory Animal Research, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Kunrong He
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengyi Kui
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juping Zhang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao Han
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Qiantang Fu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanjuan Jiang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanru Hu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
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19
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Deng X, Ahmad B, Deng J, Liu L, Lu X, Fan Z, Zha X, Pan Y. MaABI5 and MaABF1 transcription factors regulate the expression of MaJOINTLESS during fruit abscission in mulberry ( Morus alba L.). FRONTIERS IN PLANT SCIENCE 2023; 14:1229811. [PMID: 37670871 PMCID: PMC10475957 DOI: 10.3389/fpls.2023.1229811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 08/02/2023] [Indexed: 09/07/2023]
Abstract
Mulberry holds significant economic value. However, during the ripening stage of its fruit, the phenomenon of abscission, resulting in heavy fruit drop, can severely impact the yield. The formation of off-zone structures is a critical factor in the fruit abscission process, and this process is regulated by multiple transcription factors. One such key gene that plays a significant role in the development of the off-zone in the model plant tomato is JOINTLESS, which promotes the expression of abscission-related genes and regulates the differentiation of abscission zone tissue cells. However, there is a lack of information about fruit abscission mechanism in mulberry. Here, we analyzed the MaJOINTLESS promoter and identified the upstream regulators MaABF1 and MaABI5. These two regulators showed binding with MaJOINTLESS promoter MaABF1 (the ABA Binding Factor/ABA-Responsive Element Binding Proteins) activated the expression of MaJOINTLESS, while MaABI5 (ABSCISIC ACID-INSENSITIVE 5) inhibited the expression of MaJOINTLESS. Finally, the differentially expressed genes (DEGs) were analyzed by transcriptome sequencing to investigate the expression and synergistic relationship of endogenous genes in mulberry during abscission. GO classification and KEGG pathway enrichment analysis showed that most of the DEGs were concentrated in MAPK signaling pathway, flavonoid biosynthesis, citric acid cycle, phytohormone signaling, amino acid biosynthesis, and glycolysis. These results provide a theoretical basis for subsequent in-depth study of physiological fruit abscission in mulberry.
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Affiliation(s)
- Xuan Deng
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Bilal Ahmad
- State Key Laboratory of Tropical Crop Breeding, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Guangdong Laboratory of Lingnan Modern Agriculture, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
- Key Laboratory of Synthetic Biology, Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Jing Deng
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Lianlian Liu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Xiuping Lu
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Zelin Fan
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Xingfu Zha
- State Key Laboratory of Resource Insects, Southwest University, Chongqing, China
| | - Yu Pan
- College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
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20
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Han R, Ma L, Lv Y, Qi L, Peng J, Li H, Zhou Y, Song P, Duan J, Li J, Li Z, Terzaghi W, Guo Y, Li J. SALT OVERLY SENSITIVE2 stabilizes phytochrome-interacting factors PIF4 and PIF5 to promote Arabidopsis shade avoidance. THE PLANT CELL 2023; 35:2972-2996. [PMID: 37119311 PMCID: PMC10396385 DOI: 10.1093/plcell/koad119] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 03/08/2023] [Accepted: 04/10/2023] [Indexed: 06/19/2023]
Abstract
Sun-loving plants trigger the shade avoidance syndrome (SAS) to compete against their neighbors for sunlight. Phytochromes are plant red (R) and far-red (FR) light photoreceptors that play a major role in perceiving the shading signals and triggering SAS. Shade induces a reduction in the level of active phytochrome B (phyB), thus increasing the abundance of PHYTOCHROME-INTERACTING FACTORS (PIFs), a group of growth-promoting transcription factors. However, whether other factors are involved in modulating PIF activity in the shade remains largely obscure. Here, we show that SALT OVERLY SENSITIVE2 (SOS2), a protein kinase essential for salt tolerance, positively regulates SAS in Arabidopsis thaliana. SOS2 directly phosphorylates PIF4 and PIF5 at a serine residue close to their conserved motif for binding to active phyB. This phosphorylation thus decreases their interaction with phyB and posttranslationally promotes PIF4 and PIF5 protein accumulation. Notably, the role of SOS2 in regulating PIF4 and PIF5 protein abundance and SAS is more prominent under salt stress. Moreover, phyA and phyB physically interact with SOS2 and promote SOS2 kinase activity in the light. Collectively, our study uncovers an unexpected role of salt-activated SOS2 in promoting SAS by modulating the phyB-PIF module, providing insight into the coordinated response of plants to salt stress and shade.
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Affiliation(s)
- Run Han
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Liang Ma
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yang Lv
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Lijuan Qi
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jing Peng
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Hong Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yangyang Zhou
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Pengyu Song
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jie Duan
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jianfang Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - William Terzaghi
- Department of Biology, Wilkes University, Wilkes-Barre, PA 18766, USA
| | - Yan Guo
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Jigang Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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21
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Wang J, Li C, Li L, Gao L, Hu G, Zhang Y, Reynolds MP, Zhang X, Jia J, Mao X, Jing R. DIW1 encoding a clade I PP2C phosphatase negatively regulates drought tolerance by de-phosphorylating TaSnRK1.1 in wheat. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:1918-1936. [PMID: 37158049 DOI: 10.1111/jipb.13504] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/05/2023] [Accepted: 05/08/2023] [Indexed: 05/10/2023]
Abstract
Drought seriously impacts wheat production (Triticum aestivum L.), while the exploitation and utilization of genes for drought tolerance are insufficient. Leaf wilting is a direct reflection of drought tolerance in plants. Clade A PP2Cs are abscisic acid (ABA) co-receptors playing vital roles in the ABA signaling pathway, regulating drought response. However, the roles of other clade PP2Cs in drought tolerance, especially in wheat, remain largely unknown. Here, we identified a gain-of-function drought-induced wilting 1 (DIW1) gene from the wheat Aikang 58 mutant library by map-based cloning, which encodes a clade I protein phosphatase 2C (TaPP2C158) with enhanced protein phosphatase activity. Phenotypic analysis of overexpression and CRISPR/Cas9 mutant lines demonstrated that DIW1/TaPP2C158 is a negative regulator responsible for drought resistance. We found that TaPP2C158 directly interacts with TaSnRK1.1 and de-phosphorylates it, thus inactivating the TaSnRK1.1-TaAREB3 pathway. TaPP2C158 protein phosphatase activity is negatively correlated with ABA signaling. Association analysis suggested that C-terminal variation of TaPP2C158 changing protein phosphatase activity is highly correlated with the canopy temperature, and seedling survival rate under drought stress. Our data suggest that the favorable allele with lower phosphatase activity of TaPP2C158 has been positively selected in Chinese breeding history. This work benefits us in understanding the molecular mechanism of wheat drought tolerance, and provides elite genetic resources and molecular markers for improving wheat drought tolerance.
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Affiliation(s)
- Jingyi Wang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chaonan Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Long Li
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Lifeng Gao
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ge Hu
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yanfei Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Matthew P Reynolds
- International Maize and Wheat Improvement Center, Texcoco, 56237, Mexico
| | - Xueyong Zhang
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jizeng Jia
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xinguo Mao
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ruilian Jing
- National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
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22
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Wang J, Wang C, Wang T, Zhang S, Yan K, Yang G, Wu C, Zheng C, Huang J. Tyrosylprotein sulfotransferase suppresses ABA signaling via sulfation of SnRK2.2/2.3/2.6. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:1846-1851. [PMID: 37052306 DOI: 10.1111/jipb.13493] [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: 12/13/2022] [Accepted: 04/07/2023] [Indexed: 05/17/2023]
Abstract
Phytohormone abscisic acid (ABA) plays vital roles in stress tolerance, while long-term overactivation of ABA signaling suppresses plant growth and development. However, the braking mechanism of ABA responses is not clear. Protein tyrosine sulfation catalyzed by tyrosylprotein sulfotransferase (TPST) is a critical post-translational modification. Through genetic screening, we identified a tpst mutant in Arabidopsis that was hypersensitive to ABA. In-depth analysis revealed that TPST could interact with and sulfate SnRK2.2/2.3/2.6, which accelerated their degradation and weakened the ABA signaling. Taken together, these findings uncovered a novel mechanism of desensitizing ABA responses via protein sulfation.
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Affiliation(s)
- Jun Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
- Department of Food Science and Engineering, Shandong Agriculture and Engineering University, Jinan, 250100, China
| | - Chunyan Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Tianrun Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Shizhong Zhang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Kang Yan
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Guodong Yang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Changai Wu
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Chengchao Zheng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
| | - Jinguang Huang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, 271018, China
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23
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Alabd A, Cheng H, Ahmad M, Wu X, Peng L, Wang L, Yang S, Bai S, Ni J, Teng Y. ABRE-BINDING FACTOR3-WRKY DNA-BINDING PROTEIN44 module promotes salinity-induced malate accumulation in pear. PLANT PHYSIOLOGY 2023; 192:1982-1996. [PMID: 36932703 PMCID: PMC10315288 DOI: 10.1093/plphys/kiad168] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Malate impacts fruit acidity and plays a vital role in stress tolerance. Malate accumulation is induced by salinity in various plants as a metabolite in coping with this stress. However, the exact molecular mechanism responsible for salinity-induced malate accumulation remains unclear. Here, we determined that salinity treatment induces malate accumulation in pear (Pyrus spp.) fruit, calli, and plantlets compared to the control. Genetic and biochemical analyses established the key roles of PpWRKY44 and ABRE-BINDING FACTOR3 (PpABF3) transcription factors in promoting malate accumulation in response to salinity. We found that PpWRKY44 is involved in salinity-induced malate accumulation by directly binding to a W-box on the promoter of the malate-associated gene aluminum-activated malate transporter 9 (PpALMT9) to activate its expression. A series of in-vivo and in-vitro assays revealed that the G-box cis-element in the promoter of PpWRKY44 was targeted by PpABF3, which further enhanced salinity-induced malate accumulation. Taken together, these findings suggest that PpWRKY44 and PpABF3 play positive roles in salinity-induced malate accumulation in pears. This research provides insights into the molecular mechanism by which salinity affects malate accumulation and fruit quality.
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Affiliation(s)
- Ahmed Alabd
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Department of Pomology, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
| | - Haiyan Cheng
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Mudassar Ahmad
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xinyue Wu
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lin Peng
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lu Wang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Shulin Yang
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Songling Bai
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Junbei Ni
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yuanwen Teng
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Hainan Institute of Zhejiang University, Sanya, Hainan 572025, China
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24
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Cerqueira JVA, de Andrade MT, Rafael DD, Zhu F, Martins SVC, Nunes-Nesi A, Benedito V, Fernie AR, Zsögön A. Anthocyanins and reactive oxygen species: a team of rivals regulating plant development? PLANT MOLECULAR BIOLOGY 2023; 112:213-223. [PMID: 37351824 PMCID: PMC10352431 DOI: 10.1007/s11103-023-01362-4] [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: 09/30/2022] [Accepted: 05/22/2023] [Indexed: 06/24/2023]
Abstract
Anthocyanins are a family of water-soluble vacuolar pigments present in almost all flowering plants. The chemistry, biosynthesis and functions of these flavonoids have been intensively studied, in part due to their benefit for human health. Given that they are efficient antioxidants, intense research has been devoted to studying their possible roles against damage caused by reactive oxygen species (ROS). However, the redox homeostasis established between antioxidants and ROS is important for plant growth and development. On the one hand, high levels of ROS can damage DNA, proteins, and lipids, on the other, they are also required for cell signaling, plant development and stress responses. Thus, a balance is needed in which antioxidants can remove excessive ROS, while not precluding ROS from triggering important cellular signaling cascades. In this article, we discuss how anthocyanins and ROS interact and how a deeper understanding of the balance between them could help improve plant productivity, nutritional value, and resistance to stress, while simultaneously maintaining proper cellular function and plant growth.
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Affiliation(s)
- João Victor A Cerqueira
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Moab T de Andrade
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Diego D Rafael
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Feng Zhu
- Max-Planck-Institute for Molecular Plant Physiology, 14476, Potsdam, Germany
- Key Laboratory of Horticultural Plant Biology, Ministry of Education, National R&D Center for Citrus Preservation, Huazhong Agricultural University, Wuhan, 430070, China
| | - Samuel V C Martins
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Adriano Nunes-Nesi
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
| | - Vagner Benedito
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, 26506, USA
| | - Alisdair R Fernie
- Max-Planck-Institute for Molecular Plant Physiology, 14476, Potsdam, Germany
| | - Agustin Zsögön
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil
- Max-Planck-Institute for Molecular Plant Physiology, 14476, Potsdam, Germany
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Jin D, Li S, Li Z, Yang L, Han X, Hu Y, Jiang Y. Arabidopsis ABRE-binding factors modulate salinity-induced inhibition of root hair growth by interacting with and suppressing RHD6. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 332:111728. [PMID: 37160206 DOI: 10.1016/j.plantsci.2023.111728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 05/02/2023] [Accepted: 05/06/2023] [Indexed: 05/11/2023]
Abstract
Soil salinity causes crop losses worldwide. Root hairs are the primary targets of salt stress, however, the signaling networks involved in the precise regulation of root hair growth and development by salinity are poorly understood. Here, we confirmed that salt stress inhibits the number and length of root hairs in Arabidopsis. We found that the master regulator of root hair development and growth, the RHD6 transcription factor, is involved in this process, as salt treatment largely compromised root hair overaccumulation in RHD6-overexpressing plants. Yeast-two-hybrid and co-immunoprecipitation analyses revealed that RHD6 physically interacts with ABF proteins, the master transcription factors in abscisic acid signaling, which is involved in tolerance to several stresses including salinity. Phenotypic analyses showed that ABF proteins, which function upstream of RHD6, positively modulate the salinity-induced inhibition of root hair development. Further analyses showed that ABF3 suppresses the transcriptional activation activity of RHD6, thereby regulating the expression of genes related to root hair development. Overexpression of ABF3 reduced the root hair-overgrowing phenotype of RHD6-overexpressing plants. Collectively, our results demonstrate an essential signaling module in which ABF proteins directly suppress the transcriptional activation activity of RHD6 to reduce the length and number of root hairs under salt stress conditions.
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Affiliation(s)
- Dongjie Jin
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaoqin Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Zhipeng Li
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lingmin Yang
- State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China
| | - Xiao Han
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanru Hu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Yanjuan Jiang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan, Yunnan University, Kunming, China.
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Song J, Sun P, Kong W, Xie Z, Li C, Liu JH. SnRK2.4-mediated phosphorylation of ABF2 regulates ARGININE DECARBOXYLASE expression and putrescine accumulation under drought stress. THE NEW PHYTOLOGIST 2023; 238:216-236. [PMID: 36210523 DOI: 10.1111/nph.18526] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Arginine decarboxylase (ADC)-mediated putrescine (Put) biosynthesis plays an important role in plant abiotic stress response. SNF1-related protein kinases 2s (SnRK2s) and abscisic acid (ABA)-response element (ABRE)-binding factors (ABFs), are core components of the ABA signaling pathway involved in drought stress response. We previously reported that ADC of Poncirus trifoliata (PtrADC) functions in drought tolerance. However, whether and how SnRK2 and ABF regulate PtrADC to modulate putrescine accumulation under drought stress remains largely unclear. Herein, we employed a set of physiological, biochemical, and molecular approaches to reveal that a protein complex composed of PtrSnRK2.4 and PtrABF2 modulates putrescine biosynthesis and drought tolerance by directly regulating PtrADC. PtrABF2 was upregulated by dehydration in an ABA-dependent manner. PtrABF2 activated PtrADC expression by directly and specifically binding to the ABRE core sequence within its promoter and positively regulated drought tolerance via modulating putrescine accumulation. PtrSnRK2.4 interacts with and phosphorylates PtrABF2 at Ser93. PtrSnRK2.4-mediated PtrABF2 phosphorylation is essential for the transcriptional regulation of PtrADC. Besides, PtrSnRK2.4 was shown to play a positive role in drought tolerance by facilitating putrescine synthesis. Taken together, this study sheds new light on the regulatory module SnRK2.4-ABF2-ADC responsible for fine-tuning putrescine accumulation under drought stress, which advances our understanding on transcriptional regulation of putrescine synthesis.
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Affiliation(s)
- Jie Song
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Peipei Sun
- School of Horticulture, Anhui Agricultural University, Hefei, 230036, China
| | - Weina Kong
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zongzhou Xie
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chunlong Li
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Ji-Hong Liu
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
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Pi K, Huang Y, Luo W, Zeng S, Mo Z, Duan L, Liu R. Overdominant expression of genes plays a key role in root growth of tobacco hybrids. FRONTIERS IN PLANT SCIENCE 2023; 14:1107550. [PMID: 36798711 PMCID: PMC9927235 DOI: 10.3389/fpls.2023.1107550] [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: 11/25/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Heterosis has greatly improved the yield and quality of crops. However, previous studies often focused on improving the yield and quality of the shoot system, while research on the root system was neglected. We determined the root numbers of 12 F1 hybrids, all of which showed strong heterosis, indicating that tobacco F1 hybrids have general heterosis. To understand its molecular mechanism, we selected two hybrids with strong heterosis, GJ (G70 × Jiucaiping No.2) and KJ (K326 × Jiucaiping No.2), and their parents for transcriptome analysis. There were 84.22% and 90.25% of the differentially expressed genes were overdominantly expressed. The enrichment analysis of these overdominantly expressed genes showed that "Plant hormone signal transduction", "Phenylpropanoid biosynthesis", "MAPK signaling pathway - plant", and "Starch and sucrose metabolism" pathways were associated with root development. We focused on the analysis of the biosynthetic pathways of auxin(AUX), cytokinins(CTK), abscisic acid(ABA), ethylene(ET), and salicylic acid(SA), suggesting that overdominant expression of these hormone signaling pathway genes may enhance root development in hybrids. In addition, Nitab4.5_0011528g0020、Nitab4.5_0003282g0020、Nitab4.5_0004384g0070 may be the genes involved in root growth. Genome-wide comparative transcriptome analysis enhanced our understanding of the regulatory network of tobacco root development and provided new ideas for studying the molecular mechanisms of tobacco root development.
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Affiliation(s)
- Kai Pi
- College of Tobacco, Guizhou University, Guiyang, China
- Key Laboratory of Tobacco Quality in Guizhou Province, Guiyang, China
| | - Ying Huang
- College of Tobacco, Guizhou University, Guiyang, China
- Key Laboratory of Tobacco Quality in Guizhou Province, Guiyang, China
| | - Wen Luo
- College of Tobacco, Guizhou University, Guiyang, China
- Key Laboratory of Tobacco Quality in Guizhou Province, Guiyang, China
| | - Shuaibo Zeng
- College of Tobacco, Guizhou University, Guiyang, China
- Key Laboratory of Tobacco Quality in Guizhou Province, Guiyang, China
| | - Zejun Mo
- College of Agriculture, Guizhou University, Guiyang, China
| | - Lili Duan
- College of Agriculture, Guizhou University, Guiyang, China
| | - Renxiang Liu
- College of Tobacco, Guizhou University, Guiyang, China
- Key Laboratory of Tobacco Quality in Guizhou Province, Guiyang, China
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28
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Genome-Wide Identification and Expression Analysis of the 4-Coumarate: CoA Ligase Gene Family in Solanum tuberosum. Int J Mol Sci 2023; 24:ijms24021642. [PMID: 36675157 PMCID: PMC9866895 DOI: 10.3390/ijms24021642] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/06/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
4-coumarate: CoA ligase (4CL) is not only involved in the biosynthetic processes of flavonoids and lignin in plants but is also closely related to plant tolerance to abiotic stress. UV irradiation can activate the expression of 4CL genes in plants, and the expression of 4CL genes changed significantly in response to different phytohormone treatments. Although the 4CL gene has been cloned in potatoes, there have been fewer related studies of the 4CL gene family on the potato genome-wide scale. In this study, a total of 10 potato 4CL genes were identified in the potato whole genome. Through multiple sequence alignment, phylogenetic analysis as well as gene structure analysis indicated that the potato 4CL gene family could be divided into two subgroups. Combined with promoter cis-acting element analysis, transcriptome data, and RT-qPCR results indicated that potato 4CL gene family was involved in potato response to white light, UV irradiation, ABA treatment, MeJA treatment, and PEG simulated drought stress. Abiotic stresses such as UV, ABA, MeJA, and PEG could promote the up-regulated expression of St4CL6 and St4CL8 but inhibits the expression of St4CL5. The above results will increase our understanding of the evolution and expression regulation of the potato 4CL gene family and provide reference value for further research on the molecular biological mechanism of 4CL participating in response to diverse environmental signals in potatoes.
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Zhang Y, Zhu J, Khan M, Wang Y, Xiao W, Fang T, Qu J, Xiao P, Li C, Liu JH. Transcription factors ABF4 and ABR1 synergistically regulate amylase-mediated starch catabolism in drought tolerance. PLANT PHYSIOLOGY 2023; 191:591-609. [PMID: 36102815 PMCID: PMC9806598 DOI: 10.1093/plphys/kiac428] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/07/2022] [Indexed: 05/08/2023]
Abstract
β-Amylase (BAM)-mediated starch degradation is a main source of soluble sugars that help plants adapt to environmental stresses. Here, we demonstrate that dehydration-induced expression of PtrBAM3 in trifoliate orange (Poncirus trifoliata (L.) Raf.) functions positively in drought tolerance via modulation of starch catabolism. Two transcription factors, PtrABF4 (P. trifoliata abscisic acid-responsive element-binding factor 4) and PtrABR1 (P. trifoliata ABA repressor 1), were identified as upstream transcriptional activators of PtrBAM3 through yeast one-hybrid library screening and protein-DNA interaction assays. Both PtrABF4 and PtrABR1 played a positive role in plant drought tolerance by modulating soluble sugar accumulation derived from BAM3-mediated starch decomposition. In addition, PtrABF4 could directly regulate PtrABR1 expression by binding to its promoter, leading to a regulatory cascade to reinforce the activation of PtrBAM3. Moreover, PtrABF4 physically interacted with PtrABR1 to form a protein complex that further promoted the transcriptional regulation of PtrBAM3. Taken together, our finding reveals that a transcriptional cascade composed of ABF4 and ABR1 works synergistically to upregulate BAM3 expression and starch catabolism in response to drought condition. The results shed light on the understanding of the regulatory molecular mechanisms underlying BAM-mediated soluble sugar accumulation for rendering drought tolerance in plants.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Jian Zhu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Madiha Khan
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Yue Wang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Wei Xiao
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Tian Fang
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Jing Qu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng Xiao
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
| | - Chunlong Li
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
- Hubei Hongshan Laboratory, Wuhan 430070, China
| | - Ji-Hong Liu
- Key Laboratory of Horticultural Plant Biology (MOE), College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China
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Ma M, Lu Y, Di D, Kronzucker HJ, Dong G, Shi W. The nitrification inhibitor 1,9-decanediol from rice roots promotes root growth in Arabidopsis through involvement of ABA and PIN2-mediated auxin signaling. JOURNAL OF PLANT PHYSIOLOGY 2023; 280:153891. [PMID: 36495813 DOI: 10.1016/j.jplph.2022.153891] [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: 10/20/2022] [Revised: 12/03/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
1,9-decanediol (1,9-D) is a biological nitrification inhibitor secreted in roots, which effectively inhibits soil nitrifier activity and reduces nitrogen loss from agricultural fields. However, the effects of 1,9-D on plant root growth and the involvement of signaling pathways in the plant response to 1,9-D have not been investigated. Here, we report that 1,9-D, in the 100-400 μM concentration range, promotes primary root length in Arabidopsis seedlings at 3d and 5d, by 10.1%-33.3% and 6.9%-32.6%, and, in a range of 50-200 μM, leads to an increase in the number of lateral roots. 150 μM 1,9-D was found optimum for the positive regulation of root growth. qRT-PCR analysis reveals that 1,9-D can significantly increase AtABA3 gene expression and that a mutation in ABA3 results in insensitivity of root growth to 1,9-D. Moreover, through pharmacological experiments, we show that exogenous addition of ABA (abscisic acid) with 1,9-D enhances primary root length by 23.5%-63.3%, and an exogenous supply of 1,9-D with the ABA inhibitor Flu reduces primary root length by 1.0%-14.3%. Primary root length of the pin2/eir1-1 is shown to be insensitive to both exogenous addition of 1,9-D and ABA, indicating that the auxin carrier PIN2/EIR1 is involved in promotion of root growth by 1,9-D. These results suggest a novel for 1,9-D in regulating plant root growth through ABA and auxin signaling.
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Affiliation(s)
- Mingkun Ma
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yufang Lu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China.
| | - Dongwei Di
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China
| | - Herbert J Kronzucker
- School of BioSciences, The University of Melbourne, Parkville, VIC, 3010, Australia
| | | | - Weiming Shi
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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Pan X, Wang C, Liu Z, Gao R, Feng L, Li A, Yao K, Liao W. Identification of ABF/AREB gene family in tomato ( Solanum lycopersicum L.) and functional analysis of ABF/AREB in response to ABA and abiotic stresses. PeerJ 2023; 11:e15310. [PMID: 37163152 PMCID: PMC10164373 DOI: 10.7717/peerj.15310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/06/2023] [Indexed: 05/11/2023] Open
Abstract
Abscisic acid (ABA) is a plant hormone that plays an important regulatory role in plant growth and stress response. The AREB (ABA-responsive element binding protein)/ABF (ABRE-binding factor) are important ABA-signaling components that participate in abiotic stress response. However, genome-scale analysis of ABF/AREB has not been systemically investigated in tomato. This study was conducted to identify tomato ABF/AREB family members and analyze their response to ABA and abiotic stresses. The results show that a total of 10 ABF/AREB members were identified in tomato, which are randomly distributed on five chromosomes. Domain analysis showed that these members exhibit high protein similarity, especially in the basic leucine zipper (bZIP) domain region. Subcellular localization analysis indicated that all 10 ABF/AREB members are localized in the nucleus. Phylogenetic tree analysis showed that tomato ABF/AREB genes are divided into two groups, and they are similar with the orthologs of other plants. The analysis of cis-acting elements showed that most tomato ABF/AREB genes contain a variety of hormones and stress-related elements. Expression profiles of different tissues indicated that SlABF2 and SlABF10 play an important role in fruit ripening. Finally, qRT-PCR analysis revealed that 10 tomato ABF/AREB genes respond to ABA, with SlABF3 being the most sensitive. SlABF3, SlABF5 and SlABF10 positively respond to salt and cold stresses. SlABF1, SlABF3 and SlABF10 are significantly induced under UV radiation treatment. SlABF3 and SlABF5 are significantly induced in osmotic stress. Overall, this study may provide insight into the role of tomato ABF/AREB homologues in plant response to abiotic stresses, which laid a foundation for future functional study of ABF/AREB in tomato.
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Comprehensive Analysis of Glutamate Receptor-like Genes in Rice ( Oryza sativa L.): Genome-Wide Identification, Characteristics, Evolution, Chromatin Accessibility, gcHap Diversity, Population Variation and Expression Analysis. Curr Issues Mol Biol 2022; 44:6404-6427. [PMID: 36547098 PMCID: PMC9777005 DOI: 10.3390/cimb44120437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Glutamate receptors (GLR) are widely present in animals and plants, playing essential roles in regulating plant growth, development and stress response. At present, most studies of GLRs in plants are focused on Arabidopsis thaliana, while there have been few studies on rice. In this study, we identified 26 OsGLR genes in rice (Oryza sativa L.). Then, we analyzed the chromosomal location, physical and chemical properties, subcellular location, transmembrane (TM) helices, signal peptides, three-dimensional (3D) structure, cis-acting elements, evolution, chromatin accessibility, population variation, gene-coding sequence haplotype (gcHap) and gene expression under multiple abiotic stress and hormone treatments. The results showed that out of the 26 OsGLR genes, ten genes had the TM domain, signal peptides and similar 3D structures. Most OsGLRs exhibited high tissue specificity in expression under drought stress. In addition, several OsGLR genes were specifically responsive to certain hormones. The favorable gcHap of many OsGLR genes in modern varieties showed obvious differentiation between Xian/indica and Geng/japonica subspecies. This study, for the first time, comprehensively analyzes the OsGLR genes in rice, and provides an important reference for further research on their molecular function.
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Nitrate availability controls translocation of the transcription factor NAC075 for cell-type-specific reprogramming of root growth. Dev Cell 2022; 57:2638-2651.e6. [PMID: 36473460 DOI: 10.1016/j.devcel.2022.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 08/22/2022] [Accepted: 11/07/2022] [Indexed: 12/12/2022]
Abstract
Plant root architecture flexibly adapts to changing nitrate (NO3-) availability in the soil; however, the underlying molecular mechanism of this adaptive development remains under-studied. To explore the regulation of NO3--mediated root growth, we screened for low-nitrate-resistant mutant (lonr) and identified mutants that were defective in the NAC transcription factor NAC075 (lonr1) as being less sensitive to low NO3- in terms of primary root growth. We show that NAC075 is a mobile transcription factor relocating from the root stele tissues to the endodermis based on NO3- availability. Under low-NO3- availability, the kinase CBL-interacting protein kinase 1 (CIPK1) is activated, and it phosphorylates NAC075, restricting its movement from the stele, which leads to the transcriptional regulation of downstream target WRKY53, consequently leading to adapted root architecture. Our work thus identifies an adaptive mechanism involving translocation of transcription factor based on nutrient availability and leading to cell-specific reprogramming of plant root growth.
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Wu R, Xu B, Shi F. Leaf transcriptome analysis of Medicago ruthenica revealed its response and adaptive strategy to drought and drought recovery. BMC PLANT BIOLOGY 2022; 22:562. [PMID: 36460952 PMCID: PMC9716755 DOI: 10.1186/s12870-022-03918-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 10/28/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Drought is one of the main causes of losses in forage crop yield and animal production. Medicago ruthenica (L.) cv. Zhilixing is a high-yielding alfalfa cultivar also known for its high tolerance to drought. We analyzed the transcriptome profile of this cultivar throughout drought stress and recovery and we were able to describe its phased response through the expression profiles of overlapping gene networks and drought-specific genes. RESULTS The ABA and auxin signal transduction pathways are overlapping pathways in response to drought and drought recovery in forage crops. Medicago ruthenica (L.) cv. Zhilixing adopts different strategies at different degrees of drought stress. On the 9th day of drought, transcriptional regulations related to osmoregulation are enhanced mainly through increased activities of carbohydrate and amino acid metabolism, while photosynthetic activities were reduced to slow down growth. With drought prolonging, on the 12th day of drought, the synthesis of proline and other stored organic substances was suppressed in general. After recovery, Medicago ruthenica synthesizes flavonoids through the flavonoid biosynthesis pathway to remove accumulated ROS and repair the oxidative damage from water stress. In addition, the regulation of circadian rhythm seems to accelerate the drought recovery process. CONCLUSIONS Medicago ruthenica adapts to drought by regulating the osmoregulatory system and photosynthesis, which appears to involve the ABA and auxin signaling pathways as key regulators. Furthermore, the synthesis of flavonoids and the regulation of the circadian rhythm can accelerate the recovery process. These results enriched our knowledge of molecular responses to drought and drought recovery in Medicago ruthenica and provide useful information for the development of new legume forage grass varieties with improved adaptability to drought stress.
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Affiliation(s)
- Rina Wu
- Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Bo Xu
- Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China
| | - Fengling Shi
- Key Laboratory of Grassland Resources of the Ministry of Education, College of Grassland Resources and Environment, Inner Mongolia Agricultural University, Hohhot, China.
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St. Aubin B, Wai CM, Kenchanmane Raju SK, Niederhuth CE, VanBuren R. Regulatory dynamics distinguishing desiccation tolerance strategies within resurrection grasses. PLANT DIRECT 2022; 6:e457. [PMID: 36523607 PMCID: PMC9748243 DOI: 10.1002/pld3.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/17/2022] [Indexed: 06/17/2023]
Abstract
Desiccation tolerance has evolved recurrently in grasses using two unique strategies of either protecting or dismantling the photosynthetic apparatus to minimize photooxidative damage under life without water (anhydrobiosis). Here, we surveyed chromatin architecture and gene expression during desiccation in two closely related grasses with distinguishing desiccation tolerance strategies to identify regulatory dynamics underlying these unique adaptations. In both grasses, we observed a strong association between nearby chromatin accessibility and gene expression in desiccated tissues compared to well-watered, reflecting an unusual chromatin stability under anhydrobiosis. Integration of chromatin accessibility (ATACseq) and expression data (RNAseq) revealed a core desiccation response across these two grasses. This includes many genes with binding sites for the core seed development transcription factor ABI5, supporting the long-standing hypothesis that vegetative desiccation tolerance evolved from rewiring seed pathways. Oropetium thomaeum has a unique set of desiccation induced genes and regulatory elements associated with photoprotection, pigment biosynthesis, and response to high light, reflecting its adaptation of protecting the photosynthetic apparatus under desiccation (homoiochlorophyly). By contrast, Eragrostis nindensis has unique accessible and expressed genes related to chlorophyll catabolism, scavenging of amino acids, and hypoxia, highlighting its poikilochlorophyllous adaptations of dismantling the photosynthetic apparatus and degrading chlorophyll under desiccation. Together, our results highlight the complex regulatory and expression dynamics underlying desiccation tolerance in grasses.
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Affiliation(s)
- Brian St. Aubin
- Department of HorticultureMichigan State UniversityEast LansingMIUSA
- Plant Resilience InstituteMichigan State UniversityEast LansingMIUSA
| | - Ching Man Wai
- Department of HorticultureMichigan State UniversityEast LansingMIUSA
- Plant Resilience InstituteMichigan State UniversityEast LansingMIUSA
| | | | | | - Robert VanBuren
- Department of HorticultureMichigan State UniversityEast LansingMIUSA
- Plant Resilience InstituteMichigan State UniversityEast LansingMIUSA
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Rehal PK, Tuan PA, Nguyen TN, Cattani DJ, Humphreys DG, Ayele BT. Genetic variation of seed dormancy in wheat (Triticum aestivum L.) is mediated by transcriptional regulation of abscisic acid metabolism and signaling. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 324:111432. [PMID: 36029895 DOI: 10.1016/j.plantsci.2022.111432] [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: 07/18/2022] [Revised: 08/09/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Abscisic acid (ABA) regulates seed dormancy and therefore preharvest sprouting (PHS) in wheat. This study investigated the contribution of transcriptional regulation of ABA metabolism and signaling genes to genetic variation in dormancy of wheat seeds. Our results showed that genetic variation in seed dormancy is highly correlated with ABA content (r > 0.86), which, in turn, was closely associated with the expression levels of ABA biosynthesis genes, TaNCED1 (r = 0.78) and TaNCED2 (r = 0.67). A relatively lower correlation was observed between ABA content and the expression levels of ABA catabolism genes, TaCYP707A1 (r = 0.51) and TaCYP707A2 (r = 0.57). The expression level of TaABI5 exhibited strong associations with the levels of ABA (r = 0.8) and seed dormancy (r > 0.9), indicating the importance of seed ABA sensitivity in mediating genetic variation in dormancy. Furthermore, high positive correlations were prevalent between the expression patterns of TaABI5 and TaNCED1 (r = 0.91) or TaNCED2 (r = 0.82). Overall, our results implicated the significance of TaNCEDs and TaABI5 in regulating genetic variation in ABA level and sensitivity and thereby seed dormancy, highlighting the potential use of these genes to develop molecular markers for incorporating PHS resistance in wheat.
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Affiliation(s)
- Pawanpuneet K Rehal
- Department of Plant Science, University of Manitoba, 222 Agriculture Building, Winnipeg, Manitoba R3T 2N2, Canada
| | - Pham Anh Tuan
- Department of Plant Science, University of Manitoba, 222 Agriculture Building, Winnipeg, Manitoba R3T 2N2, Canada
| | - Tran-Nguyen Nguyen
- Department of Plant Science, University of Manitoba, 222 Agriculture Building, Winnipeg, Manitoba R3T 2N2, Canada
| | - Douglas J Cattani
- Department of Plant Science, University of Manitoba, 222 Agriculture Building, Winnipeg, Manitoba R3T 2N2, Canada
| | - D Gavin Humphreys
- Ottawa Research and Development Center, Agriculture and Agri-Food Canada, KW Neatby Building, 960 Carling Avenue, Ottawa, Ontario K1A 0C6, Canada
| | - Belay T Ayele
- Department of Plant Science, University of Manitoba, 222 Agriculture Building, Winnipeg, Manitoba R3T 2N2, Canada.
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Wang B, Li L, Liu M, Peng D, Wei A, Hou B, Lei Y, Li X. TaFDL2-1A confers drought stress tolerance by promoting ABA biosynthesis, ABA responses, and ROS scavenging in transgenic wheat. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 112:722-737. [PMID: 36097863 DOI: 10.1111/tpj.15975] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
Plants have developed various protective mechanisms to survive drought stress. Previously, it was shown that a wheat bZIP transcription factor gene TaFD-Like2-1A (TaFDL2-1A) can confer drought tolerance in Arabidopsis. However, the biological functions related to drought stress tolerance of TaFDL2-1A in wheat (Triticum aestivum L.) remain unclear. In the present study, overexpression of TaFDL2-1A in the wheat cultivar Fielder improved drought resistance and conferred abscisic acid (ABA) hypersensitivity. Further analysis showed that overexpression of TaFDL2-1A increased the hypersensitivity of stomata to drought stress and endogenous ABA content under drought conditions. Genetic analysis and transcriptional regulation analysis indicated that TaFDL2-1A binds directly to the promoter fragments of TaRAB21s and TaNCED2s via ACGT core cis-elements, thereby activating their expression, leading to enhanced ABA responses and endogenous ABA accumulation. In addition, our results demonstrate that overexpression of TaFDL2-1A results in higher SOD and GPX activities in wheat under drought conditions by promoting the expression of TaSOD1 and TaGPx1-D, indicating enhanced reactive oxygen species (ROS) scavenging. These results imply that TaFDL2-1A positively regulates ABA biosynthesis, ABA responses, and ROS scavenging to improve drought stress tolerance in transgenic wheat. Our findings improve our understanding of the mechanisms that allow the wheat bZIP transcription factor to improve drought resistance and provide a useful reference gene for breeding programs to enhance drought resistance.
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Affiliation(s)
- Bingxin Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Liqun Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mingliu Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - De Peng
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Aosong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Beiyuan Hou
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yanhong Lei
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xuejun Li
- State Key Laboratory of Crop Stress Biology in Arid Areas and College of Agronomy, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Genome-Wide Identification, Expression and Interaction Analysis of GmSnRK2 and Type A PP2C Genes in Response to Abscisic Acid Treatment and Drought Stress in Soybean Plant. Int J Mol Sci 2022; 23:ijms232113166. [PMID: 36361951 PMCID: PMC9653956 DOI: 10.3390/ijms232113166] [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: 10/13/2022] [Accepted: 10/26/2022] [Indexed: 11/17/2022] Open
Abstract
As a typical ancient tetraploid, soybean (Glycine max) is an important oil crop species and plays a crucial role in supplying edible oil, plant protein and animal fodder worldwide. As global warming intensifies, the yield of soybean in the field is often strongly restricted by drought stress. SNF1-related protein kinase 2 (SnRK2) and type A protein phosphatase 2C (PP2C-A) family members are core components of the abscisic acid (ABA) signal transduction pathway in plants and have been suggested to play important roles in increasing plant tolerance to drought stress, but genetic information supporting this idea is still lacking in soybean. Here, we cloned the GmSnRK2s and GmPP2C-A family genes from the reference genome of Williams 82 soybean. The results showed that the expression patterns of GmSnRK2s and GmPP2C-As are spatiotemporally distinct. The expression of GmSnRK2s in response to ABA and drought signals is not strictly the same as that of Arabidopsis SnRK2 homologous genes. Moreover, our results indicated that the duplicate pairs of GmSnRK2s and GmPP2C-As have similar expression patterns, cis-elements and relationships. GmSnRK2.2 may have a distinct function in the drought-mediated ABA signaling pathway. Furthermore, the results of yeast two-hybrid (Y2H) assays between GmSnRK2s and GmPP2C-As revealed that GmSnRK2.17, GmSnRK2.18, GmSnRK2.22, GmPP2C5, GmPP2C7, GmPP2C10 and GmPP2C17 may play central roles in the crosstalk among ABA signals in response to drought stress. Furthermore, GmPP2C-As and GmSnRKs were targeted by miRNA and validated by degradome sequencing, which may play multiple roles in the crosstalk between ABA and drought signals and other stress signals. Taken together, these results indicate that GmSnRK2s and GmPP2C-As may play a variety of roles in the drought-mediated ABA signaling pathway.
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Weng W, Lu X, Zhou M, Gao A, Yao X, Tang Y, Wu W, Ma C, Bai Q, Xiong R, Ruan J. FtbZIP12 Positively Regulates Responses to Osmotic Stress in Tartary Buckwheat. Int J Mol Sci 2022; 23:ijms232113072. [PMID: 36361858 PMCID: PMC9658761 DOI: 10.3390/ijms232113072] [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: 10/06/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 11/16/2022] Open
Abstract
ABFs play a key role in regulating plant osmotic stress. However, in Tartary buckwheat, data on the role of ABF genes in osmotic stress remain limited and its associated mechanism in osmoregulation remain nebulous. Herein, a novel ABF family in Tartary buckwheat, FtbZIP12, was cloned and characterized. FtbZIP12 is a transcriptional activator located in the nucleus; its expression is induced by NaCl, mannitol, and abscisic acid (ABA). Atopic expression of FtbZIP12 in Arabidopsis promoted seed germination, reduced damage to primary roots, and improved the tolerance of seedlings to osmotic stress. The quantitative realtime polymerase chain reaction (RT-qPCR) results showed that the expressions of the typical genes related to stress, the SOS pathway, and the proline synthesis pathway in Arabidopsis were significantly (p < 0.05) upregulated under osmotic stress. FtbZIP12 improved the osmotic pressure resistance by reducing the damage caused by reactive oxygen species to plants and maintained plant homeostasis by upregulating the expression of genes related to stress, osmotic regulation, and ion homeostasis. This study identified a key candidate gene for understanding the mechanism underlying osmotic-stress-regulated function in Tartary buckwheat, thereby providing a theoretical basis for improving its yield and quality.
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Affiliation(s)
- Wenfeng Weng
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Xiang Lu
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Meiliang Zhou
- Institute of Crop Science, Chinese Academy of Agriculture Science, Beijing 100081, China
| | - Anjing Gao
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Xin Yao
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Yong Tang
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Weijiao Wu
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Chao Ma
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Qing Bai
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Ruiqi Xiong
- College of Agronomy, Guizhou University, Guiyang 550025, China
| | - Jingjun Ruan
- College of Agronomy, Guizhou University, Guiyang 550025, China
- Correspondence:
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40
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Nguyen NH, Vu NT, Cheong JJ. Transcriptional Stress Memory and Transgenerational Inheritance of Drought Tolerance in Plants. Int J Mol Sci 2022; 23:12918. [PMID: 36361708 PMCID: PMC9654142 DOI: 10.3390/ijms232112918] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/19/2022] [Accepted: 10/25/2022] [Indexed: 12/03/2023] Open
Abstract
Plants respond to drought stress by producing abscisic acid, a chemical messenger that regulates gene expression and thereby expedites various physiological and cellular processes including the stomatal operation to mitigate stress and promote tolerance. To trigger or suppress gene transcription under drought stress conditions, the surrounding chromatin architecture must be converted between a repressive and active state by epigenetic remodeling, which is achieved by the dynamic interplay among DNA methylation, histone modifications, loop formation, and non-coding RNA generation. Plants can memorize chromatin status under drought conditions to enable them to deal with recurrent stress. Furthermore, drought tolerance acquired during plant growth can be transmitted to the next generation. The epigenetically modified chromatin architectures of memory genes under stressful conditions can be transmitted to newly developed cells by mitotic cell division, and to germline cells of offspring by overcoming the restraints on meiosis. In mammalian cells, the acquired memory state is completely erased and reset during meiosis. The mechanism by which plant cells overcome this resetting during meiosis to transmit memory is unclear. In this article, we review recent findings on the mechanism underlying transcriptional stress memory and the transgenerational inheritance of drought tolerance in plants.
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Affiliation(s)
- Nguyen Hoai Nguyen
- Faculty of Biotechnology, Ho Chi Minh City Open University, Ho Chi Minh City 700000, Vietnam
| | - Nam Tuan Vu
- Center for Food and Bioconvergence, Seoul National University, Seoul 08826, Korea
| | - Jong-Joo Cheong
- Center for Food and Bioconvergence, Seoul National University, Seoul 08826, Korea
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41
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Zhang Z, Zhang Y, Yuan L, Zhou F, Gao Y, Kang Z, Li T, Hu X. Exogenous 5-aminolevulinic acid alleviates low-temperature injury by regulating glutathione metabolism and β-alanine metabolism in tomato seedling roots. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 245:114112. [PMID: 36155340 DOI: 10.1016/j.ecoenv.2022.114112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/12/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Food availability represents a major worldwide concern due to climate change and population growth. Low-temperature stress (LTS) severely restricts the growth of tomato seedlings. Exogenous 5-aminolevulinic acid (ALA) can alleviate the harm of abiotic stress including LTS; however, data on its protective mechanism on tomato seedling roots, the effects of organelle structure, and the regulation of metabolic pathways under LTS are lacking. In this study, we hope to fill the above gaps by exploring the effects of exogenous ALA on morphology, mitochondrial ultrastructure, reactive oxygen species (ROS) enrichment, physiological indicators, related gene expression, and metabolic pathway in tomato seedlings root under LTS. Results showed that ALA pretreatment could increase the activity of antioxidant enzymes and the content of antioxidant substances in tomato seedlings roots under LTS to scavenge the massively accumulated ROS, thereby protecting the mitochondrial structure of roots and promoting root development under LTS. Combined transcriptomic and metabolomic analysis showed that exogenous ALA pretreatment activated the glutathione metabolism and β-alanine metabolism of tomato seedling roots under LTS, further enhanced the scavenging ability of tomato seedling roots to ROS, and improved the low-temperature tolerance of tomato seedlings. The findings provide a new insight into the regulation of the low-temperature tolerance of tomato by exogenous ALA.
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Affiliation(s)
- Zhengda Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of Agriculture, Yangling, Shaanxi 712100, China; Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Yuhui Zhang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of Agriculture, Yangling, Shaanxi 712100, China; Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Luqiao Yuan
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of Agriculture, Yangling, Shaanxi 712100, China; Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Fan Zhou
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yi Gao
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhen Kang
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of Agriculture, Yangling, Shaanxi 712100, China; Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China
| | - Tianlai Li
- College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xiaohui Hu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Protected Horticultural Engineering in Northwest, Ministry of Agriculture, Yangling, Shaanxi 712100, China; Shaanxi Protected Agriculture Research Centre, Yangling, Shaanxi 712100, China.
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Siemiatkowska B, Chiara M, Badiger BG, Riboni M, D'Avila F, Braga D, Salem MAA, Martignago D, Colanero S, Galbiati M, Giavalisco P, Tonelli C, Juenger TE, Conti L. GIGANTEA Is a Negative Regulator of Abscisic Acid Transcriptional Responses and Sensitivity in Arabidopsis. PLANT & CELL PHYSIOLOGY 2022; 63:1285-1297. [PMID: 35859344 DOI: 10.1093/pcp/pcac102] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 07/11/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Transcriptional reprogramming plays a key role in drought stress responses, preceding the onset of morphological and physiological acclimation. The best-characterized signal regulating gene expression in response to drought is the phytohormone abscisic acid (ABA). ABA-regulated gene expression, biosynthesis and signaling are highly organized in a diurnal cycle, so that ABA-regulated physiological traits occur at the appropriate time of day. The mechanisms that underpin such diel oscillations in ABA signals are poorly characterized. Here we uncover GIGANTEA (GI) as a key gatekeeper of ABA-regulated transcriptional and physiological responses. Time-resolved gene expression profiling by RNA sequencing under different irrigation scenarios indicates that gi mutants produce an exaggerated ABA response, despite accumulating wild-type levels of ABA. Comparisons with ABA-deficient mutants confirm the role of GI in controlling ABA-regulated genes, and the analysis of leaf temperature, a read-out for transpiration, supports a role for GI in the control of ABA-regulated physiological processes. Promoter regions of GI/ABA-regulated transcripts are directly targeted by different classes of transcription factors (TFs), especially PHYTOCHROME-INTERACTING FACTOR and -BINDING FACTOR, together with GI itself. We propose a model whereby diel changes in GI control oscillations in ABA responses. Peak GI accumulation at midday contributes to establishing a phase of reduced ABA sensitivity and related physiological responses, by gating DNA binding or function of different classes of TFs that cooperate or compete with GI at target regions.
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Affiliation(s)
- Beata Siemiatkowska
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Matteo Chiara
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Bhaskara G Badiger
- Department of Integrative Biology, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
| | - Matteo Riboni
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Francesca D'Avila
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Via Antonio di Rudinì, 8, Milano 20142, Italy
| | - Daniele Braga
- Dipartimento di Scienze della Salute, Università degli Studi di Milano, Via Antonio di Rudinì, 8, Milano 20142, Italy
| | - Mohamed Abd Allah Salem
- Department of Pharmacognosy, Faculty of Pharmacy, Menoufia University, Gamal Abd El Nasr st., Shibin Elkom, Menoufia 32511, Egypt
| | - Damiano Martignago
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Sara Colanero
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Massimo Galbiati
- Istituto di Biologia e Biotecnologia Agraria-IBBA, CNR, Via Edoardo Bassini, 15, Milano 20133, Italy
| | - Patrick Giavalisco
- Max Planck Institute for Biology of Ageing, Joseph Stelzmann Str. 9b, Cologne 50931, Germany
| | - Chiara Tonelli
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
| | - Thomas E Juenger
- Department of Integrative Biology, The University of Texas at Austin, 2415 Speedway, Austin, TX 78712, USA
| | - Lucio Conti
- Dipartimento di Bioscienze, Università degli Studi di Milano, Via Celoria, 26, Milano 20133, Italy
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43
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Li Z, He F, Tong Z, Li X, Yang Q, Hannaway DB. Metabolomic changes in crown of alfalfa (Medicago sativa L.) during de-acclimation. Sci Rep 2022; 12:14977. [PMID: 36056096 DOI: 10.21203/rs.3.rs-1515778/v1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 08/29/2022] [Indexed: 05/28/2023] Open
Abstract
Alfalfa is a high-quality forage legume species that is widely cultivated at high latitudes worldwide. However, a decrease in cold tolerance in early spring seriously affects regrowth and persistence of alfalfa. There has been limited research on the metabolomic changes that occur during de-acclimation. In this study, a liquid chromatography-mass spectrometry system was used to compare the metabolites in two alfalfa cultivars during a simulated overwintering treatment. In four pairwise comparisons, 367 differential metabolites were identified, of which 31 were annotated according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) database. Many of these metabolites were peptides, carbohydrates, and lipids. At the subclass level, 17 major pathways were revealed to be significantly enriched (P < 0.05). The main differential metabolites included amino acids, peptides and analogs, carbohydrates, and glycerol phosphocholines. A metabolomic analysis showed that the up-regulation of unsaturated fatty acids and amino acids as well as the enhancement of the related metabolic pathways might be an effective strategy for increasing alfalfa cold tolerance. Furthermore, glycerophospholipid metabolism affects alfalfa cold tolerance in early spring. Study results provide new insights about the changes in alfalfa metabolites that occur during de-acclimation, with potential implications for the selection and breeding of cold-tolerant cultivars.
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Affiliation(s)
- Zhensong Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Feng He
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China.
| | - Zongyong Tong
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Xianglin Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Qingchuan Yang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - David B Hannaway
- Department of Crop & Soil Science, Oregon State University, Corvallis, USA
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44
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Li Z, He F, Tong Z, Li X, Yang Q, Hannaway DB. Metabolomic changes in crown of alfalfa (Medicago sativa L.) during de-acclimation. Sci Rep 2022; 12:14977. [PMID: 36056096 PMCID: PMC9440230 DOI: 10.1038/s41598-022-19388-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Alfalfa is a high-quality forage legume species that is widely cultivated at high latitudes worldwide. However, a decrease in cold tolerance in early spring seriously affects regrowth and persistence of alfalfa. There has been limited research on the metabolomic changes that occur during de-acclimation. In this study, a liquid chromatography-mass spectrometry system was used to compare the metabolites in two alfalfa cultivars during a simulated overwintering treatment. In four pairwise comparisons, 367 differential metabolites were identified, of which 31 were annotated according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) database. Many of these metabolites were peptides, carbohydrates, and lipids. At the subclass level, 17 major pathways were revealed to be significantly enriched (P < 0.05). The main differential metabolites included amino acids, peptides and analogs, carbohydrates, and glycerol phosphocholines. A metabolomic analysis showed that the up-regulation of unsaturated fatty acids and amino acids as well as the enhancement of the related metabolic pathways might be an effective strategy for increasing alfalfa cold tolerance. Furthermore, glycerophospholipid metabolism affects alfalfa cold tolerance in early spring. Study results provide new insights about the changes in alfalfa metabolites that occur during de-acclimation, with potential implications for the selection and breeding of cold-tolerant cultivars.
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Affiliation(s)
- Zhensong Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Feng He
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China.
| | - Zongyong Tong
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Xianglin Li
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - Qingchuan Yang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, No.2, Yuanmingyuan West Road, Haidian District, Beijing, 100193, China
| | - David B Hannaway
- Department of Crop & Soil Science, Oregon State University, Corvallis, USA
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Zhao J, Sun Y, Li X, Li Y. CYSTEINE-RICH RECEPTOR-LIKE KINASE5 (CRK5) and CRK22 regulate the response to Verticillium dahliae toxins. PLANT PHYSIOLOGY 2022; 190:714-731. [PMID: 35674361 PMCID: PMC9434262 DOI: 10.1093/plphys/kiac277] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/12/2022] [Indexed: 05/13/2023]
Abstract
Cysteine-rich receptor-like kinases (CRKs) play critical roles in responses to biotic and abiotic stresses. However, the molecular mechanisms of CRKs in plant defense responses remain unknown. Here, we demonstrated that two CRKs, CRK5 and CRK22, are involved in regulating defense responses to Verticillium dahliae toxins (Vd-toxins) in Arabidopsis (Arabidopsis thaliana). Biochemical and genetic analyses showed that CRK5 and CRK22 may act upstream of MITOGEN-ACTIVATED PROTEIN KINASE3 (MPK3) and MPK6 to regulate the salicylic acid (SA)-signaling pathway in response to Vd-toxins. In addition, MPK3 and MPK6 interact with the transcription factor WRKY70 to modulate defense responses to Vd-toxins. WRKY70 directly binds the promoter domains of the SA-signaling-related transcription factor genes TGACG SEQUENCE-SPECIFIC BINDING PROTEIN (TGA2) and TGA6 to regulate their expression in response to Vd-toxins. Thus, our study reveals a mechanism by which CRK5 and CRK22 regulate SA signaling through the MPK3/6-WRKY70-TGA2/6 pathway in response to Vd-toxins.
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Affiliation(s)
- Jun Zhao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Yuhui Sun
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
| | - Xinyue Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, China
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Ndathe R, Dale R, Kato N. Dynamic modeling of ABA-dependent expression of the Arabidopsis RD29A gene. FRONTIERS IN PLANT SCIENCE 2022; 13:928718. [PMID: 36092424 PMCID: PMC9458874 DOI: 10.3389/fpls.2022.928718] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 08/02/2022] [Indexed: 06/01/2023]
Abstract
The abscisic acid (ABA) signaling pathway is the key defense mechanism against drought stress in plants. In the pathway, signal transduction among four core proteins, pyrabactin resistance (PYR), protein phosphatase 2C (PP2C), sucrose-non-fermenting-1-related protein kinase 2 (SnRK2), and ABRE binding factor (ABF) leads to altered gene expression kinetics that is driven by an ABA-responsive element (ABRE). A most recent and comprehensive study provided data suggesting that ABA alters the expression kinetics in over 6,500 genes through the ABF-ABRE associations in Arabidopsis. Of these genes, termed ABA gene regulatory network (GRN), over 50% contain a single ABRE within 4 kb of the gene body, despite previous findings suggesting that a single copy of ABRE is not sufficient to drive the gene expression. To understand the expression system of the ABA GRN by the single ABRE, a dynamic model of the gene expression for the desiccation 29A (RD29A) gene was constructed with ordinary differential equations. Parameter values of molecular-molecular interactions and enzymatic reactions in the model were implemented from the data obtained by previously conducted in vitro experiments. On the other hand, parameter values of gene expression and translation were determined by comparing the kinetics of gene expression in the model to the expression kinetics of RD29A in real plants. The optimized model recapitulated the trend of gene expression kinetics of RD29A in ABA dose-response that were previously investigated. Further analysis of the model suggested that a single ABRE controls the time scale and dynamic range of the ABA-dependent gene expression through the PP2C feedback regulation even though an additional cis-element is required to drive the expression. The model construed in this study underpins the importance of a single ABRE in the ABA GRN.
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Affiliation(s)
- Ruth Ndathe
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States
| | - Renee Dale
- Donald Danforth Plant Science Center, St. Louis, MO, United States
| | - Naohiro Kato
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, United States
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Zheng L, Yang P, Niu Z, Tian M, Wang J, Sun C, Zhang S, Peng Z, Zhu J, Yang Z. Dissecting in vivo responses of phytohormones to Alternaria solani infection reveals orchestration of JA- and ABA-mediated antifungal defenses in potato. HORTICULTURE RESEARCH 2022; 9:uhac188. [PMID: 37180032 PMCID: PMC10167417 DOI: 10.1093/hr/uhac188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 08/16/2022] [Indexed: 05/15/2023]
Affiliation(s)
- Lijia Zheng
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
| | - Pan Yang
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
| | - Zijian Niu
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
| | - Mengjun Tian
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
| | - Jinhui Wang
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
| | - Chaofei Sun
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
| | - Shuo Zhang
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
| | - Zechi Peng
- Hebei Agricultural University, College of Plant Protection, Baoding, Hebei, China, 071000
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Li Z, Luo X, Wang L, Shu K. ABSCISIC ACID INSENSITIVE 5 mediates light-ABA/gibberellin crosstalk networks during seed germination. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:4674-4682. [PMID: 35522989 DOI: 10.1093/jxb/erac200] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Accepted: 05/05/2022] [Indexed: 06/14/2023]
Abstract
Appropriate timing of seed germination is crucial for plant survival and has important implications for agricultural production. Timely germination relies on harmonious interactions between endogenous developmental signals, especially abscisic acid (ABA) and gibberellins (GAs), and environmental cues such as light. Recently, a series of investigations of a three-way crosstalk between phytochromes, ABA, and GAs in the regulation of seed germination demonstrated that the transcription factor ABSCISIC ACID INSENSITIVE 5 (ABI5) is a central mediator in the light-ABA/GA cascades. Here, we review current knowledge of ABI5 as a key player in light-, ABA-, and GA-signaling pathways that precisely control seed germination. We highlight recent advances in ABI5-related studies, focusing on the regulation of seed germination, which is strictly controlled at both the transcriptional and the protein levels by numerous light-regulated factors. We further discuss the components of ABA and GA signaling pathways that could regulate ABI5 during seed germination, including transcription factors, E3 ligases, protein kinases, and phosphatases. The precise molecular mechanisms by which ABI5 mediates ABA-GA antagonistic crosstalk during seed germination are also discussed. Finally, some potential research hotspots underlying ABI5-mediated seed germination regulatory networks are proposed.
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Affiliation(s)
- Zenglin Li
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, 710012, China
- Institute of Biology II, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Xiaofeng Luo
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, 710012, China
| | - Lei Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, 710012, China
| | - Kai Shu
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, 710012, China
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Zhang L, Wang L, Chen X, Zhao L, Liu X, Wang Y, Wu G, Xia C, Zhang L, Kong X. The protein phosphatase 2C clade A TaPP2CA interact with calcium-dependent protein kinases, TaCDPK5/TaCDPK9-1, that phosphorylate TabZIP60 transcription factor from wheat (Triticum aestivum L.). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111304. [PMID: 35696905 DOI: 10.1016/j.plantsci.2022.111304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 04/20/2022] [Accepted: 04/24/2022] [Indexed: 05/20/2023]
Abstract
Previously we have found that TabZIP60 from the ABF/AREB (ABRE-binding factor/ABA-responsive element-binding protein) subfamily of bZIP transcription factor (TF) was involved in salt stress response. However, the regulatory mechanism of TabZIP60 is unknown. In the present study, we identified two calcium-dependent protein kinase (CDPK) genes, TaCDPK5/TaCDPK9-1, which were clustered into group Ⅰ and were induced by salt, abscisic acid (ABA), and polyethylene glycol (PEG) treatments. RT-qPCR results showed that the expression level of salt-induced TabZIP60 was drastically inhibited by Ca2+ channel blocker LaCl3. TaCDPK5/TaCDPK9-1 were involved in interaction with TabZIP60 protein in vivo and in vitro. And TaCDPK5/TaCDPK9-1 could autophosphorylate and phosphorylate TabZIP60 protein in a Ca2+-dependent way. Mutational analysis indicated that Serine-110 of TabZIP60 was essential for TaCDPK5/TaCDPK9-1-TabZIP60 interaction and was the phosphorylation site of TaCDPK5/TaCDPK9-1 kinases. Yeast two-hybrid assay results showed the interactions between TaCDPK5/TaCDPK9-1 and wheat protein phosphatase 2 C clade A TaPP2CA116/ TaPP2CA121 separately. These findings demonstrate that the phosphorylation status of TabZIP60 controlled by TaPP2CA116/ TaPP2CA121 and TaCDPK5/TaCDPK9-1 might play a crucial role in wheat during salt stress.
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Affiliation(s)
- Lina Zhang
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China.
| | - Liting Wang
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Xue Chen
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Lijuan Zhao
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Xingyan Liu
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Yinghong Wang
- Xinxiang Academy of Agricultural Sciences, Xinxiang, Henan 453000, China
| | - Guofan Wu
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu 730070, China
| | - Chuan Xia
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Lichao Zhang
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiuying Kong
- Key Laboratory of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, The National Key Facility for Crop Gene Resources and Genetic Improvement, Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Li Y, Gao Z, Lu J, Wei X, Qi M, Yin Z, Li T. SlSnRK2.3 interacts with SlSUI1 to modulate high temperature tolerance via Abscisic acid (ABA) controlling stomatal movement in tomato. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 321:111305. [PMID: 35696906 DOI: 10.1016/j.plantsci.2022.111305] [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: 02/20/2022] [Revised: 04/02/2022] [Accepted: 04/25/2022] [Indexed: 06/15/2023]
Abstract
Tomato is often exposed to high temperature stress during summer cultivation. Stomatal movement plays important roles in photosynthesis and transpiration which restricts the quality and yield of tomato under environmental stress. To elucidate the mechanism of stomatal movement in high temperature tolerance, SlSnRK2s (sucrose non-fermenting 1-related protein kinases) silenced plants were generated in tomato with CRISPR-Cas 9 gene editing techniques. Through the observation of stomatal parameters, SlSnRK2.3 regulated stomatal closure which was responded to ABA (abscisic acid) and activated signaling pathway of ROS (reactive oxygen species) in high temperature stress. Based on the positive functions of SlSnRK2.3, the cDNA library was generated to investigate interaction proteins of SlSnRK2s. The interaction between SlSnRK2.3 and SlSUI1 (protein translation factor SUI1 homolog) was employed by Yeast two hybrid assay (Y2H), Luciferase (LUC), and Bimolecular fluorescence complementation (BiFC). Finally, the specific interactive sites between SlSnRK2.3 and SlSUI1 were verified by site-directed mutagenesis. The consistent mechanism of SlSnRK2.3 and SlSUI1 in stomatal movement, indicating that SlSUI1 interacted with SlSnRK2.3 through ABA-dependent signaling pathway in high temperature stress. Our results provided evidence for improving the photosynthetic capacity of tomato under high temperature stress, and support the breeding and genetic engineering of tomato over summer facility cultivation.
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Affiliation(s)
- Yangyang Li
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Zhenhua Gao
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Jiazhi Lu
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Xueying Wei
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Mingfang Qi
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China
| | - Zepeng Yin
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Fruit Postharvest Biology of Liaoning Province, No. 120 Dongling Road, Shenhe District, 110866, PR China.
| | - Tianlai Li
- Horticulture Department, Shenyang Agricultural University, No. 120 Dongling Road, Shenhe District, 110866, PR China; National & Local Joint Engineering Research Center of Northern Horticultural Facilities Design & Application Technology (Liaoning), No. 120 Dongling Road, Shenhe District, 110866, PR China; Key Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, No. 120 Dongling Road, Shenhe District, 110866, PR China.
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