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Circadian Evening Complex Represses Jasmonate-Induced Leaf Senescence in Arabidopsis

文献类型：期刊论文

作者Zhang, Yuanyuan; Wang, Yan1; Wei, Hua1; Li, Na1; Tian, Wenwen1; Chong, Kang3; Wang, Lei1
刊名MOLECULAR PLANT
出版日期2018
卷号11期号:2页码:326-337
关键词circadian clock Evening Complex JA signal leaf senescence MYC2
ISSN号1674-2052
DOI10.1016/j.molp.2017.12.017
文献子类Article
英文摘要Plants initiate leaf senescence to reallocate energy and nutrients from aging to developing tissues for optimizing growth fitness and reproduction at the end of the growing season or under stress. Jasmonate (JA), a lipid-derived phytohormone, is known as an important endogenous signal in inducing leaf senescence. However, whether and how the circadian clock gates JA signaling to induce leaf senescence in plants remains elusive. In this study, we show that Evening Complex (EC), a core component of the circadian oscillator, negatively regulates leaf senescence in Arabidopsis thaliana. Transcriptomic profiling analysis reveals that EC is closely involved in JA signaling and response, consistent with accelerated leaf senescence unanimously displayed by EC mutants upon JA induction. We found that EC directly binds the promoter of MYC2, which encodes a key activator of JA-induced leaf senescence, and represses its expression. Genetic analysis further demonstrated that the accelerated JA-induced leaf senescence in EC mutants is abrogated by myc2 myc3 myc4 triple mutation. Collectively, these results reveal a critical molecular mechanism illustrating how the core component of the circadian clock gates JA signaling to regulate leaf senescence.
学科主题Biochemistry & Molecular Biology ; Plant Sciences
出版地CAMBRIDGE
电子版国际标准刊号1752-9867
WOS关键词INTEGRATIVE GENOMICS VIEWER ; EC NIGHTTIME REPRESSOR ; TRANSCRIPTION FACTOR ; CLOCK ; EXPRESSION ; ACID ; THALIANA ; DEFENSE ; GROWTH ; MYC2
语种英语
WOS记录号WOS:000424400900008
出版者CELL PRESS
资助机构National Natural Sciences Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670290, 31570292] ; Youth Innovation Promotion Association CAS [2017110] ; Youth 1000 plan ; Chinese Academy of SciencesChinese Academy of Sciences [QYZDB-SSW-SMC011, XDTB0400-02]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/20565]  
专题中科院植物分子生理学重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, CAS Ctr Excellence Mol Plant Sci, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
2.Natl Ctr Plant Gene Res, Beijing 100093, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Yuanyuan,Wang, Yan,Wei, Hua,et al. Circadian Evening Complex Represses Jasmonate-Induced Leaf Senescence in Arabidopsis[J]. MOLECULAR PLANT,2018,11(2):326-337.
APA Zhang, Yuanyuan.,Wang, Yan.,Wei, Hua.,Li, Na.,Tian, Wenwen.,...&Wang, Lei.(2018).Circadian Evening Complex Represses Jasmonate-Induced Leaf Senescence in Arabidopsis.MOLECULAR PLANT,11(2),326-337.
MLA Zhang, Yuanyuan,et al."Circadian Evening Complex Represses Jasmonate-Induced Leaf Senescence in Arabidopsis".MOLECULAR PLANT 11.2(2018):326-337.

入库方式： OAI收割

来源：植物研究所

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