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Circadian Evening Complex Represses Jasmonate-Induced Leaf Senescence in Arabidopsis
Zhang, Yuanyuan; Wang, Yan1; Wei, Hua1; Li, Na1; Tian, Wenwen1; Chong, Kang2; Wang, Lei1
2018
发表期刊MOLECULAR PLANT
ISSN1674-2052
卷号11期号:2页码:326-337
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.
关键词circadian clock Evening Complex JA signal leaf senescence MYC2
学科领域Biochemistry & Molecular Biology ; Plant Sciences
DOI10.1016/j.molp.2017.12.017
收录类别SCI
语种英语
WOS关键词INTEGRATIVE GENOMICS VIEWER ; EC NIGHTTIME REPRESSOR ; TRANSCRIPTION FACTOR ; CLOCK ; EXPRESSION ; ACID ; THALIANA ; DEFENSE ; GROWTH ; MYC2
WOS记录号WOS:000424400900008
出版者CELL PRESS
文献子类Article
出版地CAMBRIDGE
EISSN1752-9867
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]
作者邮箱wanglei@ibcas.ac.cn
作品OA属性Bronze
引用统计
被引频次:67[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Ctr Plant Gene Res, Beijing 100093, Peoples R China
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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.
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