Circadian Evening Complex Represses Jasmonate-Induced Leaf Senescence in Arabidopsis

doi:10.1016/j.molp.2017.12.017

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	Circadian Evening Complex Represses Jasmonate-Induced Leaf Senescence in Arabidopsis
	Zhang, Yuanyuan ; Wang, Yan 1; Wei, Hua 1; Li, Na 1; Tian, Wenwen 1; Chong, Kang 2; Wang, Lei 1
刊名	MOLECULAR PLANT
	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
DOI	10.1016/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
电子版国际标准刊号	1752-9867
出版地	CAMBRIDGE
WOS关键词	INTEGRATIVE GENOMICS VIEWER ; EC NIGHTTIME REPRESSOR ; TRANSCRIPTION FACTOR ; CLOCK ; EXPRESSION ; ACID ; THALIANA ; DEFENSE ; GROWTH ; MYC2
语种	英语
出版者	CELL PRESS
WOS记录号	WOS:000424400900008
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]
内容类型	期刊论文
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Natl Ctr Plant Gene Res, Beijing 100093, 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.