IB-CAS  > 中科院植物分子生理学重点实验室
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
Source PublicationMOLECULAR PLANT
ISSN1674-2052
Volume11Issue:2Pages:326-337
AbstractPlants 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.
Keywordcircadian clock Evening Complex JA signal leaf senescence MYC2
Subject AreaBiochemistry & Molecular Biology ; Plant Sciences
DOI10.1016/j.molp.2017.12.017
Indexed BySCI
Language英语
WOS KeywordINTEGRATIVE GENOMICS VIEWER ; EC NIGHTTIME REPRESSOR ; TRANSCRIPTION FACTOR ; CLOCK ; EXPRESSION ; ACID ; THALIANA ; DEFENSE ; GROWTH ; MYC2
WOS IDWOS:000424400900008
PublisherCELL PRESS
SubtypeArticle
Publication PlaceCAMBRIDGE
EISSN1752-9867
Funding OrganizationNational 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]
Corresponding Author Emailwanglei@ibcas.ac.cn
OABronze
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Cited Times:49[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/20565
Collection中科院植物分子生理学重点实验室
Affiliation1.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
Recommended Citation
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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