Rice CIRCADIAN CLOCK ASSOCIATED 1 transcriptionally regulates ABA signaling to confer multiple abiotic stress tolerance

doi:10.1093/plphys/kiac196

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	Rice CIRCADIAN CLOCK ASSOCIATED 1 transcriptionally regulates ABA signaling to confer multiple abiotic stress tolerance
	Wei, Hua 2; Xu, Hang 2; Su, Chen 2; Wang, Xiling 2; Wang, Lei 2
刊名	PLANT PHYSIOLOGY
	2022
卷号	190 期号:2 页码:1057-1073
ISSN号	0032-0889
DOI	10.1093/plphys/kiac196
文献子类	Article
英文摘要	A rice core circadian clock component confers broad-spectrum tolerance to abiotic stress by transcriptional orchestration of multiple key genes in abscisic acid signaling. The circadian clock facilitates the survival and reproduction of crop plants under harsh environmental conditions such as drought and osmotic and salinity stresses, mainly by reprogramming the endogenous transcriptional landscape. Nevertheless, the genome-wide roles of core clock components in rice (Oryza sativa L.) abiotic stress tolerance are largely uncharacterized. Here, we report that CIRCADIAN CLOCK ASSOCIATED1 (OsCCA1), a vital clock component in rice, is required for tolerance to salinity, osmotic, and drought stresses. DNA affinity purification sequencing coupled with transcriptome analysis identified 692 direct transcriptional target genes of OsCCA1. Among them, the genes involved in abscisic acid (ABA) signaling, including group A protein phosphatase 2C genes and basic region and leucine zipper 46 (OsbZIP46), were substantially enriched. Moreover, OsCCA1 could directly bind the promoters of OsPP108 and OsbZIP46 to activate their expression. Consistently, oscca1 null mutants generated via genome editing displayed enhanced sensitivities to ABA signaling. Together, our findings illustrate that OsCCA1 confers multiple abiotic stress tolerance likely by orchestrating ABA signaling, which links the circadian clock with ABA signaling in rice.
学科主题	Plant Sciences
电子版国际标准刊号	1532-2548
出版地	CARY
WOS关键词	ABSCISIC-ACID ; DROUGHT TOLERANCE ; POSITIVE REGULATOR ; SEED-GERMINATION ; SALT TOLERANCE ; PROTEIN ; ARABIDOPSIS ; RESISTANCE ; RESPONSES ; OVEREXPRESSION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	OXFORD UNIV PRESS INC
WOS记录号	WOS:000796630500001
资助机构	National Natural Science Foundation of China [31770287] ; National Key Research and Development Program of China [2016YFD0100604] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB27030206]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/28472]
专题	中科院植物分子生理学重点实验室
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, CAS Ctr Excellence Mol Plant Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Wei, Hua,Xu, Hang,Su, Chen,et al. Rice CIRCADIAN CLOCK ASSOCIATED 1 transcriptionally regulates ABA signaling to confer multiple abiotic stress tolerance[J]. PLANT PHYSIOLOGY,2022,190(2):1057-1073.
APA	Wei, Hua,Xu, Hang,Su, Chen,Wang, Xiling,&Wang, Lei.(2022).Rice CIRCADIAN CLOCK ASSOCIATED 1 transcriptionally regulates ABA signaling to confer multiple abiotic stress tolerance.PLANT PHYSIOLOGY,190(2),1057-1073.
MLA	Wei, Hua,et al."Rice CIRCADIAN CLOCK ASSOCIATED 1 transcriptionally regulates ABA signaling to confer multiple abiotic stress tolerance".PLANT PHYSIOLOGY 190.2(2022):1057-1073.