Heat shock protein 101 (HSP101) promotes flowering under nonstress conditions

doi:10.1093/plphys/kiab052

KIB OpenIR

	Heat shock protein 101 (HSP101) promotes flowering under nonstress conditions
	Qin,Feng; Yu,Buzhu ; Li,Weiqi
	2021
发表期刊	PLANT PHYSIOLOGY
ISSN	0032-0889
卷号	186 期号:1 页码:407-419
摘要	Heat shock proteins (HSPs) are stress-responsive proteins that are conserved across all organisms. Heat shock protein 101 (HSP101) has an important role in thermotolerance owing to its chaperone activity. However, if and how it functions in development under nonstress conditions is not yet known. By using physiological, molecular, and genetic methods, we investigated the role of HSP101 in the control of flowering in Arabidopsis (Arabidopsis thaliana (L.) Heynh.) under nonstress conditions. Knockout and overexpression of HSP101 cause late and early flowering, respectively. Late flowering can be restored by rescue of HSP101. HSP101 regulates the expression of genes involved in the six known flowering pathways; the most negatively regulated genes are FLOWERING LOCUS C (FLC) and SHORT VEGETATIVE PHASE (SVP); downstream integrators of the flowering pathways are positively regulated. The late-flowering phenotype of loss-of-HSP101 mutants is suppressed by both the mutations of FLC and SVP. The responses of flowering time to exogenous signals do not change in HSP101 mutants. HSP101 is also found in nonspecific regions according to subcellular localization. We found that HSP101 promotes flowering under nonstress conditions and that this promotion depends on FLC and SVP. Our data suggest that this promotion could occur through a multiple gene regulation mechanism.
关键词	MOLECULAR CHAPERONES ARABIDOPSIS EXPRESSION TIME HSP90 TRANSCRIPTION TOLERANCE REPRESSOR THERMOTOLERANCE OVEREXPRESSION
DOI	10.1093/plphys/kiab052
WOS记录号	WOS:000696366700037
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73506
专题	中国科学院昆明植物研究所
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Yuxi Normal Univ, Yuxi 653100, Peoples R China
推荐引用方式 GB/T 7714	Qin,Feng,Yu,Buzhu,Li,Weiqi. Heat shock protein 101 (HSP101) promotes flowering under nonstress conditions[J]. PLANT PHYSIOLOGY,2021,186(1):407-419.
APA	Qin,Feng,Yu,Buzhu,&Li,Weiqi.(2021).Heat shock protein 101 (HSP101) promotes flowering under nonstress conditions.PLANT PHYSIOLOGY,186(1),407-419.
MLA	Qin,Feng,et al."Heat shock protein 101 (HSP101) promotes flowering under nonstress conditions".PLANT PHYSIOLOGY 186.1(2021):407-419.