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	The arabidopsis ring finger e3 ligase rha2a is a novel positive regulator of abscisic acid signaling during seed germination and early seedling development
	Bu, Qingyun1; Li, Hongmei1,2; Zhao, Qingzhen1,2; Jiang, Hongling1; Zhai, Qingzhe1,2; Zhang, Jie1,2; Wu, Xiaoyan1; Sun, Jiaqiang1; Xie, Qi1; Wang, Daowen3
刊名	Plant physiology
	2009-05-01
卷号	150期号:1页码:463-481
ISSN号	0032-0889
DOI	10.1104/pp.109.135269
通讯作者	Li, chuanyou(cyli@genetics.ac.cn)
英文摘要	The phytohormone abscisic acid (aba) is well known for its regulatory roles in integrating environmental constraints with the developmental programs of plants. here, we characterize the biological function of the arabidopsis (arabidopsis thaliana) ring-h2 protein rha2a in aba signaling. the rha2a mutant is less sensitive to aba than the wild type during seed germination and early seedling development, whereas transgenic plants overexpressing rha2a are hypersensitive, indicating that rha2a positively regulates aba-mediated control of seed germination and early seedling development. double mutant analyses of rha2a with several known aba-insensitive mutants suggest that the action of rha2a in aba signaling is independent of that of the transcription factors abi3, abi4, and abi5. we provide evidence showing that rha2a also positively regulates plant responses to salt and osmotic stresses during seed germination and early seedling development. rha2a is a functional e3 ubiquitin ligase, and its conserved ring domain is likely important for the biological function of rha2a in aba signaling. together, these results suggest that the e3 ligase rha2a is an important regulator of aba signaling during seed germination and early seedling development.
WOS关键词	NAC TRANSCRIPTION FACTORS ; PROTEIN-DEGRADATION ; NEGATIVE REGULATOR ; PLANT DEVELOPMENT ; FUNCTIONAL-ANALYSIS ; GENE-EXPRESSION ; GUARD-CELLS ; THALIANA ; STRESS ; UBIQUITIN
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
语种	英语
出版者	AMER SOC PLANT BIOLOGISTS
WOS记录号	WOS:000265661700038
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2403071
专题	中国科学院大学
通讯作者	Li, Chuanyou
作者单位	1.Chinese Acad Sci, Inst Genet & Dev Biol, Natl Ctr Plant Gene Res, State Key Lab Plant Genom, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Bu, Qingyun,Li, Hongmei,Zhao, Qingzhen,et al. The arabidopsis ring finger e3 ligase rha2a is a novel positive regulator of abscisic acid signaling during seed germination and early seedling development[J]. Plant physiology,2009,150(1):463-481.
APA	Bu, Qingyun.,Li, Hongmei.,Zhao, Qingzhen.,Jiang, Hongling.,Zhai, Qingzhe.,...&Li, Chuanyou.(2009).The arabidopsis ring finger e3 ligase rha2a is a novel positive regulator of abscisic acid signaling during seed germination and early seedling development.Plant physiology,150(1),463-481.
MLA	Bu, Qingyun,et al."The arabidopsis ring finger e3 ligase rha2a is a novel positive regulator of abscisic acid signaling during seed germination and early seedling development".Plant physiology 150.1(2009):463-481.

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