Arabidopsis VQ MOTIF-CONTAINING PROTEIN29 Represses Seedling Deetiolation by Interacting with PHYTOCHROME-INTERACTING FACTOR11[C][W][OPEN]

doi:10.1104/pp.113.234492

IB-CAS > 中科院光生物学重点实验室

	Arabidopsis VQ MOTIF-CONTAINING PROTEIN29 Represses Seedling Deetiolation by Interacting with PHYTOCHROME-INTERACTING FACTOR11[C][W][OPEN]
	Li, Yunliang 1; Jing, Yanjun ; Li, Junjiao 2; Xu, Gang 1; Lin, Rongcheng
	2014
发表期刊	PLANT PHYSIOLOGY
ISSN	0032-0889
卷号	164 期号:4 页码:2068-2080
摘要	Seedling deetiolation, a critical process in early plant development, is regulated by an intricate transcriptional network. Here, we identified VQ MOTIF-CONTAINING PROTEIN29 (VQ29) as a novel regulator of the photomorphogenic response in Arabidopsis (Arabidopsis thaliana). We showed that 29 of the 34 VQ proteins present in Arabidopsis exhibit transcriptional activity in plant cells and that mutations in the VQ motif affect the transcriptional activity of VQ29. We then functionally characterized VQ29 and showed that the hypocotyl growth of plants overexpressing VQ29 is hyposensitive to far-red and low-intensity white light, whereas a vq29 loss-of-function mutant exhibits decreased hypocotyl elongation under a low intensity of far-red or white light. Consistent with this, VQ29 expression is repressed by light in a phytochrome-dependent manner. Intriguingly, our yeast (Saccharomyces cerevisiae) twohybrid, bimolecular fluorescence complementation, and coimmunoprecipitation assays showed that VQ29 physically interacts with PHYTOCHROME-INTERACTING FACTOR1 (PIF1). We then showed that VQ29 and PIF1 directly bind to the promoter of a cell elongation-related gene, XYLOGLUCAN ENDOTRANSGLYCOSYLASE7, and coactivate its expression. Furthermore, the vq29 pif1 double mutant has shorter hypocotyls than either of the corresponding single mutants. Therefore, our study reveals that VQ29 is a negative transcriptional regulator of light-mediated inhibition of hypocotyl elongation that likely promotes the transcriptional activity of PIF1 during early seedling development.
学科领域	Plant Sciences
DOI	10.1104/pp.113.234492
收录类别	SCI
语种	英语
WOS关键词	TRANSCRIPTION FACTOR ; CHLOROPHYLL BIOSYNTHESIS ; NEGATIVE REGULATOR ; BOX PROTEIN ; SIGNAL-TRANSDUCTION ; POSITIVE REGULATOR ; DEFENSE RESPONSES ; STRESS TOLERANCE ; NUCLEAR-PROTEIN ; BINDING PROTEIN
WOS研究方向	Plant Sciences
WOS记录号	WOS:000334342800042
出版者	AMER SOC PLANT BIOLOGISTS
文献子类	Article
出版地	ROCKVILLE
EISSN	1532-2548
资助机构	National Natural Science Foundation of China [31170221, 31325002] ; Ministry of Agriculture of China [2011ZX08009-003]
作者邮箱	rclin@ibcas.ac.cn
作品OA属性	Bronze, Green Published
引用统计	被引频次：61[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27119
专题	中科院光生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Beijing 100093, Peoples R China 2.Univ,Chinese Acad Sci, Beijing 100049, Peoples R China 3.Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
推荐引用方式 GB/T 7714	Li, Yunliang,Jing, Yanjun,Li, Junjiao,et al. Arabidopsis VQ MOTIF-CONTAINING PROTEIN29 Represses Seedling Deetiolation by Interacting with PHYTOCHROME-INTERACTING FACTOR11[C][W][OPEN][J]. PLANT PHYSIOLOGY,2014,164(4):2068-2080.
APA	Li, Yunliang,Jing, Yanjun,Li, Junjiao,Xu, Gang,&Lin, Rongcheng.(2014).Arabidopsis VQ MOTIF-CONTAINING PROTEIN29 Represses Seedling Deetiolation by Interacting with PHYTOCHROME-INTERACTING FACTOR11[C][W][OPEN].PLANT PHYSIOLOGY,164(4),2068-2080.
MLA	Li, Yunliang,et al."Arabidopsis VQ MOTIF-CONTAINING PROTEIN29 Represses Seedling Deetiolation by Interacting with PHYTOCHROME-INTERACTING FACTOR11[C][W][OPEN]".PLANT PHYSIOLOGY 164.4(2014):2068-2080.

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