Arabidopsis DE-ETIOLATED1 Represses Photomorphogenesis by Positively   Regulating Phytochrome-Interacting Factors in the Dark

doi:10.1105/tpc.114.130666

CORC > 北京大学 > 生命科学学院

	Arabidopsis DE-ETIOLATED1 Represses Photomorphogenesis by Positively Regulating Phytochrome-Interacting Factors in the Dark
	Dong, Jie ; Tang, Dafang ; Gao, Zhaoxu ; Yu, Renbo ; Li, Kunlun ; He, Hang ; Terzaghi, William ; Deng, Xing Wang ; Chen, Haodong
刊名	plant cell
	2014
关键词	LIGHT-SIGNAL-TRANSDUCTION E3 UBIQUITIN LIGASE LOOP-HELIX PROTEIN TRANSCRIPTION FACTOR NEGATIVE REGULATOR PLANT DEVELOPMENT SEEDLING DEVELOPMENT PHOTOACTIVATED PHYTOCHROMES CHLOROPLAST DEVELOPMENT COP9 SIGNALOSOME
DOI	10.1105/tpc.114.130666
英文摘要	Arabidopsis thaliana seedlings undergo photomorphogenic development even in darkness when the function of DE-ETIOLATED1 (DET1), a repressor of photomorphogenesis, is disrupted. However, the mechanism by which DET1 represses photomorphogenesis remains unclear. Our results indicate that DET1 directly interacts with a group of transcription factors known as the phytochrome-interacting factors (PIFs). Furthermore, our results suggest that DET1 positively regulates PIF protein levels primarily by stabilizing PIF proteins in the dark. Genetic analysis showed that each pif single mutant could enhance the det1-1 phenotype, and ectopic expression of each PIF in det1-1 partially suppressed the det1-1 phenotype, based on hypocotyl elongation and cotyledon opening angles observed in darkness. Genomic analysis also revealed that DET1 may modulate the expression of light-regulated genes to mediate photomorphogenesis partially through PIFs. The observed interaction and regulation between DET1 and PIFs not only reveal how DET1 represses photomorphogenesis, but also suggest a possible mechanism by which two groups of photomorphogenic repressors, CONSTITUTIVE PHOTOMORPHOGENESIS/DET/FUSCA and PIFs, work in concert to repress photomorphogenesis in darkness.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000345919700014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Biochemistry & Molecular Biology; Plant Sciences; Cell Biology; SCI(E); 18; ARTICLE; chenhaodong@pku.edu.cn; 9; 3630-3645; 26
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/320083]
专题	生命科学学院
推荐引用方式 GB/T 7714	Dong, Jie,Tang, Dafang,Gao, Zhaoxu,et al. Arabidopsis DE-ETIOLATED1 Represses Photomorphogenesis by Positively Regulating Phytochrome-Interacting Factors in the Dark[J]. plant cell,2014.
APA	Dong, Jie.,Tang, Dafang.,Gao, Zhaoxu.,Yu, Renbo.,Li, Kunlun.,...&Chen, Haodong.(2014).Arabidopsis DE-ETIOLATED1 Represses Photomorphogenesis by Positively Regulating Phytochrome-Interacting Factors in the Dark.plant cell.
MLA	Dong, Jie,et al."Arabidopsis DE-ETIOLATED1 Represses Photomorphogenesis by Positively Regulating Phytochrome-Interacting Factors in the Dark".plant cell (2014).