Coordinated transcriptional regulation underlying the circadian clock in Arabidopsis

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	Coordinated transcriptional regulation underlying the circadian clock in Arabidopsis
	Li, G ; Siddiqui, H ; Teng, YB ; Lin, RC ; Wan, XY ; Li, JG ; Lau, OS ; Ouyang, XH ; Dai, MQ ; Wan, JM ; Devlin, PF ; Deng, XW ; Wang, HY
刊名	NATURE CELL BIOLOGY
	2011
卷号	13 期号:5
ISSN号	1465-7392
中文摘要	The circadian clock controls many metabolic, developmental and physiological processes in a time-of-day-specific manner in both plants and animals(1,2). The photoreceptors involved in the perception of light and entrainment of the circadian clock have been well characterized in plants(3). However, how light signals are transduced from the photoreceptors to the central circadian oscillator, and how the rhythmic expression pattern of a clock gene is generated and maintained by diurnal light signals remain unclear. Here, we show that in Arabidopsis thaliana, FHY3, FAR1 and HY5, three positive regulators of the phytochrome A signalling pathway, directly bind to the promoter of ELF4, a proposed component of the central oscillator, and activate its expression during the day, whereas the circadian-controlled CCA1 and LHY proteins directly suppress ELF4 expression periodically at dawn through physical interactions with these transcription-promoting factors. Our findings provide evidence that a set of light- and circadian-regulated transcription factors act directly and coordinately at the ELF4 promoter to regulate its cyclic expression, and establish a potential molecular link connecting the environmental light dark cycle to the central oscillator.
语种	英语
公开日期	2015-01-09
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/5770]
专题	西双版纳热带植物园_文献共享
推荐引用方式 GB/T 7714	Li, G,Siddiqui, H,Teng, YB,et al. Coordinated transcriptional regulation underlying the circadian clock in Arabidopsis[J]. NATURE CELL BIOLOGY,2011,13(5).
APA	Li, G.,Siddiqui, H.,Teng, YB.,Lin, RC.,Wan, XY.,...&Wang, HY.(2011).Coordinated transcriptional regulation underlying the circadian clock in Arabidopsis.NATURE CELL BIOLOGY,13(5).
MLA	Li, G,et al."Coordinated transcriptional regulation underlying the circadian clock in Arabidopsis".NATURE CELL BIOLOGY 13.5(2011).