Circadian rhythms in Arabidopsis and Brassica

摘要：

The endogenous circadian clock confers an internal periodicity that synchronizes an organism with the environmental period imposed by Earth”s rotation; when internal and external periods diverge, performance measures such as net photosynthesis et al decline dramatically. In plants, both transcriptional and posttranslational mechanisms are prominent in the basic network architecture of circadian systems. In Arabidopsis thaliana, as in most other eukaryotes studied to date, the circadian clock includes multiple interlocked feedback loops. Here we report two putative transcriptional factors, SA5, and its partially redundant homolog CS1, play critical roles in circadian clock. Mutation of SA5/CS1 leads to the lengthened circadian period.

关键词： biological clock circadian rhythm transcriptional mechanism Arabidopsis thaliana Brassica rapa

作者: Qiguang Xie Xian Liu Peng Wang Yubo Xu C.Robertson McClung XiaodongXu

作者单位: Department of Biological Sciences,Dartmouth College, Hanover, New Hampshire,03755,USA School of Life sciences,Hebei Normal University, Shijiazhuang,Hebei,050016,China School of Life sciences,Hebei Normal University,Shijiazhuang, Hebei, 050016, China School of Life sciences,Hebei Normal University,Shijiazhuang,Hebei,050016,China Department of Biological Sciences, Dartmouth College, Hanover,New Hampshire, 03755,USA School of Life sciences, Hebei Normal University,Shijiazhuang,Hebei, 050016, China

会议类型: 国内会议

会议名称: 2011全国植物生物学研讨会

会议地点: 南宁

会议语种:英文

页码: 13-14

在线出版日期: 2011-09-16（万方平台首次上网日期，不代表论文的发表时间）