Biochemical analysis of novel clock associated genes

2015 Fiscal Year Final Research Report

• Project/Area Number: 26870267
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied biochemistry; Plant molecular biology/Plant physiology
• Research Institution: Nagoya University
• Principal Investigator: Nakamichi Norihito 名古屋大学, 理学研究科(WPI), 准教授 (90513440)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 植物 / 概日時計 / 概日リズム / 転写因子 / 転写ネットワーク

Outline of Final Research Achievements

Circadian rhythms is an endogenous oscillation with a period about 24 hr. In order to understand molecular mechanism underlying circadian clock in plants, we performed functional genomic approaches. This project found that Arabidopsis CCA1, a morning-expressed clock-associated transcriptional factor, directly regulates a set of clock-associated genes expressed in the evening. Furthermore, CCA1 directly regulates key genes involved in environmental stress responses. These genes are expressed in the evening. This study illustrates that direct binding by CCA1 in the morning defines strong repression in a genomic scale.

Free Research Field

植物生理分子生物学