An Arabidopsis ctpA homologue is involved in the repair of photosystem II under high light

作     者：YIN ShuMing SUN XuWu ZHANG LiXin 

作者机构：School of Life Sciences Lanzhou University Lanzhou 730000 China Photosynthesis Research Center Key Laboratory of Photosynthesis and Environmental Molecular Physiology Institute of Botany Chinese Academy of Sciences Beijing 100093 China 

出 版 物：《Chinese Science Bulletin》 (Chin. Sci. Bull.)

年 卷 期：2008年第53卷第7期

页      面：1021-1026页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 

基　　金：the Frontier Project of Knowledge Innovation Engineering of the Chinese Academy of Sciences (Grant No. KJCX2-SW-w29) 

主　　题：ctpA 同源染色体 光合作用 强光 

摘      要：A T-DNA insertion mutant AtctpA1 was identified to study the physiological roles of a carboxyl-terminal processing protease (CtpA) homologue in Arabidopsis. Under normal growth conditions, disruption of AtctpA1 did not result in any apparent alterations in growth rate and thylakoid membrane protein components. However the mutant plants exhibited increased sensitivity to high irradiance. Degradation of PSII reaction center protein D1 was accelerated in the mutant during photoinhibition. These results demostrated that AtctpA1 was required for efficient repair of PSII in Arabidopsis under high irradiance.