Characterization of an Arabidopsis thaliana mutant with impaired psbO, one of two genes encoding extrinsic 33‐kDa proteins in photosystem II

FEBS Letters

Endo, Tsuyoshi²  Murakami, Reiko²  Takabayashi, Atsushi²  Sato, Fumihiko²  Ifuku, Kentaro²  Shikanai, Toshiharu¹ 

[1] Graduate School of Biological Sciences, Nara Institute of Science and Technology, Ikoma, Nara 630-0101, Japan;Division of Integrated Life Sciences, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan

关键词: Chlorophyll fluorescence;    Oxygen-evolving complex;    Photosystem II;    psbO;    psbO2;    ΔF;    difference between F′m and steady-state fluorescence yield during illumination;    F o;    minimum fluorescence yield at open PSII centers;    F m;    maximum fluorescence yield induced by a saturation pulse in the dark-adapted state;    F′m;    maximum fluorescence yield during illumination;    F v;    F m−F o;    SDS;    sodium dodecylsulfate;    PSII;    photosystem II;   

DOI  :  10.1016/S0014-5793(02)02963-0

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

A 33-kDa protein component of the oxygen-evolving complex in photosystem II is essential for photosynthesis, and it has been believed that mutants with deletion of this 33-kDa protein are not found in higher plants. We report here the first isolation of an Arabidopsis thaliana mutant with a defect in one of the genes for the 33-kDa proteins, psbO, and an intact gene (psbO2). This mutant showed considerable growth retardation, suggesting that there is a functional difference between psbO and psbO2.

【 授权许可】

Unknown