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

被引:71
|
作者
Murakami, R
Ifuku, K
Takabayashi, A
Shikanai, T
Endo, T [1 ]
Sato, F
机构
[1] Kyoto Univ, Grad Sch Biostudies, Div Integrated Life Sci, Kyoto 6068502, Japan
[2] Nara Inst Sci & Technol, Grad Sch Biol Sci, Ikoma, Nara 6300101, Japan
关键词
chlorophyll fluorescence; oxygen-evolving complex; photosystem II; psbO; psbO2;
D O I
10.1016/S0014-5793(02)02963-0
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A 33-kDa protein component of the oxygen-evolving complex in photosystem 11 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. (C) 2002 Federation of European Biochemical Societies. Published by Elsevier Science B.V. All rights reserved.
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页码:138 / 142
页数:5
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