Characterization of an Arabidopsis Thaliana Mutant with Impaired PsbO, One of Two Genes Encoding Extrinsic 33-kDa Proteins in Photosystem II

Overview

Journal FEBS Lett

Specialty Biochemistry

Date 2002 Jul 19

PMID 12123820

Citations 35

Authors

Reiko Murakami

Kentaro Ifuku

Atsushi Takabayashi

Toshiharu Shikanai

Tsuyoshi Endo

Fumihiko Sato

Affiliations

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Abstract

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.

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