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Cytochrome c oxidase of the cyanobacterium Synechocystis sp. PCC 6803 protects photosynthesis from salt stress

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Date

2003

Authors

Ryu, Jee-Youn
Suh, Kye-Hong
Chung, Young-Ho
Park, Young-Mok
Chow, Wah S (Fred)
Park, Youn-Il

Journal Title

Journal ISSN

Volume Title

Publisher

Korean Society of Molecular and Cell Biology

Abstract

We generated cytochrome c oxidase (CtaI)-defective cells of the cyanobacterium Synechocystis sp. PCC 6803 in order to investigate the physiological function of the CtaI-mediated respiratory electron transport pathway. When they were salt stressed, CtaI-defective cells showed a substantial decrease in photosynthesis due to reduction of the photochemical efficiency of Photosystem II and of the chlorophyll in the reaction center of the photo-oxidizable form of Photosystem I. These findings demostrate that CtaI-mediated electron transport is important for resistance to salt stress.

Description

Keywords

Keywords: cytochrome c oxidase; nicotinamide adenine dinucleotide phosphate; sodium chloride; vegetable protein; chlorophyll; article; Cyanobacterium; enzymology; light; metabolism; photosynthesis; photosystem I; photosystem II; physiology; electron transport; enzy Cytochrome c Oxidase; Respiration; Salt Stress; Synechocystis

Citation

URI

http://hdl.handle.net/1885/77047

Collections

ANU Research Publications

Source

Molecules and Cells

Type

Journal article

Book Title

Entity type

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DOI

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