Cytochrome c oxidase of the cyanobacterium Synechocystis sp. PCC 6803 protects photosynthesis from salt stress
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
Collections
Source
Molecules and Cells
Type
Journal article