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NADPH Dehydrogenase-mediated respiratory electron transport in thylakoid membranes of the cyanobacterium Synechocystis sp. PCC 6803 is inactive in the light

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


Non-photochemical redox changes of the plastoquinone pools in darkness were investigated in the cyanobacterium Synechocystis sp. PCC 6803 by monitoring changes in Chl fluorescence yield during light-to-dark transitions. The inhibitors rotenone and mercury with or without 1 mM succinate fully suppressed the postillumination increase in Chl fluorescence in both NADPH dehydrogenase-defective (M55) and ΔCtaI cells. The latter cells lack subunit I of cytochrome aa3-type cytochrome c oxidase. These...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Molecules and Cells


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