

@article {11044,
	title = {Effect of {NADP} on light-induced cytochrome changes in membrane fragments from a blue-green alga},
	journal = {Biochim. Biophys. Acta},
	volume = {423},
	number = {2},
	year = {1976},
	month = {feb},
	pages = {303{\textendash}312},
	abstract = {The effect of NADP+ on light-induced steady-state redox changes of membrane-bound cytochromes was investigated in membrane fragements prepared from the blue-green algae Nostoc muscorum (Strain 7119) that had high rates of electron transport from water to NADP+ and from an artificial electron donor, reduced dichlorophenolindophenol (DCIPH2) to NDAP+. The membrane fragments contained very little phycocyanin and had excellent optical properties for spectrophotometric assays. With DCIPH2 as the electron donor, NADP+ had no effect on the light-induced redox changes of cytochromes: with or without NADP+, 715- or 664-nm illumination resulted mainly in the oxidation of cytochrome f and of other component(s) which may include a c-type cytochrome with an alpha peak at 549nm. With 664 nm illumination and water as the electron donor, NADP+ had a pronounced effect on the redox state of cytochromes, causing a shift toward oxidation of a component with a peak at 549 nm (possibly a c-type cytochrome), cytochrome f, and particularly cytochrome b559. Cytochrome b559 appeared to be a component of the main noncyclic electron transport chain and was photooxidized at physiological temperatures by Photosystem II. This photooxidation was apparent only in the presence of a terminal acceptor (NADP+) for the electron flow from water.},
	keywords = {Cell Membrane, Cyanobacteria, Cytochromes, Diuron, Electron Transport, Light, NADP, Spectrophotometry},
	issn = {0006-3002},
	author = {Tsujimoto, H. Y. and McSwain, B. D. and Hiyama, T. and Arnon, D. I.}
}
