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Control of respiration rate in non-growing cells of Paracoccus denitrificans.

ABSTRACT: By means of fluorimetric measurement and by direct determination of intracellular NAD+ and NADH contents, it was proved that the respiration rate of Paracoccus denitrificans cells utilizing glucose is limited by processes preceding NADH oxidation in the respiratory chain, so that the membrane NADH dehydrogenase is not saturated by its substrate. In the separated membrane fraction on saturation with exogenous NADH the main limiting factor is represented by NADH: ubiquinone oxidoreductase.

SUBMITTER: Kucera I

PROVIDER: S-EPMC1148345 | biostudies-other | 1987 Sep

REPOSITORIES: biostudies-other

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