Abstract
Eighty percent of the ATP and proton electrochemical gradient (-ZΔpH) formed during H2 oxidation in membranes from autotrophically grown exponential-phase cells of Alcaligenes eutrophus H16 was derived from a redox pathway that includes the membrane-bound hydrogenase complex and the cyanide-resistant (bo-type) oxidase. The H2/ubiquinone-1 oxidoreductase activity was coupled to energy transduction and was fully inhibited by the quinone along 2-n-hepthyl-4-hydroxyquinoline-N-oxide. We conclude that the cytochrome-c-containing pathway in exponential-phase A. eutrophus H16 cells plays a minor role in energy conservation.
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Received: 30 October 1995 / Accepted: 17 January 1996
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Komen, R., Schmidt, K. & Zannoni, D. Hydrogen oxidation by membranes from autotrophically grown Alcaligenes eutrophus H16: role of the cyanide-resistant pathway in energy transduction. Arch Microbiol 165, 418–420 (1996). https://doi.org/10.1007/s002030050347
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DOI: https://doi.org/10.1007/s002030050347