Metabolism of l-alanine in Desulfotomaculum ruminis and two marine Desulfovibrio strains |
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Authors: | Alfons J. M. Stams Theo A. Hansen |
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Affiliation: | (1) Department of Microbiology, University of Groningen, Kerklaan 30, NL-9751 NN Haren, The Netherlands |
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Abstract: | The degradation of l-alanine by three strains of sulfate-reducing bacteria that can grow with l-alanine as an energy source was investigated. In Desulfotomaculum ruminis and most likely also in two marine Desulfovibrio strains alanine is converted to pyruvate via an NAD-dependent alanine dehydrogenase. D. ruminis contained high activities of soluble NADH and NADPH dehydrogenases. In the marine strains the activities were much lower and the NADH dehydrogenase was partly associated with the membrane fraction. |
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Keywords: | Sulfate reduction Desulfotomaculum ruminis Desulfovibrio Alanine degradation |
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