Abstract
Extracts of Desulfotomaculum nigrificans, Desulfotomaculum orientis, and Desulfotomaculum ruminis exhibit low levels of inorganic pyrophosphatase but were found to have high levels of pyrophosphate:acetate phosphotransferase. Conversely, extracts of Desulfovibrio gigas, Desulfovibrio vulgaris, and Desulfovibrio desulfuricans Norway 4 were shown to have high levels of inorganic pyrophosphatase but negligible amounts of pyrophosphate:acetate phosphotransferase. Both enzymes are reductant activated and appear to have an analogous function in removing pyrophosphate formed during the activation of sulfate. Conservation of the bond energy of pyrophosphate in Desulfotomaculum eliminates the necessity for invoking electron-transfer-coupled phosphorylation to account for the growth of these bacteria on lactate plus sulfate. Relative growth yields of Desulfovibrio vulgaris and Desulfotomaculum orientis on lactate plus sulfate indicate that the latter does not carry out significant electron-transfer-coupled phosphorylation in this mode of growth.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
Reference46 articles.
1. A new sulfatereducing vibrio;Adams ML E;J. Gen. Microbiol.,1959
2. Studies on thermophilic sulfate-reducing bacteria. H. Hydrogenase activity of Clostridium nigrificans;Akagl J. M.;J. Bacteriol.,1961
3. Studies on thermophilic sulfate-reducing bacteria. III. Adenosinetriphosphate-sulfurylase of Clostridium nigrificans and Dem&Mfovibrio desulfuricans;Akagl J. IL;J. Bacteriol.,1962
4. Inorganic pyrophosphatase of Desulfovibrwo desulfuricans;Akagi J. ML;J. Bacteriol.,1963
5. Growth yields and growth rates of Desulfovibrio vulgaris (Marburg) growing on hydrogen and sulfate as sole energy
source. Arch;Badziong W.;Microbiol.,1978
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