Publikation: Fermentation of acetylene by an obligate anaerobe, Pelobacter acetylenicus sp. nov.
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1985
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Archives of Microbiology. 1985, 142(3), pp. 295-301. ISSN 0302-8933. eISSN 1432-072X. Available under: doi: 10.1007/BF00693407
Zusammenfassung
Four strains of strictly anaerobic Gram-negative rod-shaped non-sporeforming bacteria were enriched and isolated from marine and freshwater sediments with acetylene (ethine) as sole source of carbon and energy. Acetylene, acetoin, ethanolamine, choline, 1,2-propanediol, and glycerol were the only substrates utilized for growth, the latter two only in the presence of small amounts of acetate. Substrates were fermented by disproportionation to acetate and ethanol or the respective higher acids and alcohols. No cytochromes were detectable; the guanine plus cytosine content of the DNA was 57.1 _+ 0.2 tool%. Alcohol dehydrogenase, aldehyde dehydrogenase, phosphate acetyltransferase, and acetate kinase were found in high activities in cell-free extracts of acetylene-grown cells indicating that acetylene was metabolized via hydration to acetaldehyde.
Ethanol was oxidized to acetate in syntrophic coculture with hydrogen-scavenging anaerobes. The new isolates are described as a new species in the genus Pelobacter, P. acetylenicus.
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SCHINK, Bernhard, 1985. Fermentation of acetylene by an obligate anaerobe, Pelobacter acetylenicus sp. nov.. In: Archives of Microbiology. 1985, 142(3), pp. 295-301. ISSN 0302-8933. eISSN 1432-072X. Available under: doi: 10.1007/BF00693407BibTex
@article{Schink1985Ferme-7286,
year={1985},
doi={10.1007/BF00693407},
title={Fermentation of acetylene by an obligate anaerobe, Pelobacter acetylenicus sp. nov.},
number={3},
volume={142},
issn={0302-8933},
journal={Archives of Microbiology},
pages={295--301},
author={Schink, Bernhard}
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<dcterms:abstract xml:lang="eng">Four strains of strictly anaerobic Gram-negative rod-shaped non-sporeforming bacteria were enriched and isolated from marine and freshwater sediments with acetylene (ethine) as sole source of carbon and energy. Acetylene, acetoin, ethanolamine, choline, 1,2-propanediol, and glycerol were the only substrates utilized for growth, the latter two only in the presence of small amounts of acetate. Substrates were fermented by disproportionation to acetate and ethanol or the respective higher acids and alcohols. No cytochromes were detectable; the guanine plus cytosine content of the DNA was 57.1 _+ 0.2 tool%. Alcohol dehydrogenase, aldehyde dehydrogenase, phosphate acetyltransferase, and acetate kinase were found in high activities in cell-free extracts of acetylene-grown cells indicating that acetylene was metabolized via hydration to acetaldehyde.<br />Ethanol was oxidized to acetate in syntrophic coculture with hydrogen-scavenging anaerobes. The new isolates are described as a new species in the genus Pelobacter, P. acetylenicus.</dcterms:abstract>
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