Desulfovibrio alcoholovorans sp. nov., a sulfate-reducing bacterium able to grow on glycerol, 1,2- and 1,3-propanediol
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Desulfovibrio strain SPSN was isolated from an anaerobic industrial fermenter fed with waste water from the alcohol industry. The isolate was a gram-negative, non-spore-forming, curved organism, the motility of which is provided by a single polar flagellum. The oxidation of substrates was incomplete and included glycerol and 1,3-propanediol. Sulfate, sulfite, thiosulfate, and sulfur were utilized as electron acceptors. Pyruvate, fumarate and malate could be fermented. The DNA base composition was 64.5±0.3% G+C. Cytochrome c3 and desulfoviridin were present. On the basis of these characteristics and because strain SPSN could not be ascribed to any of the existing species, the isolate is established as a new species of the genus Desulfovibrio, and the name Desulfovibrio alcoholovorans is proposed.
Key wordsSulfate reduction Fermentation Glycerol 1,2-Propanediol 1,3-Propanediol Desulfovibrio
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