- International Journal of Systematic and Evolutionary Microbiology
- Volume 49, Issue 2
f Desulfobacca acetoxidans gen. nov., sp. nov., a novel acetate-degrading sulfate reducer isolated from sulfidogenic granular sludge
- Authors: Stefanie J. W. H. Oude Elferink†, W. M. Akkermans-van Vliet, Jaap J. Bogte, Alfons J. M. Stams
- Author for correspondence: Stefanie J. W. H. Oude Elferink. Tel: +31 320 237 359. Fax: +31 320 237 320. e-mail: firstname.lastname@example.org
- Int J Syst Evol Microbiol, April 1999 49: 345-350, doi: 10.1099/00207713-49-2-345
- Subject: New Taxa - Proteobacteria
- Published Online:
A mesophilic sulfate reducer, strain ASRB2T, was isolated with acetate as sole carbon and energy source from granular sludge of a laboratory-scale upflow anaerobic sludge bed reactor fed with acetate and sulfate. The bacterium was oval-shaped, 1·3 x 1·9-2·2 μm, non-motile and Gram-negative. Optimum growth with acetate occurred around 37°C in freshwater medium (doubling time: 1·7-2·2 d). Enzyme studies indicated that acetate was oxidized via the carbon monoxide dehydrogenase pathway. Growth was not supported by other organic acids, such as propionate, butyrate or lactate, alcohols such as ethanol or propanol, and hydrogen or formate. Sulfite and thiosulfate were also used as electron acceptors, but sulfur and nitrate were not reduced. Phylogenetically, strain ASRB2Tclustered with the delta subclass of the Proteobacteria. Its closest relatives were Desulfosarcina variabilis, Desulfacinum infernum and Syntrophus buswellii. Strain ASRB2Tis described as the type strain of Desulfobacca acetoxidans gen. nov., sp. nov.
The GenBank accession number for the 16S rRNA gene sequence of strain ASRB2Tis AF002671.
Present address: DLO-Institute for Animal Science and Health (ID-DLO), Department of Ruminant Nutrition, PO Box 65, 8200 AB Lelystad, The Netherlands.
© 1999, International Union of Microbiological Societies | Published by the Microbiology Society
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