Propionate and butyrate dependent bacterial sulfate reduction at extremely haloalkaline conditions and description of Desulfobotulus alkaliphilus sp. nov.
Open Access
- 4 November 2009
- journal article
- research article
- Published by Springer Science and Business Media LLC in Extremophiles
- Vol. 14 (1), 71-77
- https://doi.org/10.1007/s00792-009-0288-5
Abstract
Evidence on the utilization of simple fatty acids by sulfate-reducing bacteria (SRB) at extremely haloalkaline conditions are practically absent, except for a single case of syntrophy by Desulfonatronum on acetate. Our experiments with sediments from soda lakes of Kulunda Steppe (Altai, Russia) showed sulfide production with sulfate as electron acceptor and propionate and butyrate (but not acetate) as an electron donor at a pH 10–10.5 and a salinity 70–180 g l−1. With propionate as substrate, a highly enriched sulfidogenic culture was obtained in which the main component was identified as a novel representative of the family Syntrophobacteraceae. With butyrate as substrate, a pure SRB culture was isolated which oxidized butyrate and some higher fatty acids incompletely to acetate. The strain represents the first haloalkaliphilic representative of the family Desulfobacteraceae and is described as Desulfobotulus alkaliphilus sp. nov.Keywords
This publication has 21 references indexed in Scilit:
- Sulfidogenesis under extremely haloalkaline conditions by Desulfonatronospira thiodismutans gen. nov., sp. nov., and Desulfonatronospira delicata sp. nov. - a novel lineage of Deltaproteobacteria from hypersaline soda lakesMicrobiology, 2008
- Bacterial diversity and activity along a salinity gradient in soda lakes of the Kulunda Steppe (Altai, Russia)Extremophiles, 2007
- Diversity, Activity, and Abundance of Sulfate-Reducing Bacteria in Saline and Hypersaline Soda LakesApplied and Environmental Microbiology, 2007
- Dissimilatory Arsenate and Sulfate Reduction in Sediments of Two Hypersaline, Arsenic-Rich Soda Lakes: Mono and Searles Lakes, CaliforniaApplied and Environmental Microbiology, 2006
- Desulfonatronum cooperativum sp. nov., a novel hydrogenotrophic, alkaliphilic, sulfate-reducing bacterium, from a syntrophic culture growing on acetateInternational Journal of Systematic and Evolutionary Microbiology, 2005
- Desulfonatronum thiodismutans sp. nov., a novel alkaliphilic, sulfate-reducing bacterium capable of lithoautotrophic growthInternational Journal of Systematic and Evolutionary Microbiology, 2003
- Desulfonatronovibrio hydrogenovorans gen. nov., sp. nov., an Alkaliphilic, Sulfate-Reducing BacteriumInternational Journal of Systematic and Evolutionary Microbiology, 1997
- Sulphur metabolism in Thiorhodaceae I. Quantitative measurements on growing cells ofChromatium okeniiAntonie van Leeuwenhoek, 1964
- Determination of the base composition of deoxyribonucleic acid from its thermal denaturation temperatureJournal of Molecular Biology, 1962
- A procedure for the isolation of deoxyribonucleic acid from micro-organismsJournal of Molecular Biology, 1961