Stable sulfur isotope fractionation during the reduction of thiosulfate by 
Dethiosulfovibrio russensis

Böttcher, Michael E.

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Stable sulfur isotope fractionation during the reduction of thiosulfate by Dethiosulfovibrio russensis

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Böttcher, Michael E.
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Böttcher, M. E. (2001). Stable sulfur isotope fractionation during the reduction of thiosulfate by Dethiosulfovibrio russensis. Isotopes in Environmental and Health Studies, 37, 97-99.

Cite as: https://hdl.handle.net/21.11116/0000-0004-3F99-A

Abstract

Stable sulfur isotope fractionation was investigated during reduction of thiosulfate by growing batch cultures of Dethiosulfovibrio russensis at a cell-specific reduction rate of 2.4 +/- 0.72 fmol cell(-1) d(-1) (28 degrees C). Citrate was used as carbon and energy source. The hydrogen sulfide produced by this sulfur- and thiosulfate-reducing bacterium was depleted in 34S by 11% compared to total thiosulfate sulfur, in agreement with previous results observed for sulfate-reducing bacteria. This indicates the operation of a similar pathway for thiosulfate reduction in these phylogenetically different bacteria.