Sulphur isotope fractionation during the reduction of elemental sulphur and 
thiosulphate by Dethiosulfovibrio spp.

Surkov, A. V.; Boettcher, M. E.; Kuever, J.

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Sulphur isotope fractionation during the reduction of elemental sulphur and thiosulphate by Dethiosulfovibrio spp.

MPS-Authors

/persons/resource/persons210281

Boettcher, M. E.
Department of Biogeochemistry, Max Planck Institute for Marine Microbiology, Max Planck Society;

/persons/resource/persons210552

Kuever, J.
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Surkov, A. V., Boettcher, M. E., & Kuever, J. (2012). Sulphur isotope fractionation during the reduction of elemental sulphur and thiosulphate by Dethiosulfovibrio spp. Isotopes in Environmental and Health Studies, 48(1 Sp. Iss. SI), 65-75.

引用: https://hdl.handle.net/21.11116/0000-0001-C8C1-3

要旨

Stable sulphur isotope fractionation was investigated during reduction of thiosulphate and elemental sulphur at 28°C by growing batch cultures of the sulphur- and thiosulphate-reducing bacteria Dethiosulfovibrio marinus (type strain DSM 12537) and Dethiosulfovibrio russensis (type strain DSM 12538), using citrate as carbon and energy source. The cell-specific thiosulphate reduction rate in the growth phase was 7.4±3.9 fmol cell−1 d−1. The hydrogen sulphide produced was enriched in 32S by 10.3±1 ‰ compared with total thiosulphate sulphur, close to previous experimental results observed for other sulphate- and non-sulphate-reducing bacteria. Elemental sulphur reduction yields sulphur isotope enrichment factors between−1.3 and−5.2 ‰ for D. russensis and−1.7 and−5.1 ‰ for D. marinus. The smaller fractionation effects are observed in the exponential growth phase (cellular rates between 5 and 70 fmol S° cell−1 d−1) and enhanced discrimination under conditions of citrate depletion and cell lysis (cellular rates between 0.3 and 3 fmol S° cell−1 d−1).