期刊
GEOMICROBIOLOGY JOURNAL
卷 36, 期 1, 页码 19-29出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01490451.2018.1489915
关键词
Pyrite; nitrate; reduced sulfur; reduced Fe; chemolithoautotrophic oxidation; nitrate-reducing bacterium
资金
- German Research Foundation (DFG) Electron Transfer Processes in Anoxic Aquifers [FOR 580]
We compared the response at neutral pH of some denitrifiers to different electron donors such as reduced sulfur (pyrite, S(0), and marcasite) and reduced Fe. Chemolithoautotrophic oxidation of pyrite with nitrate as electron acceptor was not possible when the pyrite was in a pure crystalline form, whereas oxidation of synthesized FeS2 of low crystallinity and of S(0) with nitrate as electron acceptor was possible. Neither nitrite nor sulfate was formed when Fe(II)-oxidizing strain Acidovorax sp. BoFeN1 was tested. Microbial reduction of nitrate appears to be induced via S oxidation but not via Fe oxidation.
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