Identification and characterization of a novel acidotolerant Fe(III)-reducing bacterium from a 3,000-year-old acidic rock drainage site
Acidic, ochre-precipitating springs at Mam Tor, East Midlands, UK, are analogous to sites impacted by acid mine drainage over prolonged periods of time, and were studied for the presence of Fe(III)-reducing bacteria. From enrichment cultures inoculated with Mam Tor sediment, a facultative anaerobe c...
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Veröffentlicht in: | FEMS microbiology letters 2007-03, Vol.268 (2), p.151-157 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Acidic, ochre-precipitating springs at Mam Tor, East Midlands, UK, are analogous to sites impacted by acid mine drainage over prolonged periods of time, and were studied for the presence of Fe(III)-reducing bacteria. From enrichment cultures inoculated with Mam Tor sediment, a facultative anaerobe capable of reducing Fe(III) at pH values as low as three was isolated. 16S rRNA gene analysis showed that this bacterium is a close relative of Serratia species and not previously shown to respire using Fe(III) as an electron acceptor. Direct cell counts of the isolate grown with Fe(III)-NTA coupled with protein assays suggest that this bacterium is able to conserve energy for growth through Fe(III) reduction. |
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ISSN: | 0378-1097 |