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Appl Environ Microbiol. 2001 Mar;67(3):1363-5.

Acetate oxidation coupled to Fe(iii) reduction in hyperthermophilic microorganisms.

Author information

1
Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003, USA.

Abstract

No hyperthermophilic microorganisms have previously been shown to anaerobically oxidize acetate, the key extracellular intermediate in the anaerobic oxidation of organic matter. Here we report that two hyperthermophiles, Ferroglobus placidus and "Geoglobus ahangari," grow at 85 degrees C by oxidizing acetate to carbon dioxide, with Fe(III) serving as the electron acceptor. These results demonstrate that acetate could potentially be metabolized within the hot microbial ecosystems in which hyperthermophiles predominate, rather than diffusing to cooler environments prior to degradation as has been previously proposed.

PMID:
11229932
PMCID:
PMC92735
DOI:
10.1128/AEM.67.3.1363-1365.2001
[Indexed for MEDLINE]
Free PMC Article

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