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Applied and Environmental Microbiology, April 2004, p. 2525-2528, Vol. 70, No. 4
0099-2240/04/$08.00+0     DOI: 10.1128/AEM.70.4.2525-2528.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.

Geobacter sulfurreducens Can Grow with Oxygen as a Terminal Electron Acceptor

Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 01003

Received 21 October 2003/ Accepted 31 December 2003

Geobacter sulfurreducens, previously classified as a strict anaerobe, tolerated exposure to atmospheric oxygen for at least 24 h and grew with oxygen as the sole electron acceptor at concentrations of 10% or less in the headspace. These results help explain how Geobacter species may survive in oxic subsurface environments, being poised to rapidly take advantage of the development of anoxic conditions.

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