American Society for Microbiology, Applied and Environmental Microbiology, 10(75), p. 3362-3365, 2009
DOI: 10.1128/aem.00336-09
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ABSTRACT Novel arsenite [As(III)] oxidase structural genes ( aoxAB ) were cloned from Hydrogenobaculum bacteria isolated from an acidic geothermal spring. Reverse transcriptase PCR demonstrated expression throughout the outflow channel, and the aoxB cDNA clones exhibited distribution patterns relative to the physicochemical gradients in the spring. Microelectrode analyses provided evidence of quantitative As(III) transformation within the microbial mat.