Microbial arsenic metabolism: New twists on an old poison

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Phylogenetically diverse microorganisms metabolize arsenic despite its toxicity and are part of its robust iogeochemical cycle. Respiratory arsenate reductase is a reversible enzyme, functioning in some microbes as an arsenate reductase but in others as an arsenite oxidase. As(III) can serve as an electron donor for anoxygenic photolithoautotrophy and chemolithoautotrophy. Organoarsenicals, such as the feed additive roxarsone, can be used as a source of energy, releasing inorganic arsenic.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Microbial arsenic metabolism: New twists on an old poison
Series title Microbe
DOI 10.1128/microbe.5.53.1
Volume 5
Issue 2
Year Published 2010
Language English
Publisher American Society for Microbiology
Contributing office(s) Toxic Substances Hydrology Program
Description 7 p.
First page 53
Last page 59
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