Multiple controls affect arsenite oxidase gene expression in Herminiimonas arsenicoxydans.

ABSTRACT:

Background

Both the speciation and toxicity of arsenic are affected by bacterial transformations, i.e. oxidation, reduction or methylation. These transformations have a major impact on environmental contamination and more particularly on arsenic contamination of drinking water. Herminiimonas arsenicoxydans has been isolated from an arsenic- contaminated environment and has developed various mechanisms for coping with arsenic, including the oxidation of As(III) to As(V) as a detoxification mechanism.

Results

In the present study, a differential transcriptome analysis was used to identify genes, including arsenite oxidase encoding genes, involved in the response of H. arsenicoxydans to As(III). To get insight into the molecular mechanisms of this enzyme activity, a Tn5 transpo

SUBMITTER: Koechler S 

PROVIDER: S-EPMC2848651 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature