Divergent evolutionary trajectories and mechanistic insights into arsenite and antimonite adaptation in the bacterium Achromobacter sp. As-55.

Abstract excerpt

Microbes in mining areas face multifaceted stress from arsenic (As) or antimony (Sb) exposure, yet their distinct adaptations to high levels of arsenite (As(III)) or antimonite (Sb(III)) are not well understood. In this study, we subjected the As(III)-oxidizing bacterium Achromobacter sp. As-55 to laboratory evolution under As(III) or Sb(III) stress, yielding strains capable of oxidizing As(III) under very high...

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