Arsenic detoxification by geobacter species

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From: Applied and Environmental Microbiology(Vol. 83, Issue 4)
Publisher: American Society for Microbiology
Document Type: Report
Length: 85 words

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Abstract :

Analysis of 14 different Geobacter genomes show that all of the species have genes coding for an arsenic detoxification system (ars operon), and several have genes required for arsenic respiration (arr operon) and methylation (arsM). Elimination of arsR1 from the Geobacter sulfurreducens chromosome resulted in enhanced transcription of genes coding for the arsenic efflux pump (Acr3) and arsenate reductase (ArsC). These studies shed light on how Geobacter influences arsenic mobility in anoxic sediments and may help develop methods to remediate arsenic contamination in the subsurface.

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Gale Document Number: GALE|A495456671