Bacterial Colonization of Arsenic-Rich Environments
Author Information
Author(s): Muller Daniel, Médigue Claudine, Koechler Sandrine, Barbe Valérie, Barakat Mohamed, Talla Emmanuel, Bonnefoy Violaine, Krin Evelyne, Arsène-Ploetze Florence, Carapito Christine, Chandler Michael, Cournoyer Benoît, Cruveiller Stéphane, Dossat Caroline, Duval Simon, Heymann Michael, Leize Emmanuelle, Lieutaud Aurélie, Lièvremont Didier, Makita Yuko, Mangenot Sophie, Nitschke Wolfgang, Ortet Philippe, Perdrial Nicolas, Schoepp Barbara, Siguier Patricia, Simeonova Diliana D, Rouy Zoé, Segurens Béatrice, Turlin Evelyne, Vallenet David, Dorsselaer Alain Van, Weiss Stéphanie, Weissenbach Jean, Lett Marie-Claire, Danchin Antoine, Bertin Philippe N
Primary Institution: Génétique Moléculaire, Génomique et Microbiologie, UMR7156 CNRS and Université Louis Pasteur, Strasbourg, France
Hypothesis
How does Herminiimonas arsenicoxydans cope with arsenic in its environment?
Conclusion
The study reveals that H. arsenicoxydans has developed multiple mechanisms to efficiently colonize arsenic-rich environments.
Supporting Evidence
- H. arsenicoxydans possesses mechanisms for arsenic oxidation, reduction, and efflux.
- The bacterium shows positive chemotaxis towards arsenic.
- It can metabolize arsenic and use it for energy.
- The genome contains multiple arsenic resistance operons.
- Arsenic detoxification mechanisms may have played a role in the evolution of early life.
Takeaway
This study shows that a special bacterium can live in places with a lot of arsenic by using clever tricks to survive.
Methodology
The genome of H. arsenicoxydans was sequenced and analyzed for its metabolic capabilities and mechanisms of arsenic resistance.
Limitations
The study does not explore the ecological impact of H. arsenicoxydans in natural environments.
Digital Object Identifier (DOI)
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