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Physiology

Killing of Bacteria by Copper Surfaces Involves Dissolved Copper

Cristina Molteni, Helge K. Abicht, Marc Solioz
Cristina Molteni
Department of Clinical Pharmacology and Visceral Research, University of Berne, Murtenstrasse 35, 3010 Berne, Switzerland
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Helge K. Abicht
Department of Clinical Pharmacology and Visceral Research, University of Berne, Murtenstrasse 35, 3010 Berne, Switzerland
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Marc Solioz
Department of Clinical Pharmacology and Visceral Research, University of Berne, Murtenstrasse 35, 3010 Berne, Switzerland
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  • For correspondence: marc.solioz@ikp.unibe.ch
DOI: 10.1128/AEM.00424-10
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ABSTRACT

Bacteria are rapidly killed on copper surfaces. However, the mechanism of this process remains unclear. Using Enterococcus hirae, the effect of inactivation of copper homeostatic genes and of medium compositions on survival and copper dissolution was tested. The results support a role for dissolved copper ions in killing.

  • Copyright © 2010 American Society for Microbiology
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Killing of Bacteria by Copper Surfaces Involves Dissolved Copper
Cristina Molteni, Helge K. Abicht, Marc Solioz
Applied and Environmental Microbiology Jun 2010, 76 (12) 4099-4101; DOI: 10.1128/AEM.00424-10

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Killing of Bacteria by Copper Surfaces Involves Dissolved Copper
Cristina Molteni, Helge K. Abicht, Marc Solioz
Applied and Environmental Microbiology Jun 2010, 76 (12) 4099-4101; DOI: 10.1128/AEM.00424-10
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  • Top
  • Article
    • ABSTRACT
    • An E. hirae copper export mutant is more sensitive to killing by copper.
    • Killing rates depend on the medium composition.
    • Largely different amounts of copper are dissolved by different media.
    • ACKNOWLEDGMENTS
    • FOOTNOTES
    • REFERENCES
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KEYWORDS

copper
Enterococcus
Microbial Viability

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