Silver resistance in Pseudomonas stutzeri |
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| Authors: | R M Slawson E M Lohmeier-Vogel H Lee J T Trevors |
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| Institution: | (1) Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada;(2) Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada;(3) Department of Environmental Biology, University of Guelph, N1G 2W1 Guelph, Ontario, Canada |
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| Abstract: | Silver resistance was studied in a silver-resistant Pseudomonas stutzeri AG259 strain and compared to a silver-sensitive P. stutzeri JM303 strain. Silver resistance was not due to silver complexation to intracellular polyphosphate or the presence of low molecular weight metal-binding protein(s). Both the silver-resistant and silver-sensitive P. stutzeri strains produced H2S, with the silver-resistant AG259 strain producing lower amounts of H2S than the silver-sensitive JM303 strain. However, intracellular acid-labile sulfide levels were generally higher in the silver-resistant P. stutzeri AG259 strain. Silver resistance may be due to formation of silver-sulfide complexes in the silver-resistant P. stutzeri AG259 strain. |
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| Keywords: | bacteria hydrogen sulfide Pseudomonas stutzeri resistance silver accumulation |
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