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Copper tolerance in iron-reducing bacteria: Implications for copper mobilization in sediments

✍ Scribed by James T. Markwiese; Joseph S. Meyer; Patricia J.S. Colberg

Book ID: 102196946
Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 68 KB
Volume: 17
Category: Article
ISSN: 0730-7268
DOI: 10.1002/etc.5620170422

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✦ Synopsis

Iron-reducing bacteria enriched from a Cu-contaminated sediment were more tolerant of Cu adsorbed to hydrous ferric oxide (HFO) than were pristine-sediment bacteria. Tolerance was enhanced by increasing the Cu concentration in the culture medium over time, enabling the bacteria to begin reducing Cu-contaminated HFO sooner and at a faster rate than Cu-intolerant bacteria.

Copper tolerance confers a greater ability to reduce contaminated HFO and may result in a greater potential for Cu mobilization in sediments.

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