Premium
Copper tolerance in iron‐reducing bacteria: Implications for copper mobilization in sediments
Author(s) -
Markwiese James T.,
Meyer Joseph S.,
Colberg Patricia J.S.
Publication year - 1998
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620170422
Subject(s) - copper , bacteria , sediment , environmental chemistry , ferric , hydrous ferric oxides , iron bacteria , adsorption , chemistry , iron oxide , contamination , inorganic chemistry , ecology , biology , paleontology , sorption , organic chemistry , genetics
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.