Chromosomally-determined induced tolerance to copper in Escherichia coli |
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| Authors: | RJ Rowbury Noor Hana Hussain |
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| Institution: | Department of Biology (Darwin), University College London, London WC1E 6BT, UK |
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| Abstract: | Pre-exposure of Echerichia coli to sub-lethal concentrations of cupric sulphate induced copper tolerance: pre-exposed (habituated) organisms were essentially unaffected by concentrations of Cu2+ which completely prevented colony formation by non-habituated ones. The observed copper tolerance was not dependent on the selection of copper-resistant mutants but resulted from a phenotypic change in the organisms during the pre-exposure period. |
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