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Stability of copper tolerance in Thiobacillus ferrooxidans

Natarajan, KA and Sudeesha, K and Rao, GR (1994) Stability of copper tolerance in Thiobacillus ferrooxidans. In: Antonie van Leeuwenhoek, 66 (4). pp. 303-306.

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A strain of Thiobacillus ferrooxidans MAL-4-1 was adapted to grow at higher concentrations of copper by repeated subculturing in the presence of increasing levels of added cupric ions in 9K medium. The strains adapted to copper were found to be more efficient in bioleaching of copper from concentrates. When copper tolerant strains were back cultured repeatedly in 9K medium without cupric ions, the initially developed metal tolerance was observed to be lost. This indicates that the copper tolerance developed is stress-dependent and not a permanent trait of the adapted strain.

Item Type: Journal Article
Publication: Antonie van Leeuwenhoek
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer.
Department/Centre: Division of Biological Sciences > Microbiology & Cell Biology
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 12 Apr 2011 12:31
Last Modified: 12 Apr 2011 12:31
URI: http://eprints.iisc.ac.in/id/eprint/36827

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