Development ofThiobacillus ferrooxidans ATCC 19859 strains tolerant to copper and zinc |
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| Authors: | G P Brahmaprakash Preston Devasia K S Jagadish K A Natarajan G Ramananda Rao |
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| Affiliation: | (1) Department of Metallurgy, Indian Institute of Science, 560 012 Bangalore, India;(2) Microbiology and Cell Biology Laboratory, Indian Institute of Science, 560 012 Bangalore, India |
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| Abstract: | A study was carried out to develop strains ofThiobacillus ferrooxidans ATCC 19859 tolerant to higher levels of heavy metal ions. Strains ofT. ferrooxidans capable of growing in Cu2+ (30 g/L) and Zn2+ (60 g/L) have been obtained. The ability of strains tolerant to either copper or zinc to grow in medium containing both the metals has been examined. The copper-tolerant strain (25 g/L) grows better in the medium containing both metals (Cu2+ 25 g/L and Zn2+ 40 g/L) compared to the zinc-tolerant strain (40 g/L). |
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| Keywords: | Thiobacillus ferrooxidans tolerance to copper tolerance to zinc iron oxidation |
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