Characteristics of a moderately thermophilic and acidophilic iron-oxidizing Thiobacillus

  • James A. Brierley
  • Paul R. Norris
  • Donovan P. Kelly
  • Norman W. Le Roux
Industrial Microbiology

Summary

Thiobacillus TH1 is an acidophilic chemolithotrophic heterotroph growing at temperatures up to about 50°C on media containing ferrous iron or pyrite when supplemented with yeast extract or glutathione. Virtually no carbon dioxide fixation occurred during growth on iron with yeast extract. Its DNA contains 48 mol % guanine + cytosine. The organism effects the thermophilic leaching of metals from pyrite, chalcopyrite, CuS, and copper concentrates. Oxidation of soluble ferrous iron at pH 1.6 was competitively inhibited by ferric iron and had a Km of 7.3 mM FeSO4.

Keywords

Oxidation Iron Copper Dioxide Carbon Dioxide 

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Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • James A. Brierley
    • 1
    • 2
  • Paul R. Norris
    • 1
    • 2
  • Donovan P. Kelly
    • 1
    • 2
  • Norman W. Le Roux
    • 1
    • 2
  1. 1.Department of Environmental SciencesUniversity of WarwickCoventryEngland
  2. 2.Department of IndustryWarren Spring LaboratoryStevenageEngland

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