Isolation and Characterization of Acidithiobacillus ferrooxidans Strain D3-2 Active in Copper Bioleaching from a Copper Mine in Chile

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概要

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• Acidithiobacillus ferrooxidans strain D3-2, which has a high copper bioleaching activity, was isolated from a low-grade sulfide ore dump in Chile. The amounts of Cu2+ solubilized from 1% chalcopyrite (CuFeS2) concentrate medium (pH 2.5) by A. ferrooxidans strains D3-2, D3-6, and ATCC 23270 and 33020 were 1360, 1080, 650, and 600 mg·l−1·30 d−1. The iron oxidase activities of D3-2, D3-6, and ATCC 23270 were 11.7, 13.2, and 27.9 μl O2 uptake·mg protein−1·min−1. In contrast, the sulfite oxidase activities of strains D3-2, D3-6, and ATCC 23270 were 5.8, 2.9, and 1.0 μl O2 uptake·mg protein−1·min−1. Both of cell growth and Cu-bioleaching activity of strains D3-6 and ATCC 23270, but not, of D3-2, in the chalcopyrite concentrate medium were completely inhibited in the presence of 5 mM sodium bisulfite. The sulfite oxidase of strain D3-2 was much more resistant to sulfite ion than that of strain ATCC 23270. Since sulfite ion is a highly toxic intermediate produced during sulfur oxidation that strongly inhibits iron oxidase activity, these results confirm that strain D3-2, with a unique sulfite resistant-sulfite oxidase, was able to solubilize more copper from chalcopyrite than strain ATCC 23270, with a sulfite-sensitive sulfite oxidase.

• 社団法人 日本農芸化学会の論文

著者

• Sugio Tsuyoshi

  Division of Bioscience, The Graduate School of Natural Science and Technology, Okayama University

• TAKEUCHI Fumiaki

  Environmental Management Center, Okayama University

• Wakabayashi Masanori

  Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

• Kanao Tadayoshi

  Division of Bioscience, Graduate School of Natural Science and Technology, Okayama University

関連論文

• Volatilization of Metal Mercury from Organomercurials by Highly Mercury-Resistant Acidithiobacillus ferrooxidans MON-1
• Ferrous Iron Production Mediated by Tetrathionate Hydrolase in Tetrathionate-, Sulfur-, and Iron-Grown Acidithiobacillus ferrooxidans ATCC 23270 Cells
• Isolation and Characterization of Acidithiobacillus ferrooxidans Strain D3-2 Active in Copper Bioleaching from a Copper Mine in Chile
• Reduction of Hg2+ with Reduced Mammalian Cytochrome c by Cytochrome c Oxidase Purified from a Mercury-Resistant Acidithiobacillus ferrooxidans Strain, MON-1
• Increase in Fe2+-Producing Activity during Growth of Acidithiobacillus ferrooxidans ATCC23270 on Sulfur
• Existence of aa_3-Type Ubiquinol Oxidase as a Terminal Oxidase in Sulfite Oxidation of Acidithiobacillus thiooxidans
• Growth Inhibition by Tungsten in the Sulfur-Oxidizing Bacterium Acidithiobacillus thiooxidans
• Existence of an Iron-Oxidizing Bacterium Acidithiobacillus ferrooxidans Resistant to Organomercurial Compounds(Environmental Biotechnology)
• Existence of a Tungsten-Binding Protein in Acidithiobacillus ferrooxidans AP19-3(ENVIRONMENTAL BIOTECHNOLOGY)
• Volatilization of Mercury by an Iron Oxidation Enzyme System in a Highly Mercury-resistant Acidithiobacillus ferrooxidans Strain MON-1(Microbiology & Fermentation Technology)
• Volatilization and Recovery of Mercury from Mercury Wastewater Produced in the Course of Laboratory Work Using Acidithiobacillus ferrooxidans SUG 2-2 Cells
• Volatilization of Mercury under Acidic Conditions from Mercury-polluted Soil by a Mercury-resistant Acidithiobacillus ferrooxidans SUG 2-2(Microbiology & Fermentation Technology)
• Cytochrome c Oxidase Purified from a Mercury-Resistant Strain of Acidithiobacillus ferrooxidans Volatilizes Mercury
• Mechanism of Growth Inhibition by Tungsten in Acidithiobacillus ferrooxidans
• Purification and Some Properties of Sulfur Reductase from the Iron-Oxidizing Bacterium Thiobacillus ferrooxidans NASF-1
• Isolation and Some Properties of Thiobacillus ferrooxidans Strains with Differing Levels of Mercury Resistance from Natural Environments
• Inhibition of Iron-oxidizing Activity by Bisulfite Ion in Thiobacillus ferrooxidans
• Cloning and Expression of the Thiobacillus Ferroxidans 3-Isopropylmalate Dehydrogenase Gene in Escherichia coli
• Growth Inhibition of Acidiphilium Species by Organic Acids Contained in Yeast Extract
• Isolation and Characterization of Restriction Endonucleases from Acidiphilium sp. 16R and 22M
• Isolation and Some Properties of an Iron-Oxidizing Bacterium Thiobacillus ferrooxidans Resistant to Bisulfite Ion
• Ferrous-iron-dependent Uptake of L-Glutamate by a Mesophilic, Mixotrophic Iron-oxidizing Bacterium Strain OKM-9(Microbiology & Fermentation Technology)
• Purification and Characterization of Sulfur Reductase from a Moderately Thermophilic Bacterical Strain, TI-1,that Oxidizes Iron
• Production of Hydrogen Sulfide by a Moderately Thermophilic Iron-Oxiding Bacterium Strain TI-1
• Production of Hydrogen Sulfide from Tetrathionate by the Iron-Oxidizing Bacterium Thiobacillus ferrooxidans NASF-1
• Isolation and Some Properties of a Mesophilic and Mixotrophic Iron-oxidizing Bacterium, OKM-9
• Purification and Some Properties of Glutathione Reductase from Iron-oxidizing Bacterium Thiobacillus ferrooxidans
• The Mechanism of Copper Leaching by Intact Cells of Thiobacillus ferrooxidans(Microbiology & Fermentation Industry)
• The Regulation of Sulfur Use by Ferrous Ion in Thiobacillus ferrooxidans(Microbiology & Fermentation Industry)
• Purification and Characterization of Glycerol 3-Phosphate Dehydrogenase from Two Types of Acidiphilium sp.(Biological Chemistry)
• Effect of Co^ on the GSH Uptake and Release by Thiobacillus ferrooxidans(Microbiology & Fermentation Industry)
• Mechanism of Tetravalent Manganese Reduction with Elemental Sulfur by Thiobacillus ferrooxidans(Microbiology & Fermentation Industry)
• Purification and Properties of an Acidic β-Glucosidase from Acidobacterium capsulatum
• A Combination of Unnatural Phosphatidyl Acceptor and Tandem Electrospray Ionization Mass Spectrometry for Tracing Phospholipase D Activity
• Ferrous Iron Production Mediated by Tetrathionate Hydrolase in Tetrathionate-, Sulfur-, and Iron-Grown Acidithiobacillus ferrooxidans ATCC 23270 Cells
• Increase in Fe^-Producing Activity during Growth of Acidithiobacillus ferrooxidans ATCC23270 on Sulfur
• Reduction of Hg^ with Reduced Mammalian Cytochrome c by Cytochrome c Oxidase Purified from a Mercury-Resistant Acidithiobacillus ferrooxidans Strain, MON-1
• Isolation and Characterization of Acidithiobacillus ferrooxidans Strain D3-2 Active in Copper Bioleaching from a Copper Mine in Chile
• Volatilization of Metal Mercury from Organomercurials by Highly Mercury-Resistant Acidithiobacillus ferrooxidans MON-1
• Sulfite Oxidation Catalyzed by aa_3-Type Cytochrome c Oxidase in Acidithiobacillus ferrooxidans

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