Kinetics and energetics of reduced sulfur oxidation by chemostat cultures of Thiobacillus ferrooxidans

1986 ◽  
Vol 52 (6) ◽  
pp. 507-518 ◽  
Author(s):  
W. Hazeu ◽  
W. Bijleveld ◽  
J. T. C. Grotenhuis ◽  
E. Kakes ◽  
J. G. Kuenen
Keyword(s):  
Thiobacillus Ferrooxidans ◽  
Sulfur Oxidation ◽  
Chemostat Cultures ◽  
Reduced Sulfur

scholarly journals The production and utilization of intermediary elemental sulfur during the oxidation of reduced sulfur compounds by Thiobacillus ferrooxidans

1988 ◽  
Vol 150 (6) ◽  
pp. 574-579 ◽  
Author(s):  
W. Hazeu ◽  
W. H. Batenburg-van der Vegte ◽  
P. Bos ◽  
R. K. van der Pas ◽  
J. G. Kuenen
Keyword(s):  
Elemental Sulfur ◽  
Thiobacillus Ferrooxidans ◽  
Sulfur Compounds ◽  
Reduced Sulfur Compounds ◽  
Reduced Sulfur

scholarly journals Role of a Ferric Ion-Reducing System in Sulfur Oxidation of Thiobacillus ferrooxidans

1985 ◽  
Vol 49 (6) ◽  
pp. 1401-1406 ◽  
Author(s):  
Tsuyoshi Sugio ◽  
Chitoshi Domatsu ◽  
Osamu Munakata ◽  
Tatsuo Tano ◽  
Kazutami Imai
Keyword(s):  
Thiobacillus Ferrooxidans ◽  
Sulfur Oxidation ◽  
Ferric Ion

OXIDATION OF INORGANIC SULFUR COMPOUNDS BY WASHED CELL SUSPENSIONS OF THIOBACILLUS FERROOXIDANS

1966 ◽  
Vol 12 (5) ◽  
pp. 957-964 ◽  
Author(s):  
J. Landesman ◽  
D. W. Duncan ◽  
C. C. Walden
Keyword(s):  
Organic Compounds ◽  
Elemental Sulfur ◽  
Thiobacillus Ferrooxidans ◽  
Sulfur Oxidation ◽  
Sulfur Compounds ◽  
Maximum Temperature ◽  
Washed Cell ◽  
Inorganic Sulfur ◽  
Respiration Rates ◽  
Growth Adaptation

Oxidation of various inorganic sulfur compounds by Thiobacillus ferrooxidans was studied, and conditions necessary for maximum respiration rates were established. Optimum oxidation of elemental sulfur occurred at pH 5.0 and gave a Qo2(N) of 726; oxidation of thiosulfate gave a maximum Qo2(N) of 514 at pH 4.0; tetra- and tri-thionate, when oxidized at pH 6.0, gave a maximum Qo2(N) of 103 and 113, respectively. Polythionates accumulated during thiosulfate oxidation, but did not during oxidation of elemental sulfur. Metallic sulfide minerals were oxidized optimally as follows: chalcopyrite, pH 2.0, maximum Qo2(N) 3200; bornite, pH 3.0, maximum Qo2(N) 450; pyrite, pH 2.0, maximum Qo2(N) 1600. Maximum temperature for oxidation of all inorganic sulfur compounds tested was 40 C.The effect of a variety of organic compounds on sulfur oxidation is presented.T. ferrooxidans requires growth adaptation on iron for maximum respiration on that substrate; however, sulfur oxidation is not inducible. Iron and sulfur can be oxidized simultaneously, giving a rate equal to the sum of the maximum rates of oxidation of the two substrates individually.

Production of ferrous ions as intermediates during aerobic sulfur oxidation in Thiobacillus ferrooxidans.

1986 ◽  
Vol 50 (11) ◽  
pp. 2755-2761 ◽  
Author(s):  
Tsuyoshi SUGIO ◽  
Wataru MIZUNASHI ◽  
Tatsuo TANO ◽  
Kazutami IMAI
Keyword(s):  
Thiobacillus Ferrooxidans ◽  
Sulfur Oxidation ◽  
Ferrous Ions

Inhibition of growth, iron, and sulfur oxidation in Thiobacillus ferrooxidans by simple organic compounds

1976 ◽  
Vol 22 (5) ◽  
pp. 719-730 ◽  
Author(s):  
Jon H. Tuttle ◽  
Patrick R. Dugan
Keyword(s):  
Organic Compounds ◽  
Ferrous Iron ◽  
Thiobacillus Ferrooxidans ◽  
Cell Envelope ◽  
Iron Oxidation ◽  
Inorganic Ions ◽  
Sulfur Oxidation ◽  
Physical Treatment ◽  
Inhibition Of Growth ◽  
Iron And Sulfur Oxidation

Iron and sulfur oxidation by Thiobacillus ferrooxidans as well as growth on ferrous iron were inhibited by a variety of low molecular weight organic compounds. The influences of chemical structure of the organic inhibitors, pH, temperature, physical treatment of cells, and added inhibitory or stimulatory inorganic ions and iron oxidation suggest that a major factor contributing to the inhibitory effects on iron oxidation is the relative electronegativity of the organic molecule. The data also suggest that inhibitory organic compounds may (i) directly affect the iron-oxidizing enzyme system, (ii) react abiologically with ferrous iron outside the cell, (iii) interfere with the roles of phosphate and sulfate in iron oxidation, and (iv) nonselectively disrupt the cell envelope or membrane.

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