Evaluation of Tannic and Fulvic Acids as Inhibitorsof Cell Growth and Iron and Sulfur Oxidation in Thiobacillus ferrooxidans and Thiobacillus thiooxidans.

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.

Download Full-text

Ferrous Iron and Sulfur Oxidation and Ferric Iron Reduction Activities of Thiobacillus ferrooxidans Are Affected by Growth on Ferrous Iron, Sulfur, or a Sulfide Ore

Applied and Environmental Microbiology ◽

10.1128/aem.56.6.1620-1626.1990 ◽

1990 ◽

Vol 56 (6) ◽

pp. 1620-1626 ◽

Cited By ~ 46

Author(s):

Isamu Suzuki ◽

Travis L. Takeuchi ◽

Trin D. Yuthasastrakosol ◽

Jae Key Oh

Keyword(s):

Ferrous Iron ◽

Iron Reduction ◽

Ferric Iron ◽

Thiobacillus Ferrooxidans ◽

Sulfur Oxidation ◽

Iron Sulfur ◽

Sulfide Ore ◽

Iron And Sulfur Oxidation

Download Full-text

Insights into the pathways of iron- and sulfur-oxidation, and biofilm formation from the chemolithotrophic acidophile Acidithiobacillus ferrivorans CF27

Research in Microbiology ◽

10.1016/j.resmic.2014.08.002 ◽

2014 ◽

Vol 165 (9) ◽

pp. 753-760 ◽

Cited By ~ 22

Author(s):

Emmanuel Talla ◽

Sabrina Hedrich ◽

Sophie Mangenot ◽

Boyang Ji ◽

D. Barrie Johnson ◽

...

Keyword(s):

Biofilm Formation ◽

Sulfur Oxidation ◽

Iron And Sulfur Oxidation

Download Full-text

Leaching behavior of a chalcopyrite concentrate in the coexistent system of Thiobacillus thiooxidans with Thiobacillus ferrooxidans, and phospholipid as extracellular substances.

Shigen-to-Sozai ◽

10.2473/shigentosozai.106.611 ◽

1990 ◽

Vol 106 (10) ◽

pp. 611-616

Author(s):

Takakatsu TAKAMORI ◽

Takuya YAMAMOTO ◽

Keiko SASAKI ◽

Masami TSUNEKAWA ◽

Tsuyoshi HIRAJIMA

Keyword(s):

Thiobacillus Ferrooxidans ◽

Leaching Behavior ◽

Thiobacillus Thiooxidans ◽

Chalcopyrite Concentrate ◽

Extracellular Substances

Download Full-text

Mechanism and Kinetics of Elemental Sulfur Oxidation by Thiobacillus Thiooxidans in Batch Fermenter

Environmental Technology ◽

10.1080/09593332008616888 ◽

1999 ◽

Vol 20 (9) ◽

pp. 933-942 ◽

Cited By ~ 10

Author(s):

Y. C. Cheng ◽

R. Y. Peng ◽

J. C. C. Su ◽

D. Y. Lo

Keyword(s):

Elemental Sulfur ◽

Sulfur Oxidation ◽

Thiobacillus Thiooxidans ◽

Batch Fermenter ◽

Mechanism And Kinetics ◽

Kinetics Of ◽

Elemental Sulfur Oxidation

Download Full-text

Effect of nutrients and elemental sulfur particle size on elemental sulfur oxidation and the growth of Thiobacillus thiooxidans

Australian Journal of Agricultural Research ◽

10.1071/a95055 ◽

1997 ◽

Vol 48 (4) ◽

pp. 497 ◽

Cited By ~ 20

Author(s):

Sholeh ◽

Rod D. B. Lefroy ◽

Graeme J. Blair

Keyword(s):

Particle Size ◽

Elemental Sulfur ◽

Sulfur Oxidation ◽

Thiobacillus Thiooxidans ◽

Oxidation Rates ◽

South Wales ◽

Incubation Experiments ◽

P Rate ◽

Oxidation Model ◽

S Oxidation

Elemental sulfur (S) has many attractions as a fertiliser but it must be oxidised to sulfate before it is plant available. Two laboratory incubation experiments with a high S sorbing basaltic soil (Haplohumult) from Walcha, New South Wales, are reported here. The first experiment was conducted to study the effect of ? P and other nutrients on the oxidation of elemental S and the growth of Thiobacillus thiooxidans. The second experiment studied the effect of phosphorus (P) rate, elemental S particle size, and elemental S form on the oxidation of elemental S at different times. There were significant differences between treatments in the percentage and amount of elemental S oxidised, with the lowest oxidation occurring during the 6-week incubation in the P treatment, which represented 1�8% of the applied S compared with 16�0% when all nutrients were supplied. There was a significant linear relationship between T. thiooxidans population at the end of the incubation period and the amount of elemental S oxidised. The oxidation of elemental S was higher when fine (50?150 �m) particle size elemental S was used, compared with coarse (150?250 �m) elemental S. There was no clear difference in oxidation rate between ground and recrystallised elemental S. The S oxidation rates recorded in these experiments were compared with those predicted by an S oxidation model and found to be in close agreement.

Download Full-text