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2 edition of Metal resistance in Thiobacillus ferrooxidans found in the catalog.

Metal resistance in Thiobacillus ferrooxidans

Yvonne Reich

Metal resistance in Thiobacillus ferrooxidans

by Yvonne Reich

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  • 23 Currently reading

Published by Laurentian University, Department of Psychology in Sudbury, Ont .
Written in English


Edition Notes

Statementpresented by Yvonne Reich.
The Physical Object
Paginationiii, 18 l.
Number of Pages18
ID Numbers
Open LibraryOL20636416M

  Acidithiobacillus ferrooxidans is an important microorganism used in biomining operations for metal recovery. Whole-genomic diversity analysis based on the oligonucleotide microarray was used to analyze the gene content of 12 strains of A. ferrooxidans purified from various mining areas in China. Among the open reading frames (ORFs) on the slides, ORFs were absent in at .   A. ferrooxidans is a Gram negative rod shaped bacterium that is commonly found in deep caves or acid mine drainage, such as coal waste (10, 11, 12). These acidophilic bacteria thrive in optimal pH level of – where they convert insoluble metals to their soluble state.

Chapter 7 Genetic Mechanisms in Metal-Microbe Interactions I Introduction II Metal Ion Resistance, Accumulation, and Methylation III Prospects for Genetic Improvement of Thiobacillus ferrooxidans IV References Chapter 8 Structure-Function Relationships of Thiobacillus Relative to Ferrous Iron and Sulfide Oxidations I Introduction. a minor role in DNA repair in T. ferrooxidans. Thiobacillus ferrooxidans is an acidophilic chemolithoau-totrophic bacterium that obtains its energy from oxidation of ferrous iron (Fe21) to ferric iron (Fe31) or of reduced sulfur compounds to sulfuric acid. Its widespread application in min-eral leaching and metal remediation has made it an.

  34,, articles and books. Periodicals Literature. Shaikh Shafikh and Avinash Ade Thiobacillus ferrooxidans: contribution of cells for metal extraction. and Malik A. Biosorption of nickel and cadmium by metal resistant bacterial isolates from agricultural soil irrigated with industrial wastewater. Biores Techno, ;   Acidithiobacillus ferrooxidans is by far the most widely studied of all extremely acidophilic prokaryotes. While it is found in many types of natural low-pH environments in a variety of geoclimatic contexts, it has been more widely cited in anthropogenic (mostly mine-impacted) environments. It is responsible for accelerating the oxidative dissolution of sulfide minerals, causing .


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Metal resistance in Thiobacillus ferrooxidans by Yvonne Reich Download PDF EPUB FB2

Figure examples of acidophilic microorganisms that participate in metal extraction during biomining: (a) A. ferrooxidans cells attached to a sulfur particle; (b) a biofilm, possibly a monolayer of A.

ferrooxidans cells growing on the surface of an elemental sulfur prill; (c) a Leptospirillum-like microorganism isolated from a Chilean mining operation; and (d) A. ferrooxidans colonies.

Leduc LG, Ferroni GD & Trevors JT () Resistance to heavy metals in different strains of Thiobacillus ferrooxidans. World J. Microbiol. World J.

Microbiol. Biotechnol. Cited by: Bhupinder Dhir, in Transgenic Plant Technology for Remediation of Toxic Metals and Metalloids, Other Approaches for Remediation of Hg.

Enzymes such as cytochrome c oxidase from iron (Fe 2+)-oxidizing Hg-sensitive acidophilic bacterium Thiobacillus ferrooxidans also play a role in reduction of Hg 2+ (Iwahori et al., ).Mercury sensitive dissimilatory metal reducing bacteria. Shiratori T, Inoue C, Sugawara K, Kusano T, Kitagawa Y.

Cloning and expression of Thiobacillus ferrooxidans mercury ion resistance genes in Escherichia coli. J Bacteriol. Jun; (6)– [PMC free article] Silver S, Phung LT. Bacterial heavy metal resistance: new surprises. Annu Rev Microbiol. ; –Cited by: Ten different isolates of Thiobacillus ferrooxidans were studied with regard to their degree of resistance to the metals copper, nickel, uranium, and thorium.

Inhibitory concentrations for a particular metal were those which showed a statistically-significant decrease in the amount of ferrous iron oxidized by the bacterium compared to an Cited by: Plasmid-encoded resistance may provide organisms with Metal resistance in Thiobacillus ferrooxidans book and bypass mechanisms, enzymes which catalyze the transformation of metals to volatile forms, or make the bacterial cell wall impermeable to the metal(s).

A problem still remains in actually defining the concentrations that distinguish metal-resistant from metal-sensitive bacteria.

Heavy metals removal by bioleaching using Thiobacillus Ferrooxidans Received for publication July, 24, Accepted July, 26, of metal in soil, the amount of metal in the natural state soil at the end of treatment by bioleaching and the considered to be resistant to the biological processes that occur in soil (M.

DUA. Acidithiobacillus ferrooxidans (formerly Thiobacillus ferrooxidans) is a chemolithoautotrophic bacterium that obtains its energy from the oxidation of ferrous iron, elemental sulfur, or partially oxidized sulfur compounds (19, 24).This ability makes it of great industrial importance due to its application in biomining to recover metals such as copper, gold, and uranium (19, 23).

Explore the latest full-text research PDFs, articles, conference papers, preprints and more on MARINE BIODIVERSITY. Find methods information, sources, references or conduct a literature review on.

Thiobacillus ferrooxidans, grown on either ferrous sulfate, lead sulfide concentrate, or chalcopyrite concentrate demonstrated oxygen uptake and CO 2 fixation in the presence of ferrous sulfate, chalcopyrite ore, pyrite ore, and red antimony trisulfide.

Lead suifide-grown cells could oxidize lead sulfide ore and galena, using the energy obtained for CO 2 fixation. Abstract. The iron-oxidizing bacterium Thiobacillus ferrooxidans is the most important microorganism in mineral leaching.

It plays the dominant role in bioextractive processes because of its ability to oxidize both iron and reduced sulfur compounds. Gene Synthesis, High-Level Expression, and Mutagenesis of Thiobacillus ferrooxidans Rusticyanin: His 85 Is a Ligand to the Blue Copper Center.

Biochemistry34 (20), Acidothiobacillus ferrooxidans, Thiobacillus thiooxidans, Thiobacillus ferrooxidans and Thiobacillus thioparus.

These bacteria were growth in solutions after they were isolated from natural environment (J. WANG & al. [5], GOMEZ and BOSECKER [6]). The type of bacteria will influence the bioleaching yield. The experiments performed by Gomez and.

MOLECULAR GENETICS OF T. FERROOXIDANS 41 same genus designation, are frequently mistaken to be closely related to T. ferrooxidans. The 16S rRNAsequence data and physiological characteristics ofthese "neutrophilic thiobacilli" are so different fromtypical acidophilic, obligately autotrophic T.

ferrooxidans and T. thiooxidans isolates that they should not be considered to be members of the. Whole Genome Sequence of Acidithiobacillus ferrooxidans: Metabolic Reconstruction, Heavy Metal Resistance and Other Characteristics; pp. – Liu Z, Guiliani N, Appia-Ayme C, Borne F, Ratouchniak J, Bonnefoy V.

Construction and characterization of a recA mutant of Thiobacillus ferrooxidans by marker exchange mutagenesis. Acidithiobacillus ferrooxidans from ores. Ferric ions oxidize U02 to U+. Acidi­ thiobacillus ferrooxidans is a gram nega­ tive, acidophilic, chemolithotrophic bacte­ rium that can fix atmospheric carbon di­ oxide, obtaining its energy through the oxi­ dation of ferrous iron as well as from the.

Acidithiobacillus ferrooxidans YNTRS (A. ferrooxidans) is a chemolithoautotrophic aerobic bacterium isolated from Tengchong hot springs, Yunnan Province, China, with a broad growth pH range of – This study reports the genome sequence of this strain and the information of genes related to the adaptation of diverse stresses and the oxidation of ferrous iron and sulfur.

Results. Abstract Ore samples from sulfidic mines in Romania were analyzed quantitatively for the occurrence of the ferrous‐ion‐oxidizing bacteria Thiobacillus ferrooxidans and Leptospirillum ferrooxidans. Thiobacillus ferrooxidans was detected regularly, whereas L. ferrooxidans occurred only at sites with a temperature above 20°C and with sufficient humidity.

Electrochemical measurement and surface analysis methods were employed to investigate the Microbiologically Influenced Corrosion (MIC) influenced by Thiobacillus ferrooxidans biofilm.

Electrochemical impedance spectroscopy (EIS) results indicated that the impedance value of steel A3 after 21 days of immersion in sterile solution was much higher than that of T.f solution. Studies on the growth of Thiobacillus ferrooxidans. Toxicity of uranium to growing cultures and tolerance conferred by mutation, other metal cations and EDTA.

The chromosomal arsenic resistance genes of Thiobacillus ferrooxidans have an unusual arrangement and confer increased arsenic and antimony resistance to Escherichia coli. Appl. Environ. Microbiol. – Abstract. Two arsenic-resistant plasmids were constructed and introduced into Thiobacillus ferrooxidans strains by conjugation.

The plasmids with the replicon of wide-host-range plasmid RSF were stable in T. ferrooxidans. The arsenic resistance genes originating from the heterotroph were expressed in this obligately autotrophic bacterium, but the promoter derived from T. ferrooxidans.Pyrite single‐crystal cubes were cut, polished.

and x‐rayed to produce orientations of (), (), (), and (). These crystallographically developed surfaces then were prepared to expose an area of 1 cm 2, and the remainder of the crystal was coated with an acid‐resistant silicone ls with representative orientations then were leached in ferric sulfate solutions.