Resistance determinants of a highly arsenic-resistant strain of Leptospirillum ferriphilum isolated from a commercial biooxidation tank
Date
2006
Authors
Tuffin I.M.
Hector S.B.
Deane S.M.
Rawlings D.E.
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Journal ISSN
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Abstract
Two sets of arsenic resistance genes were isolated from the highly arsenic-resistant Leptospirillum ferriphilum Fairview strain. One set is located on a transposon, TnLfArs, and is related to the previously identified TnAtcArs from Acidithiobacillus caldus isolated from the same arsenopyrite biooxidation tank as L. ferriphilum. TnLfArs conferred resistance to arsenite and arsenate and was transpositionally active in Escherichia coli. TnLfArs and TnAtcArs were sufficiently different for them not to have been transferred from one type of bacterium to the other in the biooxidation tank. The second set of arsenic resistance genes conferred very low levels of resistance in E. coli and appeared to be poorly expressed in both L. ferriphilum and E. coli. Copyright © 2006, American Society for Microbiology. All Rights Reserved.
Description
Keywords
Arsenic, Bacteria, Biochemistry, Escherichia coli, Microbiology, Pyrites, Acidithiobacillus caldus, Arsenic resistance genes, Biooxidation tank, Leptospirillum ferriphilum, Transposon, Genes, arsenic, arsenic acid, arsenic trioxide, arsenic, Acidithiobacillus, Acidithiobacillus caldus, antibiotic resistance, article, bacterial strain, Escherichia coli, Leptospira, Leptospirillum ferriphilum, nonhuman, nucleotide sequence, oxidation, tank, TnAtcArs gene, TNLfArs gene, transposon, Arsenates, Arsenicals, Bacteria, Bacterial Proteins, Bioreactors, DNA Transposable Elements, Drug Resistance, Bacterial, Escherichia coli, Gene Expression Regulation, Bacterial, Gold, Iron Compounds, Mining, Molecular Sequence Data, Oxidation-Reduction, Sequence Analysis, DNA, Sulfides, Acidithiobacillus, Acidithiobacillus caldus, Bacteria (microorganisms), Escherichia coli, Leptospira, Leptospirillum ferriphilum
Citation
Applied and Environmental Microbiology
72
3
72
3