Resistance Determinants of a Highly Arsenic-Resistant Strain of Leptospirillum ferriphilum Isolated from a Commercial Biooxidation Tank-Reference-Cited by-同舟云学术

Resistance Determinants of a Highly Arsenic-Resistant Strain of Leptospirillum ferriphilum Isolated from a Commercial Biooxidation Tank

Published:2006-03 Issue:3 Volume:72 Page:2247-2253
ISSN:0099-2240
Container-title:Applied and Environmental Microbiology
language:en
Short-container-title:Appl Environ Microbiol

Author:

Tuffin I. Marla¹,Hector Stanton B.¹,Deane Shelly M.¹,Rawlings Douglas E.¹

Affiliation:

1. Department of Microbiology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa

Abstract

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, Tn LfArs , and is related to the previously identified Tn AtcArs from Acidithiobacillus caldus isolated from the same arsenopyrite biooxidation tank as L. ferriphilum . Tn LfArs conferred resistance to arsenite and arsenate and was transpositionally active in Escherichia coli . Tn LfArs and Tn AtcArs 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 .

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Link

https://journals.asm.org/doi/pdf/10.1128/AEM.72.3.2247-2253.2006

Reference30 articles.

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