Characterization of the extremely arsenic-resistant Brevibacterium linens strain AE038-8 isolated from contaminated groundwater in Tucumán, Argentina
International Biodeterioration and Biodegradation
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Abstract
Brevibacterium linens AE038-8, isolated from As-contaminated groundwater in Tucumán (Argentina), is highly resistant to arsenic oxyanions, being able to tolerate up to 1 M As(V) and 75 mM As(III) in a complex medium. Strain AE038-8 was also able to reduce As(V) to As(III) when grown in complex medium but paradoxically it could not do this in a defined minimal medium with sodium acetate and ammonium sulfate as carbon and nitrogen sources, respectively. No oxidation of As(III) to As(V) was observed under any conditions. Three copies of the ars operon comprising arsenic resistance genes were found on B. linens AE038-8 genome. In addition to the well known arsC, ACR3 andarsR, two copies of the arsO gene of unknown function were detected.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Characterization of the extremely arsenic-resistant Brevibacterium linens strain AE038-8 isolated from contaminated groundwater in Tucumán, Argentina |
| Series title | International Biodeterioration and Biodegradation |
| DOI | 10.1016/j.ibiod.2015.11.022 |
| Volume | 107 |
| Year Published | 2015 |
| Language | English |
| Publisher | Elsevier Applied Science |
| Publisher location | Barking, Essex, England |
| Contributing office(s) | National Research Program - Western Branch |
| Description | 7 p. |
| First page | 147 |
| Last page | 153 |
| Country | Argentina |
| State | Tucumán |
| City | Los Pereyra |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |