Arsenic Resistant Bacteria Isolated from Arsenic Contaminated River in the Atacama Desert (Chile)

Escalante, G; Campos, VL; Valenzuela C.; Yáñez J.; Zaror C.; Mondaca MA

Abstract

In this study, arsenic resistant bacteria were isolated from sediments of an arsenic contaminated river. Arsenic tolerance of bacteria isolated was carried out by serial dilution on agar plate. Redox abilities were investigated using KMnO4. arsC and aox genes were detected by PCR and RT-PCR, respectively. Bacterial populations were identified by RapID system. Forty nine bacterial strains were isolated, of these, 55 % corresponded to the reducing bacteria, 4% to oxidizing bacteria, 8% presented both activities and in 33% of the bacteria none activity was detected. arsC gene was detected in 11 strains and aox genes were not detected. The activity of arsenic transforming microorganisms in river sediment has significant implications for the behavior of the metalloid. © 2009 Springer Science+Business Media, LLC.

Más información

Título según WOS: Arsenic Resistant Bacteria Isolated from Arsenic Contaminated River in the Atacama Desert (Chile)
Título según SCOPUS: Arsenic resistant bacteria isolated from arsenic contaminated river in the Atacama Desert (Chile)
Título de la Revista: BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volumen: 83
Número: 5
Editorial: Springer Verlag
Fecha de publicación: 2009
Página de inicio: 657
Página final: 661
Idioma: English
URL: http://link.springer.com/10.1007/s00128-009-9868-4
DOI:

10.1007/s00128-009-9868-4

Notas: ISI, SCOPUS