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

被引：65

作者：

Escalante, G. ^{[1
]}

Campos, V. L. ^{[1
,4
]}

Valenzuela, C. ^{[1
]}

Yanez, J. ^{[2
]}

Zaror, C. ^{[3
]}

Mondaca, M. A. ^{[1
]}

机构：

[1] Univ Concepcion, Dept Microbiol, Concepcion, Chile

[2] Univ Concepcion, Chem Inorgan & Analyt Dept, Concepcion, Chile

[3] Univ Concepcion, Dept Chem Engn, Concepcion, Chile

[4] Univ Concepcion, Ctr Environm Sci, EULA CHILE, Concepcion, Chile

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2009年 / 83卷 / 05期

关键词：

ArsC and aox genes; Arsenic-resistant bacteria; Arsenic-contaminated; Reducing and oxidizing bacteria; GENES; OXIDATION; OXIDASE; CREEK;

D O I：

10.1007/s00128-009-9868-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：657 / 661

页数：5

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