Linked Life Data

19718679

Source:http://linkedlifedata.com/resource/pubmed/id/19718679

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2009-9-2
pubmed:abstractText
Arsenic is naturally present in rocks, soil, water, and air. It is released to the environment by natural processes such as volcanic eruptions, and rock erosion. In this study, two arsenite-oxidizing strains were isolated from volcanic rocks obtained from the Camarones Valley, Atacama Desert, Chile. Strains were isolated from biofilms and identified by 16s ARNr sequences analysis. aox genes were detected by RT-PCR. The arsenic oxidation ability was assayed with silver nitrate and HPLC-HG-AAS. Four arsenite-resistant strains were isolated (8 mM). RT-PCR analysis showed the presence of aox genes in UC-2 and UC-6 strains. In addition, UC-2 and UC-6 strains were able to oxidize 90 and 95% arsenite present in the medium to arsenate, at a rate of 9.3 and 9.8 microg ml(-1) h(-1 )respectively. Bicarbonate (HCO(3) (-)) was used as unique carbon source. Finally, the significative oxidation capacity shown by both strains opens the way to further studies aimed at implementing biological systems to treat arsenic rich wastewater.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1521-4028
pubmed:author
pubmed:copyrightInfo
Copyright 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
pubmed:issnType
Electronic
pubmed:volume
49 Suppl 1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
S93-7
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Isolation of arsenite-oxidizing bacteria from a natural biofilm associated to volcanic rocks of Atacama Desert, Chile.
pubmed:affiliation
Microbiology Department, University of Concepción Chile. vcampos@udec.cl
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't