Linked Life Data

18560832

Source:http://linkedlifedata.com/resource/pubmed/id/18560832

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-7-9
pubmed:abstractText
The isolates were identified on the basis of ars genotype characteristics as well as arsenic oxidation/reduction analysis based on the molecular detection characterization. Diversity, pH range (4.0 to 7.0), location, and ars features were assessed for four arsenic-contaminated pond sites and six arsenic tailings located in the Duck-um mine and Myoung-bong mine areas. The presence of ars genes in the genomes of each bacterial strain was evaluated using polymerase chain reaction. Batch experiment results showed that Pseudomonas putida strains OS-3 and -18 completely oxidized 1 mM of arsenite(III) to arsenate(V) within 35-40 h. In contrast, two arsenate-reducing bacteria isolated from mines, P. putida RS-4 and RS-5, were capable of growing aerobically in growth medium supplemented with up to 66.7 mM arsenate(V), which are significantly higher concentration than those tolerated by other arsenic-resistant bacteria. These results suggest that newly isolated indigenous arsenic-resistant bacteria may provide a better understanding of the molecular geomicrobiology and may be applied to the bioremediation of arsenic-contaminated mines in Korea. Ecologically, the redox potential plays an important role in arsenic toxicity and mobility in As-contaminated mine areas, as it facilitates the biogeochemical cycling activity of Pseudomonas sp. groups.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0175-7598
pubmed:author
pubmed:issnType
Print
pubmed:volume
80
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
155-65
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
The ars genotype characterization of arsenic-resistant bacteria from arsenic-contaminated gold-silver mines in the Republic of Korea.
pubmed:affiliation
Arsenic Geoenvironment Laboratory, Department of Environment Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, South Korea.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't