Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2009-6-18
pubmed:abstractText
Enterococci serve as an "indicator" of fecal contamination for recreational water quality. The vancomycin-resistant-enterococci (VRE) are emerging environmental contaminants in the surface waters. The aim ofthis study wasto develop a rapid and specific molecular beacon probe (MBP)-based real-time PCR assay for detection of vanA gene in surface waters and aquatic macrophyte. The limit of detection (LOD) of the MBP assay was 1 CFU/mL of VRE [r = 0.943; PCR efficiency = 99.7%] in 2-fold dilution format within 2.5 h and demonstrated high specificityfor environmental enterococci isolates exhibiting VanA phenotype (n=25). VRE were detected from downstream surface waters of the rivers impacted by point sources of pollution and recreational activities.The probe detected vanA gene in rootmat associated microbiota of E. crassipes (Mart) Solms. an aquatic nuisance weed, at eutrophic sites of the surface waters (ANOVA p < 0.001). In addition, the assay enabled detection of otherwise nondetectable vanA gene concentration in the upstream sites of two Indian rivers (Student's ttest p < 0.001). The MBP assay developed can be used for sensitive and rapid detection of VRE in surface waters and identification of nonpoint sources of pollution for implementation of preventive measures to protect human health.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0013-936X
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3343-8
pubmed:dateRevised
2009-9-9
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Real time PCR for the rapid detection of vanA gene in surface waters and aquatic macrophyte by molecular beacon probe.
pubmed:affiliation
Indian Institute of Toxicology Research (CSIR), P.O. Box 80, Mahatma Gandhi Marg, Lucknow-226001, U.P., India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't