Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2011-3-8
pubmed:abstractText
Real-time PCR and PCR-denaturing gradient gel electrophoresis (DGGE) approaches that specifically target the Variovorax 16S rRNA gene were developed to estimate the number and diversity of Variovorax in environmental ecosystems. PCR primers suitable for both methods were selected as such that the enclosed sequence showed maximum polymorphism. PCR specificity was maximized by combining PCR with a targeted endonuclease treatment of template DNA to eliminate 16S rRNA genes of the closely related Acidovorax. DGGE allowed the grouping of PCR amplicons according to the phylogenetic grouping within the genus Variovorax. The toolbox was used to assess the Variovorax community dynamics in agricultural soil microcosms (SMs) exposed to the phenylurea herbicide linuron. Exposure to linuron resulted in an increased abundance within the Variovorax community of a subgroup previously linked to linuron degradation through cultivation-dependent isolation. SMs that were treated only once with linuron reverted to the initial community composition 70 days after linuron exposure. In contrast, SMs irrigated with linuron on a long-term base showed a significant increase in Variovorax number after 70 days. Our data support the hypothesis that the genus Variovorax is involved in linuron degradation in linuron-treated agricultural soils.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1574-6941
pubmed:author
pubmed:copyrightInfo
© 2011 Federation of European Microbiological Societies. Published by Blackwell Publishing Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
14-25
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
A molecular toolbox to estimate the number and diversity of Variovorax in the environment: application in soils treated with the phenylurea herbicide linuron.
pubmed:affiliation
Division of Soil and Water Management, Katholieke Universiteit Leuven, Leuven, Belgium. karolien.bers@ees.kuleuven.be
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't