Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2006-10-30
pubmed:abstractText
Net blotch is a barley foliar disease caused by two forms of Pyrenophora teres: Pyrenophora teres f. teres (PTT) and Pyrenophora teres f. maculata (PTM). To monitor and quantify their occurrence during the growing season, diagnostic system based on real-time PCR was developed. TaqMan MGB (Minor Groove Binder) primers and probes were designed that showed high specificity for each of the two forms of P. teres. As a host plant internal standard, TaqMan MGB primers and probe based on RacB gene sequence were designed. The method was optimised on pure fungal DNA and on plasmid standard dilutions. Quantification was accomplished by comparing Ct values of unknown samples with those obtained from plasmid standard dilutions. The assay detects down to five gene copies per reaction. It is able to produce reliable quantitative data over a range of six orders of magnitude. The developed assay was used to differentiate and quantify both forms of P. teres in infected barley leaves. Correlation R(2)=0.52 was obtained between the Ct values and size of symptoms areas in early stage of infection. Application of the TaqMan MGB technology to leaf samples collected in 20 barley varieties in the region Kromeriz during the growing season of 2003 and 2004 revealed that P. teres f. teres predominated in these 2 years. The developed method is an important tool to quantify and monitor the dynamics of the two forms of P. teres during the growing season.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0167-7012
pubmed:author
pubmed:issnType
Print
pubmed:volume
67
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
446-55
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Quantification of Pyrenophora teres in infected barley leaves using real-time PCR.
pubmed:affiliation
Research Institute of Crop Production, Drnovska 507, 16106 Prague 6 Ruzyne, Czech Republic. leisova@vurv.cz <leisova@vurv.cz>
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't