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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=13
Last checked: 11/19/2010
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Beirn, L. A.;
Clarke, B. B.;
Crouch, J. |
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| Author Affiliation: | Rutgers University, New Brunswick, NJ |
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| Title: | Molecular analysis of turfgrass rusts reveals the widespread distribution of Puccinia coronata as a pathogen of Kentucky bluegrass |
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| Section: | 2010 APS Annual Meeting abstracts of presentations
Other records with the "2010 APS Annual Meeting abstracts of presentations" Section
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| Source: | Phytopathology. Vol. 100, No. 65, June supplement 2010, p. S13. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cultivar susceptibility; Disease identification; Disease profile; Phylogeny; Poa pratensis; Rusts
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| Abstract/Contents: | "Rust is a common disease of cultivated turfgrasses that can cause extensive damage in heavily infested areas. Over the past ten years, increased susceptibility has been observed among several Kentucky bluegrass (Poa pratensis L.) cultivars. To test whether increased disease in previously resistant cultivars could be the result of new rust species and/or shifts in rust race composition, wide-scale sampling of symptomatic grasses was conducted to identify the primary rust species associated with turfgrass hosts. Phylogenetic analysis of rDNA ITS sequences identified Puccinia coronata, P. graminis, and P. striiformis from the tissue sampled. P. coronata was the most prevalent species (68% of the samples) followed by P. graminis (27%) and P. striiformis (5%). These species frequencies contradict what has typically been reported by turfgrass breeders in the field based on phenotype and disease symptoms. Not only was P. coronata found to be the predominate species in the samples, but was also routinely found in association with Kentucky bluegrass, indicating that the most common traits used to identify these pathogens in the field - uredium/spore pigmentation and host plant association - are inadequate to accurately identify rust species. We used the ITS dataset to develop a real time PCR protocol as a tool for the accurate discrimination of these rusts from turf. AFLP analysis is currently in progress to evaluate genetic diversity in turfgrass rust populations." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Beirn, L. A., B. B. Clarke, and J. Crouch. 2010. Molecular analysis of turfgrass rusts reveals the widespread distribution of Puccinia coronata as a pathogen of Kentucky bluegrass. Phytopathology. 100(65):p. S13. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=13
Last checked: 11/19/2010
Requires: PDF Reader |
| 
MSU catalog number: b2219736a |
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Digitally in TIC by file name: phytp2010junpres |
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