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| DOI: | 10.1094/PD-90-1531 |
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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PD-90-1531
Last checked: 11/28/2007
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Tredway, L. P. |
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| Author Affiliation: | Department of Plant Pathology, North Carolina State University, Raleigh, North Carolina |
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| Title: | Genetic relationships among Magnaporthe poae isolates from turfgrass hosts and relative susceptibility of 'Penncross' and 'Penn A-4' creeping bentgrass |
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| Section: | Research
Other records with the "Research" Section
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| Source: | Plant Disease. Vol. 90, No. 12, December 2006, p. 1531-1538. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Relationships; Agrostis stolonifera; Magnaporthe poae; Polymerase chain reaction; Disease susceptibility; Disease identification; Host plant resistance
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| Cultivar Names: | Penncross; Penn A-4 |
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| Abstract/Contents: | "Isolates of Magnaporthe poae from turfgrass hosts were analyzed for mating type, genetic relatedness according to ITS sequences, reaction to a previously developed species-specific polymerase chain reaction (PCR) assay, and virulence on two creeping bentgrass cultivars in growth chamber experiments. Analysis of internal trascribed spacer (ITS) sequences revealed three clades, designated A, B, and C. Clade A contained isolates of both mating types from creeping bentgrass, annual bluegrass, and Kentucky bluegrass. Clade B contained only mating type 'A' isolates from annual bluegrass, whereas Clade C contained only mating type 'a' isolates from creeping bentgrass. The M. poae PCR assay failed to positively identify several North Carolina isolates from annual bluegrass and creeping bentgrass. M. poae isolates from Kentucky bluegrass were most virulent toward creeping bentgrass in growth chamber experiments. Although isolates of M. poae are not host specific, certain ITS clades may have a limited host or geopgraphical range. The improved creeping bentgrass cv. Penn A-4 was more susceptible to summer patch than cv. Penncross. Additional research is needed to develop methods for accurate diagnosis of summer patch and other patch diseases in creeping bentgrass and to determine how creeping bentgrass cultivars vary in their susceptibility root pathogens." |
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| Language: | English |
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| References: | 24 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tredway, L. P. 2006. Genetic relationships among Magnaporthe poae isolates from turfgrass hosts and relative susceptibility of 'Penncross' and 'Penn A-4' creeping bentgrass. Plant Dis. 90(12):p. 1531-1538. |
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| DOI: 10.1094/PD-90-1531 |
| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PD-90-1531
Last checked: 11/28/2007
Requires: PDF Reader |
| 
MSU catalog number: SB 599 .P95 |
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