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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2007.97.7.S1#page=56
Last checked: 10/20/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Kern, J.;
Uddin, W.;
Wong, F. |
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| Author Affiliation: | Kern and Uddin: Penn State University, University Park, Pennsylvania; Wong: University of California, Riverside, California |
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| Title: | Cross-infectivity of Magnaporthe oryzae isolates causing gray leaf spot in perennial ryegrass and kikuyugrass truf [turf] |
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| Meeting Info.: | APS Annual Meeting, San Diego, California: July 28 - August 1, 2007 |
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| Source: | Phytopathology. Vol. 97, No. 7, July Supplement 2007, p. S56. |
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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: Pyricularia grisea; Gray leaf spot; Lolium perenne; Pennisetum clandestinum; Infectivity; Disease development; Disease severity
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| Abstract/Contents: | "Magnaporthe oryzae is a serious pathogen of perennial ryegrass (Lolium perenne) (PRG) turf and kikuyugrass (Pennisetum clandestinum) (KKG) causing gray leaf spot. Cross-infectivity of isolates of M. oryzae from the two grass species was evaluated. The experiment was arranged as a randomized complete block design with six replications of treatments that included six isolates of M. oryzae (3 from each host). Six-week-old perennial ryegrass and kikuyugrass plants were inoculated with isolates of M. oryzae (104 conidia/ml water) using an atomizer. The plants were incubated for 10 days at 30°C, 96-100% relative humidity, and 12-hour light/dark period in a controlled environment chamber following the inoculation. Gray leaf spot developed in PRG and KKG inoculated with each of the six isolates three to five days after inoculation. There were significant differences in virulence among the M. oryzae isolates. Most PRG isolates were significantly more virulent on both grass hosts than the KKG isolates. This study shows that isolates of M. oryzae from PRG and KKG cross-infects the other host; therefore, the presence of one grass host in fairways or roughs could serve as additional source of inoculum for gray leaf spot epidemic development in the other grass host in golf courses. |
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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):
Kern, J., W. Uddin, and F. Wong. 2007. Cross-infectivity of Magnaporthe oryzae isolates causing gray leaf spot in perennial ryegrass and kikuyugrass truf [turf]. Phytopathology. 97(7):p. S56. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2007.97.7.S1#page=56
Last checked: 10/20/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2219736a |
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