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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2007.97.7.S1#page=16
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): | Caasi, O. C.;
Walker, N. R.;
Marek, S. M.;
Mitchell, T. K. |
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| Author Affiliation: | Caasi, Walker, and Marek: Oklahoma State University, Stillwater, Oklahoma; Mitchell: North Carolina State University, Raleigh, North Carolina |
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| Title: | Infection and colonization of three turf-type bermudagrass cultivars by Ophiosphaerella herpotricha expressing green fluorescent protein |
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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. S16. |
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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: Cynodon dactylon; Spring dead spot; Ophiosphaerella herpotricha; Disease evaluation; Disease severity; Root analysis
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| Cultivar Names: | Jackpot; Tifway 419; Midlawn |
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| Abstract/Contents: | "Spring dead spot (SDS), caused by Ophiosphaerella herpotricha, is the most important disease of turf-type bermudagrass (Cynodon spp.) in the transition zone of the United States. Despite the importance of SDS only limited information is available about the host-pathogen interaction at cellular level. To evaluate the interaction, a soilless assay system was used to study root infection of the bermudagrass cultivars Jackpot, Tifway 419, and Midlawn by an Agrobacterium-transformed isolate of O. herpotricha expressing green fluorescent protein (GFP). Roots of were inoculated and incubated at 17°C for 10 days. Observations of transverse sections of infected roots revealed the fungus penetrated and colonized the epidermal and cortical cells of all three cultivars, but failed to penetrate into the stele. Fungal hyphae predominantly infected host cells intracellularly. Infection of Midlawn was limited to the outer most cortical cells and the cells did not appear necrotic. Infection of Jackpot and Tifway 419 cortical root cells was extensive and cells appeared necrotic with blackened cell walls. The cellular phenotypes appear to be consistent with disease severities observed in field trials." |
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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):
Caasi, O. C., N. R. Walker, S. M. Marek, and T. K. Mitchell. 2007. Infection and colonization of three turf-type bermudagrass cultivars by Ophiosphaerella herpotricha expressing green fluorescent protein. Phytopathology. 97(7):p. S16. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2007.97.7.S1#page=16
Last checked: 10/20/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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