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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S148#page=5
Last checked: 11/30/2010
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): | Harmon, P. F.;
Kammerer, S. |
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| Author Affiliation: | University of Florida, Gainesville, FL |
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| Title: | New Rhizoctonia-like pathogens associated with diseases of warm-season turfgrasses |
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| Section: | 2010 APS Annual Meeting abstracts of special session presentations: Diseases of plants
Other records with the "2010 APS Annual Meeting abstracts of special session presentations: Diseases of plants" Section
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| Source: | Phytopathology. Vol. 100, No. 65, June supplement 2010, p. S152. |
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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: Disease identification; Disease profile; Fungal diseases; Turf recovery; Warm season turfgrasses
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| Abstract/Contents: | "Fungi with Rhizoctonia-like biology recently have been associated with a range of disease symptoms on warm-season turfgrasses in the Southeast. These fungi lack fruiting bodies, have hyphae of regular diameter with rightangle branching, and occasionally form sclerotia of various size and color on agar media. Disease symptoms range from discrete patches or rings of blighted turfgrass to diffuse canopy thinning and foliar necrosis. Timing of symptoms typically occurs during the hottest months of a year, but symptoms may become more noticeable in fall or periods of semi-dormancy. Recovery has been observed to take an extended period of time despite extensive fungicide application and even after environmental factors begin to favor turfgrass growth and recovery. Turfgrass hosts associated with these symptoms include all warm-season species suitable for amenity uses such as cultivars of bermudagrass and seashore paspalum. Isolates are not always easily obtained from symptomatic turfgrass, especially after the initial symptom development, but plating on a medium amended with a benzimidazole fungicide increases odds of isolation. Phylogenetic analysis of informative sequences indicates isolates form distinct clades related to the zea, oryzae, and circinata varieties of Waitea circinata. Additional work is needed to determine if these fungi constitute new varieties of W. circinata or if the anamorphic diversity and lack of known teleomorphs warrant designation of new Chrysorhiza spp." |
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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):
Harmon, P. F., and S. Kammerer. 2010. New Rhizoctonia-like pathogens associated with diseases of warm-season turfgrasses. Phytopathology. 100(65):p. S152. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S148#page=5
Last checked: 11/30/2010
Requires: PDF Reader |
| 
MSU catalog number: b2219736a |
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