Full TGIF Record # 272553
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DOI:10.1094/PHYTO.2011.101.6.S1
Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2011.101.6.S1#page=177
    Last checked: 06/20/2016
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Publication Type:
i
Report
Author(s):Tomaso-Peterson, M.
Author Affiliation:Mississippi State University, Mississippi State, MS
Title:Host specificity of Cochliobolus sp., a new pathogen of warm-season turfgrasses
Section:2011 APS-IPPC Joint Meeting abstracts of presentations
Other records with the "2011 APS-IPPC Joint Meeting abstracts of presentations" Section
Meeting Info.:Honolulu, Hawaii: August 6-10, 2011
Source:Phytopathology. Vol. 101, No. 6S, June 2011, p. S177.
Publishing Information:Lancaster, Pennsylvania: The Society Intelligencer Printing Company for The American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Bipolaris; Cultivar susceptibility; Disease severity; Disease specificity; Foliar diseases; Pathogenicity; Warm season turfgrasses
Abstract/Contents:"A new foliar disease was initially observed on bermudagrass (Cynodon dactylon) and zoysiagrass (Zoysia japonica) putting greens and fairways at golf courses in the Houston, Texas area in 2007. Disease symptoms on individual leaves exhibited prominent, black, elliptical lesions along the leaf margins. Symptoms on the closely mowed turfgrass appeared as dark, brownish-black spots 5-cm in diameter. Isolates of Cochliobolus sp. were consistently recovered from field samples and Kochs postulates were conducted to confirm pathogenicity. A greenhouse study was conducted to determine the host range of these isolates. Surface disinfested seed of bermudagrass, zoysiagrass, centipedegrass (Eremochloa ophiuroides), and seashore paspalum (Paspalum vaginatum) were sown into Cochliobolus-infested soil contained in 5-cm pots. St. Augustinegrass (Stanotaphrum secundatum), propagated from stolons, was also tested as a possible host. Disease severity was greatest in zoysiagrass which appeared scorched or desiccated. Leaf symptoms consisted of elliptical lesions with gray, necrotic centers and black margins. Bermudagrass and St. Augustinegrass developed foliar lesions but severity was low. Centipedegrass and seashore paspalum only had a reduction in seedling establishment. Cochliobolus sp. was reisolated from all hosts except seashore paspalum. The fungus did not cause root discoloration in any of the hosts indicating that it is only pathogenic on foliar tissues of select warm-season turfgrasses."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tomaso-Peterson, M. 2011. Host specificity of Cochliobolus sp., a new pathogen of warm-season turfgrasses. Phytopathology. 101(6S):p. S177.
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DOI: 10.1094/PHYTO.2011.101.6.S1
Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2011.101.6.S1#page=177
    Last checked: 06/20/2016
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: b2219736a
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