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| Web URL(s): | http://www.apsnet.org/publications/PlantDisease/BackIssues/Documents/1992Abstracts/PD_76_1077E.htm
Last checked: 10/13/2015 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Conway, K. E.;
Taliaferro, C. M.;
Shelby, R. A. |
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| Author Affiliation: | Conway: Department of Plant Pathology; Taliaferro: Department of Agronomy, Oklahoma State University, Stillwater, Oklahoma; Shelby: Department of Plant Pathology, Auburn University, Auburn, Alabama |
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| Title: | First report on formation of sclerotia of Claviceps purpurea on bermudagrass (Cynodon dactylon) |
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| Source: | Plant Disease. Vol. 76, No. 10, October 1992, p. 1077. |
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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; Sclerotium; Claviceps purpurea
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| Abstract/Contents: | "The formation of honeydew on bermudagrass (Cynodon datcylon (L.) Pers.) by Claviceps purpurea (Fr.:Fr.) Tul. has been reported (1) and its anamorph has been isolated from bermudagrass, but sclerotia have never been reported on that host. Cultures from bermudagrass produce fluorescent alkaloid toxins in vitro and have been implicated in the production of cattle tremors, but such toxins have not been detected from the honeydew stage. Infection of bermudagrass by the honeydew stage of C. purpurea was severe during the fall of 1991 throughout Oklahoma. Sclerotia were found on two breeding lines and two plant introductions of bermudagrass near Stillwater, Oklahoma, during October. Sclerotia were produced in 20-50% of the seeds per head of line BERPC 91-6 but in <1-5% of those of clone 9945 and the two plant introductions. Samples of infected seed heads with sclerotia were extracted and analyzed by high-performance liquid chromatography. Two toxins, ergotamine and an unknown substance, were indicated by fluorescence detection, a technique that denotes only fluorescent alkaloids, mainly ergopeptins, and not clavines (2). The presence of sclerotia with toxic alkaloids in honeydewed bermudagrass hay could pose a health threat to cattle." |
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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):
Conway, K. E., C. M. Taliaferro, and R. A. Shelby. 1992. First report on formation of sclerotia of Claviceps purpurea on bermudagrass (Cynodon dactylon). Plant Dis. 76(10):p. 1077. |
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| Web URL(s):
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Last checked: 10/13/2015 |
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MSU catalog number: SB 599 .P95 |
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