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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=126
Last checked: 11/29/2010
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): | Tomaso-Peterson, M. |
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| Author Affiliation: | Mississippi State University, Mississippi State, MS |
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| Title: | Centipedegrass: A new host of Colletotrichum sublineola |
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| Section: | 2010 APS Annual Meeting abstracts of presentations
Other records with the "2010 APS Annual Meeting abstracts of presentations" Section
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| Source: | Phytopathology. Vol. 100, No. 65, June supplement 2010, p. S126. |
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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: Centipedegrass decline; Chlorosis; Disease identification; Eremochloa ophiuroides; Leaf blight
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| Abstract/Contents: | "Centipedegrass (Eremochloa ophiuroides) is rapidly becoming the home lawn turf of choice in Mississippi. It is a medium-textured, slow-growing warmseason turfgrass that requires low input, is well-adapted to a wide range of soil conditions but grows best in sandy, acidic soils of low fertility and can withstand some shade. Diseases arise when centipedegrass is over-managed with fertility and irrigation inputs and low height of cut. In spring of 2007, centipedegrass home lawns exhibited symptoms of leaf chlorosis and sheath blight, and irregular, chlorotic patches associated with thinning turf. Hyphal appressoria, diagnostic of Colletotrichum, were observed in leaf sheath tissue of diseased plants. Pure cultures of the fungus on potato dextrose agar produced grey mycelia surrounded by a bright yellow exudate; falcate conidia and globose to irregular hyphal appressoria were abundant. Phylogenetic analysis using Apn2, Mat1, Sod2 and ITS sequence data identified the fungus as a distinct lineage of C. sublineola, with centipedegrass isolates clustering separately from isolates from sorghum and johnsongrass. Kochs postulates were performed in the growth chamber by inoculating seedlings with a spore solution of C. sublineola. Chlorosis was observed 10 dpi; hyphal appressoria were observed 21 dpi. The pathogen was successfully re-isolated from diseased tissue. A new host of C. sublineola and a new disease of centipedegrass have been identified." |
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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):
Tomaso-Peterson, M. 2010. Centipedegrass: A new host of Colletotrichum sublineola. Phytopathology. 100(65):p. S126. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=126
Last checked: 11/29/2010
Requires: PDF Reader |
| 
MSU catalog number: b2219736a |
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Digitally in TIC by file name: phytp2010junpres |
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