| |
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 |
Publication Type:
| 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. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=272553 |
| If there are problems with this record, send us feedback about record 272553. |
| Choices for finding the above item: |
| 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 |
| MSU catalog number: b2219736a |
| Find from within TIC: Digitally in TIC by file name: phytp2011junpres |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |