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| Web URL(s): | https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/127786 Last checked: 09/07/2023 |
| Publication Type: | Report |
| Content Type: | Abstract or Summary only |
| Author(s): | Vines, Phillip L.; Genova, Kyle M.; Groben, Glen; Rountree, Marcus; Meyer, William A.; Clarke, Bruce B. |
| Author Affiliation: | Department of Plant Biology, Rutgers University, New Brunswick, NJ |
| Title: | Comparison of Magnaporthiopsis spp. with respect to virulence on hard fescue and Kentucky bluegrass |
| Section: | Turfgrass pest management poster: Diseases, insects, weeds (includes student competition) Other records with the "Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)" Section C05 turfgrass science Other records with the "C05 turfgrass science" Section |
| Meeting Info.: | San Antonio, Texas: November 9-13, 2020 |
| Source: | ASA, CSSA, SSSA International Annual Meeting. November 2020, p. 127786. |
| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
| # of Pages: | 1 |
| Abstract/Contents: | "Summer patch is a destructive root disease of hard fescue (Festuca brevipila) and Kentucky bluegrass (Poa pratensis) cool-season turf. Magnaporthiopsis poae is a well-documented causal organism of summer patch disease, but in recent years, two new fungal species, M. cynodontis and M. meyeri-festucae have been identified from diseased roots of hard fescue and Kentucky bluegrass turf exhibiting typical summer patch symptoms. The objective of this study was to investigate the disease virulence among isolates of M. cynodontis, M. meyeri-festucae, and M. poae to better understand which of the pathogens, and more specifically, which isolates affect hard fescue and Kentucky bluegrass turf the most. In this study, four isolates of M. cynodontis, eleven isolates of M. meyeri-festucae, and eleven isolates of M. poae were used. Beacon hard fescue and A16-20 Kentucky bluegrass were seeded into conetainers inoculated with the fungi and maintained in cool and warm environments. Data was collected weekly and summarized as disease severity index for each conetainer throughout the study. Disease severity index data was used to generate area under the disease progress curve values, which were subjected to analysis of variance. Our results indicate that M. poae is more virulent to both hard fescue and Kentucky bluegrass than M. cynodontis or M. meyeri-festucae. M. poae isolates 37S, BalB 24, C3, FFSP1 2, HF2 2, Lisa9, OakA 5, P5, StdA 7, and WilA 3 and M. cynodontis isolate d29740 4 significantly affected mean AUDPC in this study. Altogether, these findings suggest that M. poae contributes the most to summer patch disease in hard fescue and Kentucky bluegrass, but these findings also underscore the activity of M. cynodontis and M. meyeri-festucae on these plants as well. Future studies should consider the potential synergistic relationship among these fungi and investigate the impact that multiple species would have, together, on these host plant species." |
| Language: | English |
| References: | 0 |
| Note: | This item is an abstract only! Pictures, color Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Vines, P. L., K. M. Genova, G. Groben, M. Rountree, W. A. Meyer, and B. B. Clarke. 2020. Comparison of Magnaporthiopsis spp. with respect to virulence on hard fescue and Kentucky bluegrass. Agron. Abr. p. 127786. |
| Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/331624 |
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| Web URL(s) : | https://scisoc.confex.com/scisoc/2020am/meetingapp.cgi/Paper/127786 Last checked: 09/07/2023 |
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