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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-105-11-S4.1#page=2
Last checked: 12/14/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Ables, G. W.;
Tomaso-Peterson, M.;
Vines, P.;
Standish, J. R. |
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| Author Affiliation: | Mississippi State Universiy, Mississippi State, MS |
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| Title: | Fungicide sensitivity characterization of novel ectotrophic root-infecting fungi associated with bermudagrass roots |
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| Section: | 2015 APS Annual Meeting abstracts of presentations
Other records with the "2015 APS Annual Meeting abstracts of presentations" Section
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| Meeting Info.: | Pasadena, California: August 1-5, 2015 |
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| Source: | Phytopathology. Vol. 105, No. 11S, November 2015, p. S4.2. |
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| Publishing Information: | Lancaster, Pennsylvania: The Society Intelligencer Printing Company for The American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Azoxystrobin; Chemical sensitivity; Cynodon; Disease control; Ectotrophic root-infecting fungi; Fungicide evaluation; Gaeumannomyces paulograminis; Growth studies; Pythium diseases; Root systems
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| Abstract/Contents: | "Ectotrophic root-infecting (ERI) fungi are known for causing root-rot diseases in turfgrass. Previous research at Mississippi State University identified six novel ERI pathogens associated with root-rot of bermudagrass. ERI fungi colonize the root surface with thick, dark strands of runner hyphae. Dark brittle roots, yellowing, and necrotic patches can be observed in affected bermudagrass. Infection of the root system occurs prior to the onset of symptoms, making control of root-rot diseases difficult. Penetrant fungicides applied for root-rot control include but are not limited to strobilurins, methyl benzimidazoles carbamates, and demethylation inhibitors. The objective of this study was to determine fungicide sensitivity of novel ERI pathogens to azoxystrobin (AZ) by determining the effective concentration to inhibit fifty percent of growth (EC50). Hyphal plugs of Gaeumannomyces paulograminis nov. sp. (DR1-4) were transferred to various concentrations of AZ-amended PDA. Relative growth was converted to percent inhibition and the EC50 was determined using linear regression of the probit-transformed data. The resultant EC50 value was determined to be greater than 10 ppm, indicating there may be an amino acid substitution in the target site conferring resistance to AZ." |
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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):
Ables, G. W., M. Tomaso-Peterson, P. Vines, and J. R. Standish. 2015. Fungicide sensitivity characterization of novel ectotrophic root-infecting fungi associated with bermudagrass roots. Phytopathology. 105(11S):p. S4.2. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-105-11-S4.1#page=2
Last checked: 12/14/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2219736a |
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