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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Mycotoxin Prevention and Applied Microbiology Research » Research » Publications at this Location » Publication #361974

Research Project: Novel Methods for Controlling Trichothecene Contamination of Grain and Improving the Climate Resilience of Food Safety and Security Programs

Location: Mycotoxin Prevention and Applied Microbiology Research

Title: Fusarium graminearum population-specific differences during wheat infection

Author
item Ward, Todd
item Vaughan, Martha
item Cuperlovic-culf, Miroslava - National Research Council - Canada
item Mccormick, Susan
item Bakker, Matthew
item Palmquist, Debra

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 8/7/2019
Publication Date: 8/7/2019
Citation: Ward, T.J., Vaughan, M.M., Cuperlovic-Culf, M., McCormick, S.P., Bakker, M.G., Palmquist, D.E. 2019. Fusarium graminearum population-specific differences during wheat infection [abstract].

Interpretive Summary:

Technical Abstract: Fusarium graminearum (Fg) is the primary fungal pathogen responsible for Fusarium head blight (FHB), a devastating disease of wheat and barley worldwide. FHB reduces crop yield and contaminates grain with trichothecene mycotoxins that are harmful to plant, human and animal health. Three genetically distinct populations of Fg, each associated with a different trichothecene chemotype, have been identified in North America (NA1, NA2, and NA3). To determine how this population-level diversity influences pathogenesis and mycotoxin contamination, we inoculated moderately resistant hard red spring wheat variety Alsen with 15 representative strains from each NA population and evaluated disease progression, mycotoxin accumulation, and fungal biomass. Additionally, we evaluated Fg population-specific differences in induced host defense responses.