U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Mycotoxin Prevention and Applied Microbiology Research: Peoria, IL
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    NCAUR homepageSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




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





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications
- MPM Home Page
- Mission Statement
- Strategic Goals
- Major Accomplishments
- Visiting Scientists

Title:   Author  item
                                            FOROUD, N - Lethbridge Research Centeritem
                                            McCormick, Susanitem
                                            MACMILLAN, T - Lethbridge Research Centeritem
                                            BADEA, A - Lethbridge Research Centeritem
                                            Kendra, Daviditem
                                            ELLIS, B - University Of British Columbiaitem
                                            EUDES, F - Lethbridge Research Center
  Submitted to: Plant Disease
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 12/16/2011
                                    Publication  Date: 9/1/2012
                                    Citation: Foroud, N.A., McCormick, S.P., MacMillan, T., Badea, A., Kendra, D.F., Ellis, B.E., Eudes, F. 2012. Greenhouse studies reveal increased aggressiveness of emergent Canadian Fusarium graminearum chemotypes in wheat. Plant Disease. 96(9):1271-1279.Interpretive Summary: Fusarium Head Blight is caused by species of the fungus Fusarium which produce trichothecene mycotoxins. Ingestion of trichothecene-containing grain can result in a variety of symptoms including diarrhea, hemorrhaging and feed refusal. Previous studies have shown that the trichothecenes are also factors in the severity of the plant disease. In this study we found that the type of trichothecene produced by the fungus may also be a factor in the severity of the disease. Although North American Fusarium usually produces the trichothecene 15-ADON, strains that produce a related toxin, 3-ADON, have been increasingly found in North America. Wheat cultivars with moderate disease resistance had both more disease and higher toxin levels in the grain after infection with strains that produce the mycotoxin 3-ADON. Wheat growers can use this information to plant more highly resistant cultivars in regions where 3-ADON-producing Fusarium has been found.
                                Technical Abstract: The role of Fusarium graminearum trichothecene-chemotypes in disease outcomes was evaluated in a series of wheat lines with different levels of resistance to Fusarium Head Blight (FHB). Four inocula, each consisting of a composite of four strains with either 15-acetyldeoxynivalenol (ADON) chemotypes from ‘traditional’ or emergent populations, a 3-ADON chemotype, or a nivalenol (NIV) chemotype, were compared. The evaluated wheat included Canadian lines with different levels of FHB resistance/susceptibility, and double haploid lines developed from crosses of these lines. Highly resistant lines were resistant to infection by all of the F. graminearum chemotypes evaluated. In the moderately-susceptible/resistant wheat lines, the 3-ADON producers and the emergent 15-ADON population were generally more aggressive and resulted in higher Fusarium Damaged Kernel scores and levels of trichothecene accumulation. The data presented in this study demonstrate the importance of growing highly resistant wheat cultivars in the current climate of an evolving F. graminearum population, and suggest that moderate levels of FHB resistance may not be sufficient to minimize trichothecene contamination of grain from F. graminearum-infected wheat.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov