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
                                            McCormick, Susanitem
                                            Desjardins, Anne
  Submitted to: Corn Dry Milling Conference
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 6/1/2006
                                    Publication  Date: 6/1/2006
                                    Citation: Mc Cormick, S.P., Desjardins, A.E. 2006. Emerging mycotoxin issues [abstract]. 47th Annual Corn Dry Milling Conference. p. 10.Interpretive Summary:
                                Technical Abstract: The fungus Fusarium graminearum contaminates cereal grain with 8-keto trichothecene mycotoxins, mainly nivalenol and 4-deoxynivalenol.  In most animal studies to date, nivalenol has proven more toxic than deoxynivalenol, and is thus of added concern for food safety.  DNA sequence analysis indicates that nivalenol is the ancestral trait, and that deoxynivalenol-production in F. graminearum evolved by point mutations and deletions in the cytochrome P450 that is responsible for C4-oxygenation.  Limited surveys to date indicate that nivalenol contaminates grain worldwide, but it is rare in North America, where deoxynivalenol-producing populations are now dominant.  However, nivalenol producers have been recently reported from Louisiana.  Deoxynivalenol producers appear to have a selective advantage over nivalenol producers on wheat.  Effective risk management of nivalenol requires development and application of improved methods to monitor this mycotoxin in grain.  Risk management of nivalenol is also affected by the complex genetic structure of F. graminearum populations, which are known to be highly variable on a worldwide basis with regard to patterns of trichothecene production, and virulence on maize, wheat, and other cereal crops.


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