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
 Wheat, Sorghum and Forage Research: Lincoln, NE
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    CareersSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Plains Area Lincoln, Nebraska Wheat, Sorghum and Forage 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

Title:   Author  item
                                            Funnell-Harris, Deannaitem
                                            Pedersen, Jeffreyitem
                                            Sattler, Scott
  Submitted to: National American Phytopathology Meetings
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 5/3/2010
                                    Publication  Date: 6/1/2010
                                    Citation: Funnell-Harris, D.L., Pedersen, J.F., Sattler, S.E. 2010. Alteration in Lignin Biosynthesis Restricts Growth of Fusarium Species in Brown Midrib Sorghum. Phytopathology 100:S37Interpretive Summary:
                                Technical Abstract: To improve sorghum for bioenergy and forage uses, brown midrib6 (bmr6) and bmr12 near-isogenic genotypes were developed in different sorghum backgrounds. bmr6 and bmr12 grain had significantly reduced colonization by members of the Gibberella fujikuroi species complex, compared with wild-type, as detected on two semi-selective media. Fusarium species were identified using sequence analysis of a portion of the translation elongation factor 1-a gene (TEF). The pathogens Fusarium thapsinum, Fusarium proliferatum and Fusarium verticillioides, G. fujikuroi members, were commonly recovered. Other frequently isolated Fusarium species likely colonize sorghum asymptomatically. Chi-square analyses showed that the ratios of Fusarium species colonizing bmr12 grain were significantly different from wild-type, indicating that bmr12 affects colonization by Fusarium spp. One Fusarium incarnatum/equiseti species complex (FIESC) genotype, commonly isolated from wild-type and bmr6 grain, was not detected in bmr12 grain. Phylogenetic analysis suggested that this FIESC genotype represents a previously unreported TEF haplotype. When peduncles of wild-type and near-isogenic bmr plants were inoculated with F. thapsinum F. verticillioides, or Alternaria alternata, the resulting mean lesion lengths were significantly reduced relative to wild-type in one or both bmr mutants. This indicates that impairing lignin biosynthesis results in reduced colonization by Fusarium spp. and A. alternata.


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