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
 Temperate Tree Fruit and Vegetable Research: Wapato, WA
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    Facilities
                        USDA Laboratory in Wapato, WA
                                    USDA Prosser Worksite
                                    USDA Moxee Farm
                    About UsSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Pacific West Area Wapato, Washington Temperate Tree Fruit and Vegetable 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
                                            Munyaneza, Joseph

                                                         - *Joe*item
                                            Swisher Grimm, Kylie
  Submitted to: Meeting Proceedings
                                    Publication Type: Proceedings
                                    Publication Acceptance Date: 2/24/2015
                                    Publication  Date: 7/7/2015
                                    Citation: Munyaneza, J.E., Swisher, K.D. 2015. Assessing transmission of ‘Candidatus Liberibacter solanacearum’ haplotypes through seed potato  . Meeting Proceedings. pp. 59-62.Interpretive Summary: Zebra chip, a new and economically important disease of potato in the United States severely affects quality and yield of potato tubers and is caused by the newly discovered bacterium Liberibacter, vectored by the potato psyllid. Researchers at USDA-ARS Wapato in Washington assessed the impact of different genetic variants of the bacterium and its insect vector on the severity of the disease. It was determined that genetic variations in both Liberibacter and potato psyllid do not influence the defect severity caused by zebra chip in potato tubers. Information from this research will help potato producers reduce damage caused by zebra chip by equally managing different genetic populations of the disease pathogen and its insect vector.
                                Technical Abstract: Conflicting data has previously been reported concerning the impact of zebra chip disease transmission through seed tubers.  These discrepancies may be due to the experimental design of each study, whereby different pathogen haplotypes, insect vector haplotypes, and potato plant varieties were used.  In support of this, it has been suggested that the pathogen haplotypes induce different levels of zebra chip severity in potato.  To address these factors that could have contributed to the conflicting results, we are conducting a large experiment to explore the impact of two ‘Candidatus Liberibacter solanacearum’ (Lso) haplotypes, three Bactericera cockerelli psyllid haplotypes, and eight potato varieties on zebra chip disease transmission through tubers.  Initial results suggest that both Lso haplotypes A and B are capable of inducing severe disease symptoms, regardless of the psyllid haplotype used to vector the Lso.  Based on our preliminary results, it is not likely that pathogen haplotype or insect vector haplotype is the reason for the previous conflicting results.


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