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
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home 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
                                            FERNANDEZ-PAVIA, SYLVIA - UMSNH,MICHOACANitem
                                            Grunwald, Niklaus

                                                         - *Nik*item
                                            DIAZ-VALASIS, MARGARITA - CIR-CENTRO INIFAP,MEXICOitem
                                            GARAY-SERRANO, EDITH - PICTIPAPA, MEXICOitem
                                            BELMAR-DIAZ, CLAUDIA - PICTIPAPA, MEXICOitem
                                            CADENA-HINOJOSA, MATEO - CIR-CENTRO INIFAP, MEXICOitem
                                            ROMERO-MONTES, GASPAR - PICTIPAPA, MEXICOitem
                                            FRY, WILLIAM - CORNELL UNIV, ITHACA, NY
  Submitted to: Mexican Journal of Phytopathology
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 10/1/2001
                                    Publication  Date: 6/1/2002
                                    Citation: FERNANDEZ-PAVIA, S., GRUNWALD, N.J., DIAZ-VALASIS, M., GARAY-SERRANO, E., BELMAR-DIAZ, C., CADENA-HINOJOSA, M., ROMERO-MONTES, G., FRY, W.E. CHARACTERIZATION OF POPULATIONS OF PHYTOPHTHORA INFESTANS FROM SOIL AND FOLIAGE COLLECTED IN CENTRAL MEXICO. XIV INTERNATIONAL CONGRESS OF THE MEXICAN PHYTOPATHOLOGICAL SOCIETY. P 125. 2002.Interpretive Summary:
                                Technical Abstract: Oospores of P. infestans were detected in different soils from Central Mexico, but it is unknown whether these populations are as genetically diverse as foliar populations that have been extensively studied in the Toluca Valley. Soils and infected leaflets were sampled from three locations in Central Mexico where potatoes are planted. Samples were collected in Huiloapan and La Cabaña located in Santa Catarina del Monte, Municipio de Texcoco, Edo. de Mexico and the Toluca Valley. A bioassay was used to obtain soilborne isolates. A total of 230 isolates were characterized for mating type, isozyme genotype at the Pep and Gpi loci, and resistance to mefenoxam. Both foliar and soilborne populations showed genotypic diversity, but the frequency of multilocus genotypes varied between populations. Both mating types were found in soil and foliage derived populations, but unique isozyme genotypes were found in soil derived populations not found in foliar populations.


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