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ARS Home » Pacific West Area » Salinas, California » Crop Improvement and Protection Research » Research » Research Project #430522

Research Project: Refining the Relationship between Host Range and Genotype for Macrophomina phaseolina and Optimization of Soil Quantification Assays

Location: Crop Improvement and Protection Research

Project Number: 2038-22000-015-25-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Feb 1, 2016
End Date: Jan 31, 2017

The objective of the project is to evaluate the pathogenicity/virulence of isolates of Macrophomina phaseolina on strawberry, examine the population structure of the pathogen, and develop techniques for soil quantification.

Our collaborator with UC Cooperative Extension will collect isolates of the pathogen from field samples and evaluate them for pathogenicity on strawberry and a series of other hosts. Virulence tests will also be performed to confirm if there is any host specificity for the isolates. We will conduct SSR analysis of the populations and compare CA isolates with the population structure found on other hosts in the U.S. (done in collaboration with an ARS scientist in Dawson, Georgia). Soil quantification will be examined by evaluating traditional soil plating assays (UC cooperative) and real time PCR methods (ARS PI).