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2006

Iowa State University

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NCRPIS Conference Papers, Posters and Presentations

Cucurbitaceae

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Individual And Population Aspects Of Interactions Between Cucurbits And Pseudoperonospora Cubensis: Pathotypes And Races, A. Lebeda, M. P. Widrlechner, J. Urban Jan 2006

Individual And Population Aspects Of Interactions Between Cucurbits And Pseudoperonospora Cubensis: Pathotypes And Races, A. Lebeda, M. P. Widrlechner, J. Urban

NCRPIS Conference Papers, Posters and Presentations

This paper reviews the current state of knowledge regarding variation in interactions between Cucurbitaceae and Pseudoperonospora cubensis as a backdrop for the development and use of systems to characterize pathogenicity at the individual and population levels. Host-parasite specificity and interactions between Cucurbitaceae and P. cubensis exhibit significant variation on both the individual and population level. However, our phytopathological and genetic knowledge of the interactions between individual P. cubensis isolates and a broad range of accessions of most important genera of cultivated cucurbits (e.g., Cucumis, Cucurbita, Citrullus) remains limited. Recently, an improved differential set of cucurbit accessions was developed to ...