The soilborne fungus, Phytophthora , develops through a series of life stages from dormant propagules to infective zoospore cysts, in the course of infecting a plant root. The transition from one life stage to the next depends on environmental signals, particularly those generated by host plants. In a second project, we are studying the basis of soybean tolerance to infection by Phytophthora sojae .
Tolerance is defined on the basis of soybean field performance in the presence of the pathogen.
PR proteins are being used as disease resistance markers that will assist in localizing the timing and tissue specificity of plant defense responses in these cultivars. Fused zoospores of Phytophthora capsici and P. nicotianae exhibiting multiple nuclei. Evaluation of matrix population models of the population dynamics of the forage legume Lotus corniculatus . English, J.T., Laday, M., Bakonyi, J., Schoelz, J.E., and Ersek, T. 1999. Phenotypic and molecular characterization of species hybrids derived from induced fusion of zoospores of Phytophthora capsici and Phytophthora nicotianae .