The development of an efficient transformation system for the fungus Ustilago maydis provides one of the first opportunities to study the molecular genetics of plant pathogenic fungi. Studies on the molecular genetics of RNA plant viruses have led to the determination of specific functions encoded by viral nucleic acids, and investigation of the mechanism of cross-protection in plant viruses has brought about an improved understanding of this intriguing form of disease resistance. Major efforts by several faculty focus on the genetics, physiology, and epidemiology of bacterial pathogens. These studies have resulted in an understanding of their ecology and the mechanisms of virulence and disease resistance. New programs include the use of computer modeling in the development of disease forecasting and crop management systems, efforts directed toward the isolation of plant genes which control induced disease resistance, the development of biological control agents, the development of systems for studying the molecular genetics of pathogens and for understanding factors that determine the specificity of interactions between plants and their parasites, and the elucidation of concepts applicable to understanding the ecology of microbial pathogens.
Projects cover major aspects of diseases caused by viruses, bacteria, nematodes, and fungi.
A strong emphasis has always been placed on the training of graduate students. Over 650 students, more than from any other plant pathology department in the U.S., have received advanced degrees. Our graduates come from over 40 countries. Many graduate students studying with faculty in plant pathology will also receive advanced degrees in agronomy, bacteriology, biometry, environmental studies, genetics, molecular biology, and plant breeding and genetics. This diverse group of students contributes to the multidisciplinary approach, which is frequently essential to solving important biological and agricultural problems.