Early events in host-pathogen interactions

Research focused on early events in host-pathogen interactions has provided new insights into fundamental aspects of microbial pathogenicity and plant responses. Considerable progress has been made in understanding regulation of the delivery of pathogenicity determinants from bacteria into plant cel ls, signal cascades involved in fungal pathogenicity, the co-ordinating rol e of the plant cytoskeleton in plant defence and calcium flux as a primary signalling function during the hypersensitive reaction.