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Seminar: Investigating the race-specificity of the lettuce bacterial leaf spot pathogen

Emma Rosenthal, Graduate Student, Plant Pathology and Environmental Microbiology, Penn State
Emma Rosenthal

Emma Rosenthal

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November 12, 2018, 3:35 PM - 4:30 PM

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Bacterial leaf spot of lettuce is a disease caused by Xanthomonas campestris pathovar vitians. Recent research has characterized the race structure of this pathogen, in which genotype is linked to the ability to elicit hypersensitive response in particular lettuce cultivars. Another study has demonstrated that, in one set of these cultivars, resistance is due to a single, dominant gene. Effectors have previously been studies as sources of host-specificity for bacterial species. This presentation will demonstrate how a study of effector repertoires could provide insight into the origin of cultivar-specificity for this pathovar, and how this knowledge may be used to enhance lettuce breeding and pathogen detection programs.