Abstract
Five strains of Pseudomonas solanacearum, collected from northwest Florida tomato fields, were inoculated onto 23 tomato (Lycopersicon esculentum) genotypes and one tomatillo (Physalis ixocarpa) genotype using a stem puncture technique. The strains represented a diverse group based upon pathogenic aggressiveness and profiles of their fatty acid content. Resistance was evaluated by comparing the response of each genotype to susceptible controls consisting of L. esculentum cv Bonny Best and Sunny. A differential response by the genotypes to the individual strains was observed. Germplasm from Hawaii (H7997 and H7998) exhibited some resistance to one of the strains while germplasm from Taiwan (CL 5915-93-1-0-C-1) was moderately resistant to another strain. However, no genotype was resistant to all five strains tested.
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