Multilocus enzyme electrophoresis analysis ofPseudomonas syringae pv.phaseolicola

A multilocus enzyme electrophoresis technique was developed to detect variation in seven enzyme loci among isolates ofPseudomonas syringae pv.phaseolicola, representing three races from different geographical locations, the causal agent of the halo blight disease of beans. Cellulose acetate gel electrophoresis of seven enzymes revealed 19 electrotypes (ET) among 21Pseudomonas syringae pv.phaseolicola isolates. One of the pathovarsyringae and one of the pathovartomato isolates were represented by two different ET. The population of Turkish isolates and three races of the pathovarphaseolicola appeared to be genetically diverse.