Characterization of Plant Bacterial Pathogens Transmitted by Bean Seeds

The acceleration in movement of germplasm and other genetic material around the world has been considerable potential threat to plant health. Bacterial diseases of bean (Phaseolus vulgaris) cause economically important losses in worldwide and the only practical methods for management are the use of pathogen-free seed, appropriate cultural practices and planting of resistant cultivars. In the study, bean seeds were collected from economically bean growing areas which based size of sowing field on 12 provinces of Central Anatolia region. Morphological, biochemical, physiological and molecular methods were used for identification of pathogens on the seeds. In the region, infestation ratios of Pseudomonas savastanoi pv. phaseolicola, P. syringae. pv. syringae, Xanthomonas axonopodis pv. phaseoli Curtobacterium flaccumfaciens subsp. flaccumfaciens were determined on the seeds as 21%, 13%, 11% and 0.8%, respectively. It is important to determine the level of the diseases incidence in fields and spreading of the bean bacterial diseases and alert the farmers to apply quarantine regulations developed.