title: Pathovars of Pseudomonas syringae causing bacterial brown spot and halo blight in phaseolus vulgaris L. are distinguishable by ribotyping.
abstract: Ribotyping was evaluated as a method to differentiate between Pseudomonas syringae pv. phaseolicola and pv. syringae strains causing bacterial brown spot and halo blight diseases in Phaseolus vulgaris L. Ribotyping, with restriction enzymes BglI and SalI and using the Escherichia coli rrnB operon as the probe, differentiated 11 and 14 ribotypes, respectively, and a combination of data from both procedures yielded 19 combined ribotypes. Cluster analysis of the combined ribotypes differentiated the pathovars phaseolicola and syringae, as well as different clonal lineages within these pathovars. The potential of ribotyping to screen for correlations between lineages and factors such as geographical region and/or bean varieties is also reported.
authors.affiliation: Servicio Regional de Investigación y Desarrollo Agrario, Consejería de Agricultura, Ganadería y Pesca, 33300-Villaviciosa, Spain. anagf@princast.es
authors.forename: A J
authors.initials: AJ
authors.lastname: González
authors.forename: E
authors.initials: E
authors.lastname: Landeras
authors.forename: M C
authors.initials: MC
authors.lastname: Mendoza
mesh_terms: D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000378:metabolism; D015252:Deoxyribonucleases, Type II Site-Specific / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics; D007887:Fabaceae / Q000382:microbiology*; D010802:Phylogeny; D010935:Plant Diseases / Q000382:microbiology; D010946:Plants, Medicinal; D011549:Pseudomonas / Q000145:classification* / Q000235:genetics / Q000472:pathogenicity*; D012407:rRNA Operon
chemical_list: D004269:DNA, Bacterial; D015252:Deoxyribonucleases, Type II Site-Specific; C018492:GCCNNNNNGGC-specific type II deoxyribonucleases; C029792:GTCGAC-specific type II deoxyribonucleases