title: Differentiation of Xanthomonas spp. Causing Bacterial Spot in Bulgaria Based on Biolog System.
abstract: During the last 20 years, the causative agents of bacterial spot of tomato and pepper have been subjected to many studies and reclassifications. According to the current data, the species are four (X. euvesicatoria, X. vesicatoria, X. gardneri, and X. perforans) and cause similar symptoms in plants but possess different phenotypic properties. This work provides the full metabolic characteristics obtained by Biolog system of bacterial spot's xanthomonads based on a large selection of strains from different vegetable-producing regions of Bulgaria with accent on their major differentiating properties which could be used for species differentiation by metabolic profiles. The results are compared to the data available in the literature in order to clarify the strong features of each species and distinguish the variable ones. Simple characteristics like amylase activity and utilization of cis-aconitate cannot serve alone for differentiation.
authors.affiliation: Department of Phytopathology, Institute of Soil Science, Agrotechnologies and Plant Protection "Nikola Poushkarov", 7 Shosse Bankya Street, 1080 Sofia, Bulgaria.
authors.forename: Mariya
authors.initials: M
authors.lastname: Stoyanova
authors.affiliation: Department of General and Industrial Microbiology, Sofia University "St. Kliment Ohridski", 8 Dragan Tsankov Street, 1164 Sofia, Bulgaria.
authors.forename: Taca
authors.initials: T
authors.lastname: Vancheva
authors.affiliation: Department of General and Industrial Microbiology, Sofia University "St. Kliment Ohridski", 8 Dragan Tsankov Street, 1164 Sofia, Bulgaria.
authors.forename: Penka
authors.initials: P
authors.lastname: Moncheva
authors.affiliation: Department of Phytopathology, Institute of Soil Science, Agrotechnologies and Plant Protection "Nikola Poushkarov", 7 Shosse Bankya Street, 1080 Sofia, Bulgaria.
authors.forename: Nevena
authors.initials: N
authors.lastname: Bogatzevska