Comparative genomic and phenotypic characterization of pathogenic and non-pathogenic strains of xanthomonas arboricola reveals insights into the infection process of bacterial spot disease of stone fruits
Resumen: Xanthomonas arboricola pv. pruni is the causal agent of bacterial spot disease of stone fruits, a quarantinable pathogen in several areas worldwide, including the European Union. In order to develop efficient control methods for this disease, it is necessary to improve the understanding of the key determinants associated with host restriction, colonization and the development of pathogenesis. After an initial characterization, by multilocus sequence analysis, of 15 strains of X. arboricola isolated from Prunus, one strain did not group into the pathovar pruni or into other pathovars of this species and therefore it was identified and defined as a X. arboricola pv. pruni look-a-like. This non-pathogenic strain and two typical strains of X. arboricola pv. pruni were selected for a whole genome and phenotype comparative analysis in features associated with the pathogenesis process in Xanthomonas. Comparative analysis among these bacterial strains isolated from Prunus spp. and the inclusion of 15 publicly available genome sequences from other pathogenic and non-pathogenic strains of X. arboricola revealed variations in the phenotype associated with variations in the profiles of TonB-dependent transporters, sensors of the two-component regulatory system, methyl accepting chemotaxis proteins, components of the flagella and the type IV pilus, as well as in the repertoire of cell-wall degrading enzymes and the components of the type III secretion system and related effectors. These variations provide a global overview of those mechanisms that could be associated with the development of bacterial spot disease. Additionally, it pointed out some features that might influence the host specificity and the variable virulence observed in X. arboricola.
Idioma: Inglés
DOI: 10.1371/journal.pone.0161977
Año: 2016
Publicado en: PloS one 11, 8 (2016), 0161977 [28 pp]
ISSN: 1932-6203

Factor impacto JCR: 2.806 (2016)
Categ. JCR: MULTIDISCIPLINARY SCIENCES rank: 15 / 63 = 0.238 (2016) - Q1 - T1
Factor impacto SCIMAGO: 1.236 - Agricultural and Biological Sciences (miscellaneous) (Q1) - Medicine (miscellaneous) (Q1) - Biochemistry, Genetics and Molecular Biology (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/INIA-FEDER/RTA2011-00140-C03-02
Financiación: info:eu-repo/grantAgreement/ES/INIA-FEDER/RTA2014-00019-C02-01
Tipo y forma: Artículo (Versión definitiva)

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