Draft Genome Sequence of Xanthomonas arboricola Strain 3004, a Causal Agent of Bacterial Disease on Barley

Игнатов, А. Н.; Kyrova, Elena I.; Виноградова, С. В.; Kamionskaya, A. M.; Schaad, N. W.; Luster, Douglas G.

doi:10.1128/genomea.01572-14

Cited by 24 publications

(32 citation statements)

References 12 publications

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“…All the strains harbored CDS that encoded for HpaR2, HpaS, HrpG and HrpX, which are involved in the regulation of the T3SS, and for many of the T3Es and some cell-wall degrading enzymes [43]. However, the strains 3004, CFBP 7634 and CITA 44, as described before [7,17,19], did not present the components of the T3SS that have been found in other Xanthomonas . Besides the master regulons mentioned above, all the remaining X .…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2016

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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.

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Section: Resultsmentioning

confidence: 99%

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

et al. 2016

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“…isolated in Rwanda have reduced T3E repertoires (5,17,59). Xanthomonas sacchari and strains of X. arboricola and Xanthomonas cannabis do not present known T3Es (67,70,126). Interestingly, in several Xanthomonas species, a correlation was observed between pathovars and the composition of T3E repertoires (57)(58)(59), further suggesting that T3E repertoires play a major role in determining the host specificity of strains.…”

Section: Type III Effector Proteins As Major Host-specificity Determimentioning

confidence: 99%

Using Ecology, Physiology, and Genomics to Understand Host Specificity inXanthomonas

Jacques

Arlat

Boulanger

et al. 2016

Annu. Rev. Phytopathol.

168

139

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How pathogens coevolve with and adapt to their hosts are critical to understanding how host jumps and/or acquisition of novel traits can lead to new disease emergences. The Xanthomonas genus includes Gram-negative plant-pathogenic bacteria that collectively infect a broad range of crops and wild plant species. However, individual Xanthomonas strains usually cause disease on only a few plant species and are highly adapted to their hosts, making them pertinent models to study host specificity. This review summarizes our current understanding of the molecular basis of host specificity in the Xanthomonas genus, with a particular focus on the ecology, physiology, and pathogenicity of the bacterium. Despite our limited understanding of the basis of host specificity, type III effectors, microbe-associated molecular patterns, lipopolysaccharides, transcriptional regulators, and chemotactic sensors emerge as key determinants for shaping host specificity.

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“…The most interesting differences amongst X. arboricola strains are related to the T3SS and its associated T3Es, as well as other type III secreted proteins (T3SPs). The hrp T3SS in X. arboricola is present in almost all the analysed strains, with the exception of some strains isolated from barley (Ignatov et al ., ), walnut (Cesbron et al ., ; Essakhi et al ., ), P. mahaleb (Garita‐Cambronero et al ., ) and peach (Garita‐Cambronero et al ., ). All the latter strains showed a low‐virulent or non‐pathogenic phenotype after inoculation in the host in which they were isolated, and, in addition, presented a profile comprising zero to seven T3Es and T3SPs; furthermore, none were phylogenetically associated with the described pathovars of X. arboricola (Cesbron et al ., ; Garita‐Cambronero et al ., ).…”

Section: Pathogenomics Of X Arboricola According To the Whole‐genomementioning

confidence: 99%

“…In addition to these phylogenetic analyses, initial descriptions of these genomes have permitted the ability to find variation amongst the pathogenic features presented in this low-virulent group and those members of the most virulent pathovars. Most showed remarkable variants in genomic regions associated with the regulation and structure of the hrc/hrp T3SS and related T3Es Ignatov et al, 2015). In the light of evidence of the existence of pathogenic and non-pathogenic strains of X. arboricola, apparently evolving in sympatry on Prunus spp., potential virulence factors associated with the development of bacterial spot disease have been identified Garita-Cambronero et al, 2016b.…”

Section: Comparative Genomics and Description Of The Virulence Factormentioning

confidence: 99%

Xanthomonas arboricola pv. pruni, causal agent of bacterial spot of stone fruits and almond: its genomic and phenotypic characteristics in the X. arboricola species context

Garita-Cambronero

Palacio-Bielsa

Cubero

2018

Molecular Plant Pathology

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Management of bacterial spot of stone fruits and almond is based on an integrated approach that comprises essential measures to avoid Xap introduction in a production zone, as well as the use of tolerant or resistant plant material and chemical treatments, mainly based on copper compounds. Management programmes also include the use of appropriate cultivation practices when the disease is already established. Finally, for the effective control of the disease, appropriate detection and characterization methods are needed for use in symptomatic or asymptomatic samples as a first approach for pathogen exclusion. USEFUL WEBSITES: https://gd.eppo.int/taxon/XANTPR; http://www.cost.eu/COST_Actions/ca/CA16107; http://www.xanthomonas.org.

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Draft Genome Sequence of Xanthomonas arboricola Strain 3004, a Causal Agent of Bacterial Disease on Barley

Cited by 24 publications

References 12 publications

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

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

Using Ecology, Physiology, and Genomics to Understand Host Specificity inXanthomonas

Xanthomonas arboricola pv. pruni, causal agent of bacterial spot of stone fruits and almond: its genomic and phenotypic characteristics in the X. arboricola species context

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