Abstract
Black rot, caused by Xanthomonas campestris pv. campestris (Xcc) is a severe seedborne disease of Brassica crops around the world. Nine races are recognized, being races 1 and 4 the most aggressive and widespread. The identification of Xcc races affecting Brassica crops in a target area is necessary to establish adequate control measures and breeding strategies. The objectives of this study were to isolate and identify Xcc strains from northwestern Spain by using semi-selective medium and pathogenicity tests, determine the existing races of Xcc in this area by differential series of Brassica spp., and evaluate the use of repetitive DNA polymerase chain reaction-based fingerprinting (rep-PCR) to differentiate among the nine existing Xcc races. Seventy five isolates recovered from infected fields were identified as Xcc. Race-typing tests determined the presence of the following seven pathogen races: 1, 4, 5, 6, 7, 8 and 9. Race 4 was the most frequent in Brassica oleracea and race 6 in Brassica rapa crops, therefore breeding should be focussed in obtaining resistant varieties to both races. Cluster analysis derived from the combined fingerprints showed four groups, but no clear relationship to race, crop or geographical origin was found. Rep-PCR analysis was found not to be a reliable method to discriminate among Xcc races, therefore race typing of Xcc isolates should be done by using the differential series of Brassica spp. genotypes or another alternative approach.
Similar content being viewed by others
References
Barak, J. D., & Gilbertson, R. L. (2003). Genetic diversity of Xanthomonas campestris pv. vitians, the causal agent of bacterial leafspot of lettuce. Phytopathology, 93, 596–603.
Castaneda, A., Reddy, J. D., El-Yacoubi, B., & Gabriel, D. W. (2005). Mutagenesis of all eight avr genes in Xanthomonas campestris pv. campestris had no detected effect on pathogenicity, but one avr gene affected race specificity. Molecular Plant-Microbe Interactions, 18, 1306–1317.
Fargier, E., & Manceau, C. (2007). Pathogenicity assays restrict the species Xanthomonas campestris into three pathovars and reveal nine races within X. campestris pv. campestris. Plant Pathology, 56, 805–818.
Fukui, R., Arias, R., & Alvarez, R. (1994). Efficacy of four semi-selective media for recovery of Xanthomonas campestris pv. campestris from tropical soils. Journal of Applied Microbiology, 77, 534–540.
Griesbach, E., Loptien, H., & Miersch, U. (2003). Resistance to Xanthomonas campestris pv. campestris (Pammel) Dowson in cabbage Brassica oleracea L. Journal of Plant Diseases and Protection, 110, 461–475.
Griffiths, P. D., & Roe, C. (2005). Response of Brassica oleracea var. capitata to wound and spray inoculations with Xanthomonas campestris pv. campestris. Hortscience, 40, 47–49.
Ignatov, A., Kuginuki, Y., & Hida, K. (1998). Race-specific reaction of resistance to black rot in Brassica oleracea. European Journal of Plant Pathology, 104, 821–827.
Ignatov, A., Sechler, A., Schuenzel, E. L., Agarkova, I., Oliver, B., Vidaver, A. K., & Schaad, N. W. (2007). Genetic diversity in populations of Xanthomonas campestris pv. campestris in cruciferous weeds in central coastal California. Phytopathology, 97, 803–812.
Jensen, B. D., Vicente, J. G., Manandhar, H. K., & Roberts, S. J. (2010). Occurrence and diversity of Xanthomonas campestris pv. campestris in vegetable Brassica fields in Nepal. Plant Disease, 94, 298–305.
Kamoun, S., Kamdar, H. V., Tola, E., & Kado, C. I. (1992). Incompatible interactions between crucifers and Xanthomonas campestris involve a vascular hypersensitive response: Role of the hrpX locus. Molecular Plant-Microbe Interactions, 5, 22–33.
Kieser, T., Bibb, M. J., Buttner, M. J., Chater, K. F., & Hopwood, D. A. (2000). Practical streptomyces genetics (p. 613). Norwich: John Innes Foundation.
Koenraadt, H., Van Bilsen, J., & Roberts, S. (2005). Comparative test of four semi-selective agar media for the detection of Xanthomonas campestris pv. campestris in Brassica seeds. Seed Science and Technology, 33, 115–125.
Lema-Marquez, M., Teran, H., & Singh, S. P. (2007). Selecting common bean with genes of different evolutionary origins for resistance to Xanthomonas campestris pv. phaseoli. Crop Science, 47, 1367–1374.
Lema, M., Soengas, P., Francisco, M., & Velasco, P. (2008). Diseases affecting Brassica crops in Northwestern of Spain. Cruciferae Newsletter, 27, 24–26.
Lema, M., Soengas, P., Velasco, P., Francisco, M., & Cartea, M. E. (2011). Identification of sources of resistance to Xanthomonas campestris pv. campestris in Brassica napus crops. Plant Disease, 95, 292–297.
Lopes, S. A., Damann, K. E., & Grelen, L. B. (2001). Xanthomonas albilineans diversity and identification based on Rep-PCR fingerprints. Current Microbiology, 42, 155–159.
Lopez, R., Asensio, C., & Gilbertson, R. L. (2006). Phenotypic and genetic diversity in strains of common blight bacteria (Xanthomonas campestris pv. phaseoli and X. campestris pv. phaseoli var. fuscans) in a secondary center of diversity of the common bean host suggests multiple introduction events. Phytopathology, 96, 1204–1213.
Louws, F. J., Fulbright, D. W., Stephens, C. T., & de Bruijn, F. J. (1994). Specific genomic fingerprints of phytopathogenic Xanthomonas and Pseudomonas pathovars and strains generated with repetitive sequences and PCR. Applied Environmental Microbiology, 60, 2286–2295.
Louws, F. J., Fulbright, D. W., Stephens, C. T., & de Bruijn, F. J. (1995). Differentiation of genomic structure by rep-PCR fingerprinting to rapidly classify Xanthomonas campestris pv. vesicatoria. Phytopathology, 85, 528–536.
Louws, F. J., Rademaker, J. L. W., & de Bruijn, F. J. (1999). The three DS of PCR-based genomic analysis of phytobacteria: diversity, detection, and disease diagnosis. Annual Review of Phytopathology, 37, 81–125.
Mahuku, G. S., Jara, C., Henriquez, M. A., Castellanos, G., & Cuasquer, J. (2006). Genotypic characterization of the common bean bacterial blight pathogens, Xanthomonas axonopodis pv. phaseoli and Xanthomonas axonopodis pv. phaseoli var. fuscans by rep-PCR and PCR-RFLP of the ribosomal genes. Journal of Phytopathology, 154, 35–44.
Massomo, S. M. S., Nielsen, H., Mabagala, R. B., Mansfeld-Giese, K., Hockenhull, J., & Mortensen, C. N. (2003). Identification and characterisation of Xanthomonas campestris pv. campestris strains from Tanzania by pathogenicity tests, Biolog, rep-PCR and fatty acid methyl ester analysis. European Journal of Plant Pathology, 109, 775–789.
Mkandawire, A. B. C., Mabagala, R. B., Guzman, P., Gepts, P., & Gilbertson, R. L. (2004). Genetic diversity and pathogenic variation of common blight bacteria (Xanthomonas campestris pv. phaseoli and X. campestris pv. phaseoli var. fuscans) suggests pathogen coevolution with the common bean. Phytopathology, 94, 593–603.
Ortega, A. M., & López, M. M. (1990). Identificación de Xanthomonas campestris pv. campestris (Pammel) Dowson en distintas especies de Brassica. Proceedings of the V Congreso de la Sociedad Española de Fitopatología, 199-204.
Rademaker, J. L. W., & De Bruijn, F. J. (1997). Characterization and classification of microbes by rep-PCR genomic fingerprinting and computer assisted pattern analysis. In G. Caetano-Anolles & P. M. Gresshoff (Eds.), DNA markers: Protocols, applications, and overviews (pp. 151–171). New York: Wiley.
Schaad, N. W., Jones, J. B., & Chun, W. (2001). Laboratory guide for identification of plant pathogenic bacteria (p. 373). St. Paul: American Phytopathological Society.
Taylor, J. D., Conway, J., Roberts, S. J., Astley, D., & Vicente, J. G. (2002). Sources and origin of resistance to Xanthomonas campestris pv. campestris in Brassica genomes. Phytopathology, 92, 105–111.
Tsygankova, S. V., Ignatov, A. N., Boulygina, E. S., Kuznetsov, B. B., & Korotkov, E. V. (2004). Genetic relationships among strains of Xanthomonas campestris pv. campestris revealed by novel rep-PCR primers. European Journal of Plant Pathology, 110, 845–853.
Urquijo, P., Sardiña, J. R., & Santaolalla, G. (1971). Patología Vegetal Agrícola; Enfermedades de las Plantas (pp. 92–94). Madrid: Mundi-Prensa.
Valverde, A., Hubert, T., Stolov, A., Dagar, A., Kopelowitz, J., & Burdman, S. (2007). Assessment of genetic diversity of Xanthomonas campestris pv. campestris isolates from Israel by various DNA fingerprinting techniques. Plant Pathology, 56, 17–25.
Vicente, J. G. (2004). In G. Lopes (Ed.), A podridão negra das cruciferas (Black rot of crucifers) (p. 102). Alcobaça: COTHN Centro Operativo e Tecnológico Hortofrutícola.
Vicente, J. G., Conway, J., Roberts, S. J., & Taylor, J. D. (2001). Identification and origin of Xanthomonas campestris pv. campestris races and related pathovars. Phytopathology, 91, 492–499.
Vicente, J. G., Everett, B., & Roberts, S. J. (2006). Identification of isolates that cause a leaf spot disease of brassicas as Xanthomonas campestris pv. raphani and pathogenic and genetic comparion with related pathovars. Phytopathology, 96, 735–745.
Williams, P. H. (1980). Black rot: a continuing threat to world crucifers. Plant Disease, 64, 736–742.
Zaccardelli, M., Campanile, F., Moretti, C., & Buonaurio, R. (2008). Characterization of Italian populations of Xanthomonas campestris pv. campestris using primers based on DNA repetitive sequences. Journal of Plant Pathology, 90, 375–381.
Zhai, J. L., Luo, Y. H., Zheng, D. J., & Huang, X. (2010). Evaluation of genetic diversity of highly virulent strains of Xanthomonas campestris pv. malvacearum by rep-PCR fingerprinting. Journal of Phytopathology, 158, 764–768.
Acknowledgements
The authors thank to M.M. López (IVIA, Valencia, Spain) for supplying five bacterial strains from Spain, to Joana Vicente from Warwick HRI, Wellesbourne (UK) for supplying the Brassica differential series for Xanthomonas campestris pv. campestris and the bacterial strains HRI 3811, HRI 3849A, HRI 5212, HRI 1279A, HRI 3880 and HRI 6181 representing races 1 to 6, and to CFBF-INRA, Angers (France) for supplying bacterial strains CFBP 4953, CFBP 1124 and CFBP 6650 representing races 7, 8 and 9 respectively. Authors also thank to Eva González her help in DNA extractions.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lema, M., Cartea, M.E., Sotelo, T. et al. Discrimination of Xanthomonas campestris pv. campestris races among strains from northwestern Spain by Brassica spp. genotypes and rep-PCR. Eur J Plant Pathol 133, 159–169 (2012). https://doi.org/10.1007/s10658-011-9929-5
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10658-011-9929-5