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Immunochemical, biochemical and pathogenic properties of fluidal and intermediate strains of Clavibacter michiganensis subsp. sepedonicus

Author

Listed:
  • B. Kokošková

    (Division of Plant Medicine, Research Institute of Crop Production, 161 06 Prague-Ruzyně, Czech Republic *)

  • R. Jeřabková

    (Division of Plant Medicine, Research Institute of Crop Production, 161 06 Prague-Ruzyně, Czech Republic *)

Abstract

Clavibacter michiganensis subsp. sepedonicus (Cms), causing ring rot of potato, is a quarantine bacterium. According to colony morphology, Cms occurs mostly as fluidal (smooth), but sometime as intermediate (rough, i.e. less fluidal) variants, too. Commercial monoclonal antibodies (Agdia, USA) were used for determination of 40 Cms strains representing both forms. All Cms strains were reliably identified by IFAS, but atypical cells were sometime recorded in population of intermediate strains. The fluidal Cms strains were more reliably identified using DAS-ELISA and the Biolog GP MicroPlate SystemTM than intermediate strains. The intermediate Cms strains had decreased metabolic activity compared with fluidal strains and that is why they were identified only to the genera or to the species level or not identified. The differences among fluidal and intermediate Cms strains were recorded also in bioassay on eggplants. The intermediate Cms strains caused atypical or no symptoms with comparison to fluidal strains.

Suggested Citation

  • B. Kokošková & R. Jeřabková, 2002. "Immunochemical, biochemical and pathogenic properties of fluidal and intermediate strains of Clavibacter michiganensis subsp. sepedonicus," Plant Protection Science, Czech Academy of Agricultural Sciences, vol. 38(SI2-6thCo), pages 291-293.
    • Handle: RePEc:caa:jnlpps:v:38:y:2002:i:si2-6thconfefpp:id:10471-pps
    DOI: 10.17221/10471-PPS
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