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Identification by PCR analysis on plasmid pEA29 of isolates of Erwinia amylovora responsible of an outbreak in Central Europe

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Abstract

A collection of 127 strains of Erwinia amylovora, the causative agent of fire blight, was tested by PCR amplification of a fragment of the plasmid pEA29. A variability in the length of the DNA fragment obtained was observed after digestion by MspI and Sau3A restriction enzymes. Strains were distributed into three groups according to the length of the DNA product. Most of the strains analysed were placed into two groups. Thirteen strains were clustered into a third group which was linked with the geographical origin of strains: they were all isolates from recently reported outbreaks of fire blight in Austria and in southern Bavaria in Germany. The variation in the length of the amplified fragment is probably due to an insertion into this fragment.

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Authors and Affiliations

  1. Station de Pathologie Végétale, Institut National de la Recherche Agronomique, Centre d'Angers, BP 57, F-49071, Beaucouzé Cedex

    Pascal Lecomte, Charles Manceau & Jean-Pierre Paulin

  2. Bundesamt und Forschungszentrum für Landwirtschaft, Institut für Pflanzenschutzmittelprüfung, Spargelfeldstrasse 191, A-1226, Wien

    Marianne Keck

Authors
  1. Pascal Lecomte
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  2. Charles Manceau
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  3. Jean-Pierre Paulin
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  4. Marianne Keck
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Lecomte, P., Manceau, C., Paulin, JP. et al. Identification by PCR analysis on plasmid pEA29 of isolates of Erwinia amylovora responsible of an outbreak in Central Europe. European Journal of Plant Pathology 103, 91–98 (1997). https://doi.org/10.1023/A:1008607226805

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  • DOI: https://doi.org/10.1023/A:1008607226805

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