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Phytoparasitica

, 39:483 | Cite as

Erwinia aphidicola isolated from commercial bean seeds (Phaseolus vulgaris)

  • F. Marín
  • M. Santos
  • F. Carretero
  • J. A. Yau
  • F. Diánez
Article

Abstract

In late 2003, a new disease appeared in protected bean crops in southeastern Spain, causing a decrease of over 50% in production. Several samples of affected plants were collected and analyzed and the agent of this disease was identified as the bacterium Erwinia aphidicola, which had never been described as a pathogen previously. We attempted to determine the possible bacterium transmission through seeds, using 120 commercial bean seeds from the same batch as that used in an affected farm, and 120 seeds from the fruiting plants of the same farm. Seed coats, cotyledons and leaves of plants originating from them, were taken and analyzed. Several of the developed symptoms on plants from commercial and fruiting plant seeds were internervial chlorosis, necrotic pits and rough roots and they coincided with those observed on affected crops. Bacteria present in commercial seed cotyledons were isolated and analyzed by biochemical and molecular tests. Results confirmed the presence of Erwinia aphidicola in four analyzed seeds; moreover, Bacillus simplex/Bacillus muralis, Pseudomonas mendocina, Pseudomonas putida and Paenibacillus polymyxa were also identified.

Keywords

Erwinia persicina PCR Transmission 

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Copyright information

© Springer Science + Business Media B.V. 2011

Authors and Affiliations

  • F. Marín
    • 1
  • M. Santos
    • 1
  • F. Carretero
    • 1
  • J. A. Yau
    • 1
  • F. Diánez
    • 1
  1. 1.Vegetal Production DepartmentUniversity of AlmeríaAlmeríaSpain

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