Role of Preformed Factors in Specificity

  • Fritz Schönbeck
Part of the NATO Advanced Study Institutes Series book series (NSSA, volume 10)


Specificity in plant diseases based on preformed factors means that one pathogen is prevented from infecting a potential host by one or more factors occurring in the plant before, and independently of infection. Another pathogen, however, may have the ability to overcome this established barrier. Also included are diseases in which infection is prevented by the deficiency of essential factors in the plant or in the parasite.


Botrytis Cinerea Antimicrobial Substance Avena Sativa Tulip Bulb Animal Parasite 
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Copyright information

© Plenum Press, New York 1976

Authors and Affiliations

  • Fritz Schönbeck
    • 1
  1. 1.Institut für Pflanzenkrankheiten und PflanzenschutzTechnischen Universität HannoverW. Germany

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