Protoplasma

, Volume 181, Issue 1–4, pp 202–212

Adhesion of fungal spores and germlings to host plant surfaces

  • E. J. Braun
  • R. J. Howard
Article

Summary

Firm adhesion of fungal plant pathogens to their hosts is critical at several stages in the host-parasite interaction. Spores of many fungal species are capable of rapid, non-specific attachment to various surfaces. This early adhesion, which often occurs well before germ tube emergence, prevents spores from being blown or washed from the host surface before infection can take place. Adhesion is critical for proper sensing of topographic signals involved in thigmotropic responses and for differentiation and function of appressoria. Four fungal pathogens which exhibit a variety of adhesion mechanisms have been selected for discussion.

Keywords

Fungal adhesion Appressoria Plant disease Cochliobolus heterostrophus Magnaporthe grisea Nectria haematococca Uromyces spp 

Abbreviations

EMC

extracellular matrix

FSTEM

freeze-substitution transmission electron microscopy

Con A

concanavalin A

CryoSEM

cryo scanning electron microscopy

MTM

macroconidial tip mucilage

STM

spore tip mucilage

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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • E. J. Braun
    • 1
    • 2
  • R. J. Howard
    • 1
    • 2
  1. 1.Department of Plant PathologyIowa State UniversityAmesUSA
  2. 2.Central Research and Developmentthe DuPont CompanyWilmington

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