PAMP recognition and the plant-pathogen arms race

Bioessays. 2006 Sep;28(9):880-9. doi: 10.1002/bies.20457.


Plants have evolved systems analogous to animal innate immunity that recognise pathogen-associated molecular patterns (PAMPs). PAMP detection is an important component of non-host resistance in plants and serves as an early warning system for the presence of potential pathogens. Binding of a PAMP to the appropriate pattern recognition receptor leads to downstream signalling events and, ultimately, to the induction of basal defence systems. To overcome non-host resistance, pathogens have evolved effectors that target specific regulatory components of the basal defence system. In turn, this has led to the evolution in plants of cultivar-specific resistance mediated by R proteins, which guard the targets of effectors against pathogen manipulation; the arms race continues.

Publication types

  • Review

MeSH terms

  • Flagellin / metabolism
  • Immunity, Innate / immunology
  • Models, Biological
  • Plant Diseases*
  • Signal Transduction*


  • Flagellin