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A renaissance of elicitors: perception of microbe-associated molecular patterns and danger signals by

Thomas Boller1, Georg Felix

  • 1Botanisches Institut, Universität Basel, CH 4056 Basel, Switzerland. thomas.boller@unibas.ch

Annual Review of Plant Biology
|April 30, 2009
PubMed

Insights

Plants use microbe-associated molecular patterns (MAMPs) and damage-associated molecular patterns (DAMPs) to detect threats. Recognizing these signals via pattern recognition receptors (PRRs) is crucial for activating plant immunity against pathogens.

Area of Science:

  • Plant biology
  • Immunology
  • Molecular biology

Background:

  • Innate immunity relies on recognizing conserved microbial patterns (MAMPs) and endogenous danger signals (DAMPs).
  • Pattern recognition receptors (PRRs) are essential for detecting these signals in plants.

Purpose of the Study:

  • To review the diversity of MAMPs/DAMPs and advances in identifying plant PRRs.
  • To explore the mechanisms of MAMP/PRR signaling in plant defense.

Main Methods:

  • Phylogenetic analysis of MAMP/PRR pairs.
  • Biochemical studies of PRR complex formation and function.
  • Review of existing literature on plant immune signaling.

Main Results:

  • The flagellin/FLS2 and EF-Tu/EFR MAMP/PRR pairs are well-characterized LRR-RKs.
  • FLS2 forms a complex with BAK1, a coreceptor also involved in brassinolide signaling.
  • Pathogen effectors target PRR complexes and signaling pathways to evade plant immunity.

Conclusions:

  • MAMPs, DAMPs, and pathogen effectors are perceived as danger signals by plants.
  • Recognition of these signals triggers a conserved plant defense response, crucial for immunity.

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