The shoot apical meristem regulatory peptide CLV3 does not activate innate immunity

Plant Cell. 2012 Aug;24(8):3186-92. doi: 10.1105/tpc.111.091264. Epub 2012 Aug 24.

Abstract

The Arabidopsis thaliana leucine-rich repeat receptor kinase FLAGELLIN SENSING2 (FLS2) is required for the recognition of bacterial flagellin in innate immunity. Recently, FLS2 was proposed to act as a multispecific receptor recognizing unrelated exogenous and endogenous peptide ligands, including CLAVATA3 (CLV3), a key regulator of shoot meristem stem cell production. Here, we report experimental evidence demonstrating that FLS2 does not recognize CLV3 and that the shoot apical meristem is immune to bacteria independently of CLV3 perception.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arabidopsis / genetics
  • Arabidopsis / immunology*
  • Arabidopsis / microbiology
  • Arabidopsis Proteins / genetics
  • Arabidopsis Proteins / immunology*
  • Enzyme Activation
  • Green Fluorescent Proteins / metabolism
  • Host-Pathogen Interactions
  • Ligands
  • Meristem / immunology
  • Meristem / metabolism*
  • Meristem / microbiology
  • Plant Diseases / immunology
  • Plant Diseases / microbiology
  • Plant Immunity*
  • Plant Shoots / immunology
  • Plant Shoots / metabolism*
  • Plant Shoots / microbiology
  • Plants, Genetically Modified / genetics
  • Plants, Genetically Modified / immunology
  • Plants, Genetically Modified / microbiology
  • Protein Binding
  • Protein Kinases / genetics
  • Protein Kinases / immunology
  • Pseudomonas syringae / immunology
  • Pseudomonas syringae / pathogenicity
  • Receptors, Cell Surface / immunology
  • Receptors, Cell Surface / metabolism

Substances

  • AT2G27250 protein, Arabidopsis
  • Arabidopsis Proteins
  • Ligands
  • Receptors, Cell Surface
  • Green Fluorescent Proteins
  • Protein Kinases
  • FLS2 protein, Arabidopsis