A look at plant immunity through the window of the multitasking coreceptor BAK1

Curr Opin Plant Biol. 2017 Aug:38:10-18. doi: 10.1016/j.pbi.2017.04.007. Epub 2017 Apr 28.

Abstract

Recognition of microbe- and danger-associated molecular patterns (MAMPs and DAMPs, respectively) by pattern recognition receptors (PRRs) is central to innate immunity in both plants and animals. The plant PRRs described to date are all cell surface-localized receptors. According to their ligand-binding ectodomains, each PRR engages a specific coreceptor or adaptor kinase in its signaling complexes to regulate defense signaling. With a focus on the coreceptor RLK BRI1-ASSOCIATED RECEPTOR KINASE1 (BAK1) and related SOMATIC EMBRYOGENESIS RECEPTOR KINASEs (SERKs), here we review the increasing inventory of BAK1 partners and their functions in plant immunity. We also discuss the significance of autoimmunity triggered by BAK1/SERK4 disintegration in shaping the strategies for attenuation of PRR signaling by infectious microbes and host plants.

Publication types

  • Review

MeSH terms

  • Arabidopsis / immunology*
  • Arabidopsis / metabolism
  • Arabidopsis Proteins / genetics
  • Arabidopsis Proteins / immunology*
  • Arabidopsis Proteins / metabolism*
  • Plant Immunity / genetics
  • Plant Immunity / physiology
  • Protein Serine-Threonine Kinases / genetics
  • Protein Serine-Threonine Kinases / metabolism
  • Receptors, Pattern Recognition / genetics
  • Receptors, Pattern Recognition / metabolism

Substances

  • Arabidopsis Proteins
  • Receptors, Pattern Recognition
  • BAK1 protein, Arabidopsis
  • Protein Serine-Threonine Kinases