Cross talk between signaling pathways in pathogen defense

Curr Opin Plant Biol. 2002 Aug;5(4):325-31. doi: 10.1016/s1369-5266(02)00275-3.


Plant defense in response to microbial attack is regulated through a complex network of signaling pathways that involve three signaling molecules: salicylic acid (SA), jasmonic acid (JA) and ethylene. The SA and JA signaling pathways are mutually antagonistic. This regulatory cross talk may have evolved to allow plants to fine-tune the induction of their defenses in response to different plant pathogens.

Publication types

  • Review

MeSH terms

  • Cyclopentanes / metabolism
  • Ethylenes / metabolism
  • Immunity, Innate / physiology
  • Oxylipins
  • Plant Diseases / microbiology*
  • Plants / metabolism*
  • Plants / microbiology
  • Salicylic Acid / metabolism
  • Signal Transduction / physiology*


  • Cyclopentanes
  • Ethylenes
  • Oxylipins
  • jasmonic acid
  • ethylene
  • Salicylic Acid