Molecular mechanisms of the interaction between pathogens and plants includ
e elicitor perception, triggering the cyclic adenylate, MAP kinase, calcium
, phosphatidic acid, lipoxygenase, NADPH oxidase, and NO signaling pathways
, amplifying the elicitor signals and their transduction to transcription f
actors, expressing defense genes, and developing plant defense responses. T
he enhancing or suppressing effects of the components of one signaling path
way on the enzymes of another signaling pathway are discussed.