Answer
1) Plants secrete hormones such as salicylic acid and jasmonic acid, which are toxic to many pathogens.
2) Signal transduction pathways result in alterations in gene expression, including genes that encode the production of antimicrobial materials called phytoalexins.
Work Step by Step
1) Plants secrete hormones such as salicylic acid and jasmonic acid, which are toxic to many pathogens.
2) Signal transduction pathways result in alterations in gene expression, including genes that encode the production of antimicrobial materials called phytoalexins.