TABLE 1.

Stress induced gene regulation and expression of secondary metabolites.

Stress (Biotic or Abiotic)		Gene expression/Metabolic response
Stress Induce gene regulation/Transcription
	Secondary metabolites/Signal molecules
	Terpenes	Phenolics		Other metabolites
	Oleanolic acid	Coumarins	Tannins	Quinic acid
	—	Lignin	Caftaric acid	Kynurenic acid
	—	Astringin	Quercetin	Salicylic acid
	—	Kaempferol	Genistein	Methyl salicylate
	—	Hydroxytyrosol glucoside	Hesperidin	Jasmonic acid
	—	—	—	Ethylene