Metabolite profiling and pathway gene expression analysis.

(A) Graph showing the effect of the four abiotic stresses on the key metabolites. (B) qRT-PCR analysis of the phenylpropanoid pathway genes in all the stress samples. Analysis was carried out in triplicates, and standard deviation is represented with error bars. Abbreviations: PAL (Phenylalanine ammonia lyase), C4H (Cinnamte 4- hydoxylase), 4CL (4-Coumarate ligase), COMT (Caffeic acid O-methyltransferase), CCOMT (Caffeoyl CoA O-methyltransferase), C3H (Coumarate 3- hydroxylase), CS3’H (pCoumaroyl shikimate 3′-hydroxylase), CAD (Cinnamoyl alcohol dehydrogenase), CCR (Cinnamoyl CoA reductase).