Figure 5.

Biosynthesis of plant anthocyanidins. PAL—phenylalanine amino-lyase, C4H—cinnamate 4-hydroxylase, 4CL—4-coumarate: CoA ligase, CHS—chalcone synthase, CHI—chalcone isomerase, F3H—flavanone 3-hydroxylase, F3′H—flavonoid 3′-hydroxylase, F3′5′H—flavonoid 3′,5′-hydroxylase, DFR—dihydro flavanol 4-reductase, ANS—anthocyanidin synthase.