Simplified Representation of the Grapevine Phe/Polymalonate Pathway, Which Leads to the Biosynthesis of Flavonoids and Stilbenes.
Transcriptional regulation of the general enzymes is conducted by the R2R3 MYB TFs MYBPA1, MYBA, MYBF1, MYB14, and MYB15. 4CL, 4-coumarate-CoA ligase; CHS, chalcone synthase; ROMT, resveratrol-O-methyltransferase.