Figure 1From: Identification and characterisation of CYP75A31, a new flavonoid 3'5'-hydroxylase, isolated from Solanum lycopersicumSimplified scheme of the phenylpropanoid pathway in tomato. The first committed enzyme in the flavonoid pathway is CHS. The reaction indicated in blue has been proven in vitro in this study, however it is unclear if it occurs in planta. Enzymes are given in bold italics. PAL: phenylalanine ammonia-lyase. C4H: cinnamate 4-hydroxylase. 4CL: 4-coumarate: CoA ligase. CHS: chalcone synthase. CHI: chalcone isomerase. F3H: flavanone 3-hydroxylase. FLS: flavonol synthase. F3'H: flavonoid 3'-hydroxylase. F3'5'H: flavonoid 3'5'-hydroxylases. DFR: dihydroflavonol 4-reductase. ANS: anthocyanidin synthase. UFGT: UDP glucose flavonoid 3-O-glucosyl transferase.Back to article page