Figure 1From: Characterization of proanthocyanidin metabolism in pea (Pisum sativum) seedsProanthocyanidin biosynthetic pathway with transcript levels of each biosynthetic gene estimated by 454 read numbers, and structures of proanthocyanidins and their derivatized products. A) Proanthocyanidin biosynthetic pathway. PAL, phenylalanine ammonia lyase; C4H, cinnamate 4-hydroxylase; 4CL, 4-coumarate:CoA ligase; CHS, chalcone synthase; CHI, chalcone isomerase; F3'5'H, flavonoid 3'5'-hydroxylase; F3'H, flavonoid 3'-hydroxylase; F3H, flavanone 3-hydroxylase; DFR, dihydroflavonal 4-reductase; ANS, anthocyanidin synthase; ANR, anthocyanidin reductase; LAR, leucoanthocyanidin reductase. Values in brackets indicate the read numbers from 454-pyrosequencing. B) C4-C8 linkage in PA-phloroglucinol adduct structures.Back to article page