Figure 1From: Functional characterization of cinnamyl alcohol dehydrogenase and caffeic acid O-methyltransferase in Brachypodium distachyonA simplified diagram of the phenylpropanoid pathway for lignin biosynthesis. Cinnamyl alcohol dehydrogenase (CAD) converts the cinnamyl aldehydes (p-coumaraldehyde, coniferaldehyde and sinapaldehyde) to alcohols, the monomeric precursors of H, G, and S lignin. Caffeic acid O- methyltransferase (COMT) catalyzes the methylation of alcohol/aldehyde precursors to S and G lignin. amiR-cad1 impairs CAD activity; amiR-comt4 impairs COMT activity.Back to article page