Figure 5.

Proposed cinnamaldehyde biosynthetic pathway in microalgae. Black dotted lines show multiple enzymatic steps involved. Black arrows represent enzymatic, or transport steps supported by direct experimental evidence. Gray dashed arrows represent hypothesized steps. Enzyme abbreviations: CM, chorismate mutase; PPA-AT, prephenate aminotransferase; ADT, arogenate dehydratase; pCAT, plastidial cationic amino acid transporter; PDT, prephenate dehydratase; PPY-AT, phenylpyruvate aminotransferase; PAL, phenylalanine ammonia-lyase 4CL, 4-coumarate-CoA ligase; CCR, cinnamoyl CoA reductase. Adapted from [48,49,50,51,52]). Created in ChemDraw.