Fig. 3 in Specialized diterpenoid metabolism in monocot crops: Biosynthesis and chemical diversity

Fig. 3. Diterpenoid metabolism in maize. Overview of the established modular diterpenoid-metabolic network in maize (Zea mays), involving the conversion of the central precursor geranylgeranyl diphosphate (GGDP) through the combined activity of class II diterpene synthases (green boxes), class I diterpene synthases (blue boxes), cytochrome P450 monooxygenases (orange) and select other enzyme classes (pink). Representative pathway intermediates and end products are highlighted. KA, A-series kauralexins 1-4; KB, B-series kauralexins 1-4. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)