Fig. 10

Simplified scheme showing limonoid biosynthesis in neem tree being contributed by isoprene units formed through MVA pathways evident from the labeling experiment with 13C glucose. C-seco and ring intact limonoid are represented in yellow and green boxes respectively. (Alternate isoprene units of the limonoid skeleton are shown in pink and blue, dotted arrow shown here are the uncharacterized steps in the pathway)