Figure 4

Simplified overview of the carotenoid biosynthetic pathway in fruit. Enzyme abbreviations as follows; PSY, phytoene synthase; PDS, phytoene desaturase; Z-ISO, ζ-carotene isomerase; ZDS, ζ-carotene desaturase; CRTISO, carotenoid isomerase; LCYE, lycopene ε-cyclase; LCYB, lycopene β-cyclase; BCH, β-carotene hydroxylase; CYP97, cytochrome P450-type monooxygenase 97; ZEP, zeaxanthin epoxidase; CCS, capsanthin-capsorubin synthase; NXS, neoxanthin synthase.