Fig. 1.
Xanthophyll biosynthetic pathway in Arabidopsis. LCYb, lycopene β-cyclase; LCYe, lycopene ε-cyclase; BCH1/2, β-ring hydroxylase1/2; CYP97A3, heme-containing cytochromes P450 monooxygenases A3; CYP97B3 heme-containing cytochromes P450 monooxygenases B3; CYP97C1, heme-containing cytochrome P450 monooxygenases C1; ZEP, zeaxanthin epoxidase