CCD8 — Arabidopsis thaliana

Summary

AT4G32810, also known as CCD8 or MAX4, encodes a carotenoid cleavage dioxygenase with 9-cis-10'-apo-beta-carotenal cleavage dioxygenase and all-trans-beta-apo-10'-carotenal 13,14-cleaving dioxygenase activities (EC 1.13.11.69, EC 1.13.11.70). This enzyme localizes to the chloroplast stroma and is associated with strigolactone metabolism, carotene and xanthophyll breakdown, and hormone metabolism. The gene is linked to shoot and lateral branching, axillary bud growth, root system architecture, leaf senescence, flowering time, and responses to nitrogen and phosphate deficiency. Associations also include drought tolerance, stomatal resistance, callus induction, somatic embryogenesis, and secondary growth. Related genes in other species are linked to seed size and number, flower diameter, fruit weight, adventitious root development, and salt tolerance.