CYP707A1 — Brassica oleracea

Summary

BoCYP707A1, located on chromosome 7 of cabbage (Brassica oleracea), encodes a cytochrome P450 family protein with abscisic acid 8'-hydroxylase activity, and binds heme and iron. This gene is associated with abscisic acid breakdown and signaling, release of seed from dormancy, seed germination, and fruit ripening. It is linked to chlorophyll breakdown, leaf senescence, and responses to abiotic stimuli including heat, hypoxia, red or far-red light, and thermal stimulus. Associations with stomatal density, stomatal closure, stomatal conductance, transpiration rate, and drought stress tolerance have been observed, as well as connections to lateral root emergence, postgermination growth, and seed thermoinhibition. The encoded protein localizes to the ER membrane and membrane. Studies of related genes in other species link the family to drought tolerance, ABA accumulation, and stomatal responses to CO2 and light.