KAT1 — Daucus carota subsp. sativus

Summary

DCAR_027375 (DcKAT1) on carrot chromosome 8 encodes a thiolase family protein with 3-ketothiolase activity and protein binding capability. The gene is associated with fatty acid beta-oxidation, glyoxysome organization, jasmonic acid and green leaf volatile biosynthesis, somatic embryogenesis, and response to wounding. It is linked to upregulation of abscisic acid-mediated signaling and phenylacetate breakdown. The product localizes to multiple cellular compartments including the ER, mitochondria, nucleolus, cytoplasm, and plant-type vacuole. Associations with stomatal regulation, potassium ion transport and channel activity, salt tolerance, water stress response, membrane potential modulation, and guard cell functioning have been noted. Additional connections include flavonoid biosynthesis, lipid metabolism, leaf senescence, inflorescence development, and postgerminative growth. Studies of related genes in other species link the family to inward-rectifier potassium channel activity, guard cell ion flux, and potassium uptake.