LAC1 — Daucus carota subsp. sativus

Summary

DCAR_014728 (DcLAC1) on carrot chromosome 4 encodes a laccase, a copper-containing oxidase with p-diphenol:oxygen oxidoreductase activity, copper binding, and redox activity. The product belongs to the multicopper oxidase family and is localised to the Casparian strip, apoplast, and extracellular space. DcLAC1 is associated with lignin breakdown and has been linked to abiotic stress tolerance in carrots. Studies of related laccase genes in other species connect the family to lignin polymerisation and stress responses, though these roles are not yet established for DcLAC1 itself. The gene is also associated with an abiotic plant stress response trait.