LAC7 — Phaseolus vulgaris

Summary

PHAVU_010G005900, designated PvLAC7, encodes a laccase enzyme (p-diphenol:oxygen oxidoreductase) with copper-binding and redox activity, belonging to the multicopper oxidase family. In French bean (Phaseolus vulgaris) on chromosome 10, it is associated with lignin anabolism and breakdown, response to copper, and the transition from vegetative to reproductive phase. The protein localises to the apoplast and extracellular space. PvLAC7 is associated with flowering time, pollen development, and root hair development. Related genes in other species are linked to lignin content, flowering time traits, and drought tolerance, though these associations are not yet established for PvLAC7 itself.