LAC4 — Phaseolus vulgaris

Summary

PHAVU_008G107100, designated PvLAC4, encodes a laccase enzyme with p-diphenol:oxygen oxidoreductase activity, copper binding and redox functions, belonging to the multicopper oxidase family. It is localised to the apoplast, plant-type cell wall and extracellular space. The gene is associated with lignin breakdown and anabolism, as well as secondary cell wall biogenesis. Phenotypic associations include lignin biosynthesis, lignification, lignin deposition, fiber development, plant height, seed yield, saccharification yield and cadmium tolerance. Related genes in other species link the family to defense response, herbivore defense, xylem transport, lignin polymerization and the syringyl/guaiacyl lignin unit ratio.