ThesisAn ARABIDOPSIS CLASS III Peroxidase, AT2G34060, is expressed in protoxylem of one to eight day old seedlings and involved in restriction of root lengthGrewal, MandeepHydrophobic polymer lignin provides water proofing and structural integrity to cell wall which help plants adapt to terrestrial environment. Secretory peroxidases are thought to generate monolignol radicals that polymerize to form lignin. In Arabidops . . .