F5H — Brassica napus

Summary

BnF5H (DARMORV10_A03P64120.1) on chromosome A03 of oilseed rape encodes a cytochrome P450 family 84A protein with ferulate 5-hydroxylase activity, a monooxygenase that binds heme and iron. This gene is associated with lignin anabolism and composition, particularly syringyl lignin biosynthesis, as well as phenylpropanoid and monolignol biosynthesis. It is linked to cell wall modification, cell-wall enzymatic saccharification efficiency, sugar release from cell walls, and cell wall digestibility. Associations also include stem strength, drought tolerance, root morphology and lateral root development, plant growth, disease resistance, sinapine content, fruit ripening, defense response, response to UV-B, and downregulation of chlorophyll anabolism. The encoded protein localizes to the endoplasmic reticulum membrane and plasma membrane. Related genes in other species are linked to male sterility, biomass saccharification efficiency, and altered phenylpropanoid metabolism.