Studies on the roles of 4-coumarate:coenzyme A ligase and 4-coumarate 3-hydroxylase in lignin biosynthesis in rice

概要

1. The overlapping but divergent roles of Os4CL3 and Os4CL4 in lignin biosynthesis were
demonstrated. Os4CL3 contributes more broadly to the biosynthesis of the major monolignoltype lignin monomers, i.e., both the conserved non-γ-p-coumaroylated and grass-specific γ-pcoumaroylated monolignols, whereas Os4CL4 contributes primarily to the biosynthesis of the
non-γ-p-coumaroylated monolignols. In addition, Os4CL4, but not Os4CL3, plays a key role
in the biosynthesis of tricin used for lignification. ...