Potri.002G146400 Affects the Phenylpropanoid Pathway and Lignin Biosynthesis.
(A) Phloroglucinol-HCl staining of stems from transgenic Populus plants overexpressing Potri.002G146400. Ectopic lignin depositions in different tissues are illustrated by black arrows. ep, epidermis; pp, phloem fibers; xy, secondary xylem; pi, pith cells. Bar = 200 µm.
(B) Changes of phenylpropanoid pathway metabolites in two independent Potri.002G146400 overexpression plants. Up-regulated metabolites in both transgenic lines are in red, based on the metabolism data in Supplemental Table 1.