Fig. 5
From: Effects of biogenic silver and iron nanoparticles on soybean seedlings (Glycine max)
Effects of metallic nanoparticles in the expression of lignification-related genes that encode the enzymes phenylalanine ammonia lyase (PAL), cinnamate 4-hydroxylase (C4H), cinnamyl alcohol dehydrogenase (CAD), peroxidase 2 (POD2), peroxidase 4 (POD4) and peroxidase 7 (POD7) of soybean roots (n = 5). The red dotted line represents the quantification of negative control (soybean roots not exposed to the nanoparticles)