Fig. 1
From: Relationships between tree size and reaction wood formation in 23 Japanese angiosperms
Light microphotographs of transverse sections after zinc chloride–iodine reaction, Mäule reaction, and phloroglucinol–HCl reaction on the upper and lower sides of inclined stems or branches. Arrowheads indicate gelatinous (G)-layer. In the present study, G-layer was defined as the innermost layer of wood fibers stained with zinc chloride–iodine reagent, but not with Mäule and phloroglucinol–HCl reagents. LP lower side, UP upper side, scale bar 30 µm