Fig. 3From: Pathways of extra- and intercellular diffusion of colored substances in the blackened xylem of Diospyros kakiLight micrographs of transverse (a, d), radial (b, e, f) and tangential (c, g, h, i) sections of gray regions of samples of D. kaki wood. f, h Higher-magnification views of the enclosed areas in e, g, respectively. White arrowheads indicate colored substances in pits. White arrows indicate colored substances on interior surfaces of intercellular spaces within rays. AP: axial parenchyma cell; F: wood fiber; RP: ray parenchyma cell; V: vessel element. Scale bars = 100 μm in a–d, e, g; 5 μm in f, h; 25 μm in iBack to article page