Figure 1.

Scanning electron microscopy demonstrating unique features in soybean root morphology. The root epidermis, cortex and vascular cylinder with low magnification indicated by green arrow, blue arrow and red circle respectively (A, B; 50 µm). High magnification of root tissues showing contraction of root indicated by red rectangular (C, D; 40 and 20 µm), the presence of occluding materials indicated by red arrow in the root cortex (E; 40 µm), and the presence and distribution of biogenic crystals indicated by yellow arrow within the vascular cylinder of soybean root (F–I; 5-10 µm).