Fig. 8. Transverse sections of stem and leaf showing vegetative structure. (A) wild-type stem with central pith (p). (B) 35S::JAG stem is larger in diameter than wild type with numerous finger-like projections and central pith (p). (C) Wild-type leaf showing upper and lower epidermis (arrowheads), palisade mesophyll (pm), spongy mesophyll (sm) and vascular bundle composed of phloem cells (black arrow) and xylem cells (white arrow). Adaxial surface of leaf is at the top and abaxial surface is at the bottom. (D) Close-up image of finger-like projection of the 35S::JAG stem with epidermis (arrowhead), phloem (black arrow) and xylem (white arrow). (E,F) Region of wild-type (E) and 35S::JAG (F) stem with outer epidermis (arrowhead), cortex (c), phloem (black arrow) and xylem (white arrow). Scale bar: 100 µm (A); 200 µm (B); 100 µm (C-F).