Figure 1
Paradermal sections of the leaf blade of Artocarpus altilis. a, b, e, f, g, h, i and j: optical microscopy; c and d: polarized light microscopy; a, c, e, f, h and i: adaxial face; b, d, g and j: abaxial face. Abbreviations: dr = druse; ep = epidermis; gt = glandular trichome; ngt = non-glandular trichome; sta = stomata. Bars: a, b, e, f, g, h, i and j = 50 µm; c and d = 20 µm.
Figure 2
Paradermal sections of the leaf blade of Artocarpus heterophyllus. a, b, e, f and g: optical microscopy; c and d: polarized light microscopy; a and c: adaxial face; b, d, e, f, and g: abaxial face. Abbreviations: dr = druse; ep = epidermis; gt = glandular trichome; ngt = non-glandular trichome; sta = stomata. Bars: a, b and e = 50 µm; c, d, f and g = 20 µm.
Figure 3
Cross-sections of the leaf blades of Artocarpus altilis and Artocapus heterophyllus. a, c, e, g, i and k: A. altilis; b, d, f, h, j and l: A. heterophyllus; a and b: scanning electron microscopy; c, d, e, f, i and j: optical microscopy; g, h, k and l = polarized light microscopy. Abbreviations: co = collenchyma; dr = druse; ep = epidermis; id = idioblast; lit = lithocyst; pp = palisade parenchyma; sp = spongy parenchyma; vb = vascular bundle. Bars: c, g, i, j, k and l = 100 µm; a, b, d and h = 200 µm; e and f = 50 µm.
Figure 4
Histochemistry of the leaf blades of Artocarpus altilis and Artocapus heterophyllus. a, b, e, i, l, o, r, t, v and w: A. altilis; c, d, f, g, h, j, k, m, n, p, q, s, u, x and y: A. heterophyllus; a, b, c and d: control; e, f, g and h: potassium dichromate (10%); i, j and k: vanillin chloridric; l, m and n: antimony trichloride; o, p and q: Sudan III; r and s: phloroglucinol; t and u: Lugol; v, w, x and y: hydrochloric acid (10 %). Abbreviations: co = collenchyma; ct = cuticle; dr = druse; ep = epidermis; id = idioblast; pa = parenchyma; pp = palisade parenchyma; scl = sclerenchyma; sp = spongy parenchyma; st = starch; xy = xylem. Bars: a, b, c, d and j = 200 µm; i, k, l, m and p = 100 µm; e, f, g, h, n, o, q, r, s, t, u, v, w, x and y = 50 µm.
Figure 5
Scanning electron micrograph and elemental composition of the druses observed in Artocarpus altilis and Artocarpus heterophyllus. a, b and c: A. altilis; d, e and f: A. heterophyllus; a and d: druses; b and e: analysis of elemental composition of the druses; c and f: percentage of the chemical constituents of the druses. Abbreviations: dr = druses.