New Information of the Anatomy and Phytochemical Screening of Pentaclethra macroloba (Willd.) Kuntze (Caesalpinioideae-Leguminosae) Seeds

Figure 6

Histochemical tests applied to Pentaclethra macroloba (Willd) Kunze seed cotyledons: (a) cotyledon mesophyll in white (LM); (b) positive reaction for total lipids with Sudan black evidenced, droplets in the secretory epithelium of the cavity () (LM); (c) positive reaction for total lipids with Sudan III (LM); (d) total lipids in the cotyledon mesophyll (LM); (e) positive reaction for acid lipids (LM); (f) positive reaction for terpenes, showing essential oil (LM); (g) cavity secreting terpenes (LM); (h) phenolic compounds in the lumen and in the secretory epithelium of the cavity, detected by the SFF fixative (LM); (i) phenolic idioblasts detected by ferric chloride (LM); (j) pectic compounds in cell walls (LM); (k) idioblasts with acidic mucilage () (LM); (l) neutral polysaccharides (LM); (m) starch (LM); (n) total proteins; (o) alkaloids (LM). Caption: al: alkaloids; cf: phenolic compounds; cp: protein bodies; li: lipids; pn: neutral polysaccharides. Bar: 50 μm (b, c, d, e, f, g, h, i, j, k, l, m, n, o); 100 μm (a).