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

Figure 7

Histochemical tests applied to the embryonic axis of Pentaclethra macroloba (Willd): (a) cross section showing the blank embryo (LM); (b) positive reaction for total lipids with Sudan III (LM); (c) positive reaction for total lipids with Sudan black (LM); (d) total lipids in the embryo cotyledon (LM); (e) positive reaction for acid lipids in the embryo cotyledons (LM); (f) positive reaction for terpenes, showing oil resin in the idioblasts in the procambium region (LM); (g) terpenes in the lumen of the secretory cavity, showing essential oil (LM); (h) phenolic compounds detected by the SFF fixative (LM); (i) phenolic idioblasts detected in the cortical ground meristem (LM); (j) pectic compounds in the cell walls (LM); (k) idioblasts with acidic mucilage in the medullary region () (LM); (l) neutral polysaccharides; (m) starch (LM); (n) total proteins (LM); (o) alkaloids (LM). Caption: al: alkaloids; cf: phenolic compounds; cp: protein bodies; li: lipids. Bar: 50 μm (b, c, e, f, g, h, i, k, l, n, o); 100 μm (a, d, j, m).