Estudo anatômico e histoquímico da espécie Libidibia ferrea L.P. Queiroz cultivada em comunidades rurais do município de Itacoatiara - AM

Abstract

The Fabaceae family has about 650 genera and approximately 18,000 species, representing one of the largest families of Angiosperms, one of which is the species Libidibia ferrea LP Queiroz, popularly known as jucá, is a plant used by traditional populations of medicinal form, being used , mainly, its fruits and the bark of its trunk. The objective of this study was to identify the anatomical and histochemical characteristics of the L. ferrea species in order to support future phytochemical work. For this the anatomy of the leaflet, pulvinus and petiole was described; the different types of tissues present in the structures were characterized; stomata were classified as well as detecting chemicals present in cells. The leaves were collected from tree individuals in the community of Santa Tereza and Monte Cristo in the Arari region in the municipality of Itacoatiara - AM. Three samples of three individuals were collected and fixed in FAA at 70%, for later analysis. For the anatomical analysis by light microscopy, the sections were clarified with 20% sodium hypochlorite solution and stained with safrablau in glycerinated gelatin. For the histochemical tests parts of the leaf sections were submitted to reagents and photographed in order to document the original staining of the analyzed tissues. In cross section we characterized anphysomatic leaflets with paracytic type stomata that are common to this family, in addition to identifying unicellular tectonic trichomes on both faces of the epidermis, which is common to this genus, but can also be found uni and multicellular . Histochemically the cuts reacted to total phenolic compounds, alkaloids, lignin, starch, lipids, tannins and proteins and alkaloids. This analysis may support pharmacological and taxonomic studies.