The Anatomical Structure of Leaves and Thorns Plants <i>Astragalus pterocephalus</i> Bunge, Growing in Uzbekistan

Abstract

The results of a study conducted by light microscopy of the anatomical structure of the leaf and thorns of Astragalus pterocephalus growing in the natural habitat of the Amankutan Mountains of the Samarkand region (Uzbekistan) are presented. The following diagnostic features were identified: leaf-isolateral-palisade type of mesophyll leaf; thick-walled outer walls of the epidermis; the outline of epidermal cells is rectilinear, the projection is polygonal; amphystomatic leaves; submerged numerous stomata of hemiparacitic and anomocytic type; chlorophyll-bearing palisade and spongy parenchyma; closed collateral type of vascular bundles and more sclerified, due to sclerenchymal cells. Thorn-parenchymal-beam type of structure; thin-walled outer walls of the epidermis; under the epidermis is a lamellar collenchyma; closed collateral type of vascular bundles and more sclerified, due to sclerenchymal cells. The complex of the above features reflects the species specificity of the structure of the leaf and spines. Identified and described features that can be used in the taxonomy of the studied tribes and can serve to identify plant materials.

Comparative taxonomic investigation and its systematics application in Astragalus L. sect. Aegacantha Bunge (Fabaceae-Galegeae) from Pakistan; A phylogenetic approach

“…Caprini (Saghi et al 2015a). Therefore, some anatomical characters observed here largely agree with the finding of other species of Astragalus (Sabaii et al 2007;Agzamova et al 2020). In the present investigation, we studied here the spine anatomy for the first time in sect.…”

“…Anatomical features such as outline shape of spine were used as a best tool for identification of species within section among mostly in spiny Astragalus (Engel 1991;Agzamova et al 2020). In spiny Astragalus species the spine was developed from petiole, terminal leaflets replaced through a spine (Haddad and Barnett 1989).…”

Сhromatographic Analysis of Сyclosiversioside F

“…Растение A. pterocephalus было заготовлено в августе 2019 года в Кашкадарьинской области Республики Узбекистан, бассейн реки Кашкадарья, в окрестностях села Джауз. Провели анатомо-морфологическое исследование надземных органов растения [21].…”