MORPHOLOGICAL AND ANATOMICAL CHARACTERISTICS OF LEAVES OF CHRYSANTHEMUM GARDEN PERENNIAL VARIETIES BELGO AND PECTORAL

• Main Authors: О. V. Polonets, S. М. Marchyshyn, L. М. Sira, О. L. Demydyak
• Format: Article
• Language: English
• Published: Ukrmedknyha Publishing House 2018-06-01
• Series: Фармацевтичний часопис
• Subjects: хризантема садова багаторічна; морфолого-анатомічна будова; листки.
• Online Access: https://ojs.tdmu.edu.ua/index.php/pharm-chas/article/view/9030

The aim of the work. The aim of our research was to determine the macroscopic and microscopic diagnostic features of Chrysanthemum×Hortorum Bailey leaves of Belgo and Pectoral variants. Materials and Methods. To study the morphological structure of raw materials, a magnifying glass and a binocular microscope were used. The anatomical structure of the leaves was studied according to the generally accepted pharmacopoeial techniques of microscopic analysis. Microdiagnostic features were fixed using a "Granum" microscope with a magnification of ×40, ×100, ×400 times. The photos were taken with Sony DSC-W80 camera. Results and Discussion. The leaves of both varieties of chrysanthemums are with long petioles, trilobate or pinnate-lobed, separated or dissected, serrate on the edge. The upper side of the leaf is green, pubescent, lower - grayish-green due to abundant pubescence, with protruding veins. The structure of the leaf blade is dorsoventral, amphistomatic. Mesophile with unstable differentiation of columnar chlorenchyma. The thickness of the leaf plate, depending on the number of layers and mesophilic cell sizes, varies under the influence of various environmental factors and conditions of cultivation. The epidermal complex of the lower and upper sides of the plate consist of the basic cells, the walls of which are thin, wavy; stomata of anomocytic type; curved T-shaped live hairs and essential oil glands.  A distinctive feature of the Pectoral variant from the Belgo variant is the presence of a larger number of big secretive glands with an oval two-row tiered head. The main area of the petiole is parenchyma, its subepidermal layers are colenchymatose. The conductive system of petioles is represented by a semi-round central bundle and lateral bundle. Central bundle is collateral. Lateral bundles are collateral or centroxylem. Conclusions. The morphological and anatomical structure of leaves of chrysanthemums garden perennials of Belgo and Pectoral variants has been investigated, the main common and distinct diagnostic features have been detected.