COUMARINS FROM DAPHNE AXILLIFLORA (KEISSL.) POBED. AND THE ANATOMICAL CHARACTERISTICS OF ITS LEAVES AND STEMS.

Georgian Med News

1Tbilisi State Medical University, Iovel Kutateladze Institute of Pharmacochemistry, Tbilisi, Georgia; 2Laboratoire LASEVE, Université du Québec à Chicoutimi, Département des Sciences Fondamentales, Chicoutimi, Québec, Canada.

Published: March 2021

AI Article Synopsis

  • - The study focused on identifying stable diagnostic traits and phytochemical composition of the plant Daphne axilliflora, highlighting its unique microstructural features.
  • - Key diagnostic characteristics included the plant’s leaf structure, such as its glabrous surface and specific stomatal types, along with various vascular and wood details.
  • - The phytochemical analysis revealed the presence of terpene and phenolic compounds, specifically isolating two well-known coumarins, daphnin and daphnetin.

Article Abstract

The aim of the study was to determine the stable diagnostic traits of a Caucasian endemic plant Daphne axilliflora (Keissl.) Pobed. and study its phytochemical composition. The following stable diagnostic characteristic were identified during the microstructural analysis: leaf surface glabrous, hypostomatic, dorsoventral; epidermal cells chaotic; curved with curved walls on both the upper and lower epidermis; stomata anomocytic; well visible chloroplasts, rhomboid and needle shaped crystals in lower leaf epidermis; leaf vascular bundles reverse-collateral; vascular system monocyclic, bilateral; wood diffuse-porous; xylem parenchyma is apotracheal, scanty metatracheal; vessel walls are predominantly characterized by spiral and pitted thickening; collenchyma lamellar; radial rays in single rows, heterogeneous. Phytochemical analysis showed the presence of terpene and phenolic substances, including coumarins. Two well-known coumarins (daphnin and daphnetin) were isolated and identified.

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