Türkiye'de Yetişen Helleborus L. Türleri Üzerinde Farmasötik Botanik Yönünden Araştırmalar
نویسندگان
چکیده
منابع مشابه
Pharmacognostical and Phytochemical Studies of Helleborus niger L Root
BACKGROUND Helleborus niger L (Ranunculaceae) is used Ayurvedic and Unani systems and other herbal medicine systems. The roots of H. niger have a good medicinal value. AIMS To conduct a pharmacognostical and phytochemical study of H. niger. MATERIALS AND METHODS The pharmacognostical studies on roots including parameters such as taxonomical, macroscopic, microscopic characters, physico-chem...
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متن کاملThe ultrastructure and ontogeny of pollen in Helleborus foetidus L. IV. Pollen grain maturation.
The final stages of Helleborus pollen-grain ontogeny, which culminate in maturation and germination of the grain, have been investigated at the ultrastructural level. Following the deposition of primary and secondary exine, and during the early stages of intine formation, the microspore passes through a vacuolate phase, in which the cytoplasm appears devoid of most organelles other than the pro...
متن کاملReproductive Development of the Christmas Rose (Helleborus niger L.): The Role of Plant Hormones
Christmas rose (Helleborus niger L.), a native perennial of southeastern Europe, is characterized by an interesting phenomenon in the world of flowering plants: after fertilization perianth becomes green, photosyntheticaly active, and persists during fruit development. Removal of the reproductive organs (anthers and carpels) affects the elongation and vascular anatomy of flower stalk, prevents ...
متن کاملCytokinins in the perianth, carpels, and developing fruit of Helleborus niger L.
Reproductive development in the Christmas rose (Helleborus niger L.) differs from that in commonly investigated model plants in two important aspects: (i) the perianth develops a photosynthetic system, after fertilization, and persists until seed ripening; and (ii) the ripe seed contains an immature embryo which continues to mature off the mother plant. The possible roles of cytokinins in these...
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ژورنال
عنوان ژورنال: Ankara Universitesi Eczacilik Fakultesi Dergisi
سال: 1984
ISSN: 1015-3918
DOI: 10.1501/eczfak_0000000100