منابع مشابه
Ubisch bodies and pollen ontogeny in Oxalis articulata Savigny.
The correlation between the ontogeny of Ubisch bodies and pollen development in Oxalis articulata was studied with Transmission Electron Microscopy (TEM). The ultrastructural changes observed during the different stages of development in the tapetal cells are related to Ubisch bodies, sporopollenin and pollen-kitt formation. The pro-orbicules have the appearance of lipid globuli and their forma...
متن کاملArtemisia annua L
Shoot cultures of Artemisia annua L. were cultivated in three different micropropagation systems: an ultrasonic nutrient mist bioreactor (UNMB), a modified ultrasonic nutrient mist bioreactor (MUNMB) and solid culture in Magenta boxes. The shoots cultivated in the UNMB and MUNMB showed excellent growth. The dry weight increase (35 times) of shoot cultures in the MUNMB was higher than those (25 ...
متن کاملPharmacognostical Studies on Artemisia Annua
With increasing demand in the field of herbal medicines and cosmetics, it has become necessary and pertinent to probe into the area of systematic knowledge about herbal drugs. There is a need for the application of this knowledge in authentification, detailed study and practical utilization of crude drugs. The present paper deals with the taxonomy, anatomy, powder study pertaining to organolept...
متن کاملAnnual Wormwood ( Artemisia annua L
Uses Traditional and Artisanal Used traditionally in China to treat fevers and hemorrhoids. Used in the crafting of aromatic wreaths, as a flavoring for spirits such as vermouth, and as a source of essential oils for the perfume industry.
متن کاملThe classical Ubisch bodies carry a sporophytically produced structural protein (RAFTIN) that is essential for pollen development.
Pollen fecundity is crucial to crop productivity and also to biodiversity in general. Pollen development is supported by the tapetum, a metabolically active sporophytic nurse layer that devotes itself to this process. The tapetum in cereals and a vast majority of other plants is of the nonamoeboid type. Unable to reach out to microspores, it secretes nutrients into the anther locule where the m...
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ژورنال
عنوان ژورنال: Grana Palynologica
سال: 1963
ISSN: 0374-793X
DOI: 10.1080/00173136309437855