Ontogeny and histochemistry of dimorphic tapetum in Tecoma stans anthers
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چکیده
منابع مشابه
Antinociceptive and Anti-inflammatory Activity of Tecoma Stans Leaf Extracts
Tecoma stans (Bignoniaceae) is used in the treatment of diabetes, stomach pains, rheumatism, diuretic, vermifuge and tonic in traditional medicine. The present study has been design to evaluate antinociceptive and anti-inflammatory activities of alcohol and aqueous extracts of Tecoma stans leaves and to determine total phenolic and flavonoid contents. Both extracts shows dose dependent activity...
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Prolonged colchicine treatment induced the formation of numerous cytoplasmic para-crystals in tapetal cells of wheat anthers containing germ line cells at pre-meiotic mitosis or early pre-meiotic interphase. Such paracrystals were up to 8 microns long and 0.7 microns in diameter, and filled up to about 8% of the volume of the cytoplasm. Paracrystals were not bounded by a membrane. A paracrystal...
متن کاملRole of phenolics and boron in reproductive success in seasonally transient sterile Tecoma stans L.
Quantitative and qualitative analysis of phenolics and boron in stigma of transient sterile Tecoma stans L. during seedless (May-July), partially seedbearing (August-November, April) and seedbearing periods (December-March) was made. UV absorption profile of stigmatic exudates indicated the presence of simple phenolics. Total phenolics were higher in stigma during seedless period. Thin layer ch...
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Human have been constantly using plants and plant products to overcome many diseases. The antioxidant property of the plant sources is studied to obtain an efficacious drug against cancer. The objectives of the present study is to evaluate the antioxidant and cytotoxic activity of the Tecoma stans extracts against lung cancer cell line in comparison with vincristine drug. The antioxidant activi...
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Air dried flowers of Nerium oleander and Tecoma stans have been investigated for their polyphenolics. The pigments have been found to myricetin and rutin respectively which were characterized by chromatography and spectral studies. These pigments were screened for their antibacterial and antifungal activity against different organisms. It was ascertained that the ethyl acetate fractions of flow...
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ژورنال
عنوان ژورنال: Bulletin de la Société Botanique de France. Actualités Botaniques
سال: 1978
ISSN: 0181-1789
DOI: 10.1080/01811789.1978.10826312