Micropropagation of Notholaena `Sun-Tuff Fern
نویسندگان
چکیده
منابع مشابه
Novel Flavonoids from the Fern Notholaena sulphurea
T he m ajo r constituent of the yellow frond exudate of the fern Notholaena sulphurea was iden tified by spectroscopic m ethods as 3 ,5 ,2 '-trihydroxy-7-m ethoxy-8-acetoxy flavone and its struc tu re was confirm ed by synthesis. This novel natural flavonoid was also de tected in the frond exudate of five o ther Notholaena species. In the yellow form of N. sulphurea, the rare 5 ,2 'dihydroxy-7,...
متن کاملA New Triterpene Acid from the Fern Notholaena grayi
Previous studies on several specimens of N. grayi Davenp. have revealed, in the white frond exudate, flavonoid aglycones which form a con stant pattern [1], It was indicated later, in a tabu lated survey of 23 specimens of N. grayi, that a fur ther unknown flavonoid occurs in every species, in small or in trace amount [2], When bulk material, collected in Arizona, was processed for the isola...
متن کاملA dihydroflavonol with taxonomic significance from the fern Notholaena sulphurea.
A new flavonoid, 2,3-trans-5,2'-dihydroxy-7,8-dimethoxy-dihydroflavonol-3-O-acetate, was isolated from the farinose coating on the lower leave surface of the fern, Notholaena sulphurea. The 2,3-cis diastereoisomer was isolated as a co-constituent. This novel acylated flavonoid is characteristic for the chemotype of N. sulphurea exhibiting yellow frond exudate. Its orrurrence underlines the affi...
متن کاملNew Triterpenes from the Frond Exudate of the Fern Notholaena vigida
The farinose coating on the lower frond surface of the fern Notholaena rigida Dav. was shown pre viously to contain the flavones scutellarein-6,7,4'trimethyl ether and scutellarein-6 ,7-dimethyl ether as well as minor amounts of apigenin, apigenin-4'methyl ether, and apigenin-7,4'-dimethyl ether [1], The exudate material also contains a considerable amount of terpenoids, one of which has been ...
متن کاملAntioxidant bibenzyl derivatives from Notholaena nivea Desv.
Four new bibenzyl derivatives were isolated, together with other known bibenzyls, by bioassay-guided fractionation of a CHCl₃-MeOH extract of Notholaena nivea Desv. (Pteridaceae) aerial parts. The structures were elucidated by NMR, ESIMS and other spectral analyses. Their antioxidative effects towards superoxide, lipidic peroxidation and the 2,2'-azino-bis-3-ethilbenzothiazoline-6-sulfonic acid...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: HortScience
سال: 1992
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.27.11.1224