Studies Related to Naturally Occurring Acetylene Compounds. XXIX. Preliminary Investigations in the Genus Bidens: I. Bidens radiata Thuill and Bidens ferulaefolia (Jacq.) DC..
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4-Deoxyaurone Formation in Bidens ferulifolia (Jacq.) DC
The formation of 4-deoxyaurones, which serve as UV nectar guides in Bidens ferulifolia (Jacq.) DC., was established by combination of UV photography, mass spectrometry, and biochemical assays and the key step in aurone formation was studied. The yellow flowering ornamental plant accumulates deoxy type anthochlor pigments (6'-deoxychalcones and the corresponding 4-deoxyaurones) in the basal part...
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UNLABELLED Plants take up an important place in traditional medicine and scientific research confirmed properties about their use as alternative therapy. Bidens tripartita, commonly known as Three-lobe Beggarticks, Three-part Beggarticks, Trifid Bur-marigold, is a flowering plant in the genus Bidens, family Compositae, subfamily Asteroideae. Evaluation of the chemical composition of this plant ...
متن کاملAnti-Inflammatory Constituents from Bidens frondosa.
A new polyacetylene glucoside (3E,5E,11E)-tridecatriene-7,9-diyne-1,2,13-triol-2-O-β-D-glucopyranoside (1), a new phenylpropanoid glucoside 2'-butoxyethylconiferin (2), and a new flavonoid glycoside 8,3',4'-trihydroxyflavone-7-O-(6''-O-p-coumaroyl)-β-D-glucopyranoside (3), have been isolated from Bidens frondosa together with fifty-three known compounds 4-56. The structures of these compounds w...
متن کاملAntioxidant and Anti-proliferative Activities of Flavonoids from Bidens pilosa L var radiata Sch Bip
Purpose: To investigate the chemical composition of Bidens pilosa L. var. radiata. Sch Bip. (BP), as well as its antioxidant and anti-proliferative activities. Methods: The whole herb of BP was extracted with 95 % ethanol, which was then partitioned sequentially with petroleum ether, ethyl acetate and n-butyl alcohol to obtain petroleum ether, ethyl acetate (EE-BP), n-BuOH and water fractions. ...
متن کاملArea and the rapid radiation of Hawaiian Bidens (Asteraceae)
Remote islands have played a central role in the development of evolutionary theory, particularly with regard to the factors responsible for speciation and adaptive radiation (Darwin, 1859; Lack, 1947; Carlquist, 1974; Schluter, 2000). The Hawaiian Islands (about 4000 km from the nearest land mass) are noteworthy in this regard, as adaptive radiation is Department of Biology, Stanford Universit...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1961
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.15-1885