AI Article Synopsis
- The study used LC-DAD-MS/MS to analyze the Brazilian medicinal plant Bidens gardneri, identifying eleven phenolic compounds.
- The research isolated multiple flavanones, including three novel compounds with specific structural characteristics.
- The absolute configurations of two flavanones were determined to be 2S using circular dichroism analysis.
Article Abstract
LC-DAD-MS/MS analysis of the Brazilian medicinal plant Bidens gardneri Bak. (Asteraceae) results in identification of eleven phenolic compounds. HRESIMS, MS/MS and UV data analyses, with phytochemicals isolation guided by MS data, results in flavanones-(-)-4'-methoxy-7-O-β-D-glucopyranosyl-8,3'-dihydroxyflavanone; (-)-7-O-(6″-E-p-coumaroyl)-β-D-glucopyranosyl-8,3',4'-trihydroxyflavanone; and (-)-4'-methoxy-7-O-(6″-acetyl)-β-D-glucopyranosyl-8,3'-dihydroxyflavanone being identified-together with four known compounds. The absolute configurations of two of the flavanones were determined as 2S via circular dichroism.
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| http://dx.doi.org/10.1016/j.phytochem.2013.09.024 | DOI Listing |
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Article Synopsis
- The study used LC-DAD-MS/MS to analyze the Brazilian medicinal plant Bidens gardneri, identifying eleven phenolic compounds.
- The research isolated multiple flavanones, including three novel compounds with specific structural characteristics.
- The absolute configurations of two flavanones were determined to be 2S using circular dichroism analysis.
The effects of phosphate supply on growth of plants from the Brasilian Cerrado: experiments with seedlings of the annual weed, Bidens gardneri Baker (Compositeae) and the tree, Qualea grandiflora (Mart.) (Vochysiaceae).
Oecologia
January 1990
Department of Botany, University of Edinburgh King's Buildings, EH9 3JH, Edinburgh, Scotland.
Plants of the cerrado tree species Qualea grandiflora and the annual herb Bidens gardneri were grown from seed in controlled environment rooms at 30/20° C and 12 hour photoperiod. Seedlings were grown in pots or small tubes containing sand and provided with various amounts of mineral solutions based on the formulation of Hoagland and Arnon but with the phosphate content modified in some cases. In a long-term experiment lasting 213 days, plants supplied with full strength Hoagland's solution all died but plants of Qualea given 1/10 strength solution survived, although they grew very slowly.
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