Flavonoids of Penthorum sedoides |
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Authors: | Douglas E. Soltis Bruce A. Bohm |
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Affiliation: | Department of Biology, University of North Carolina, Greensboro, NC 27412, U.S.A.;Botany Department, University of British Columbia, Vancouver, B.C. V6T 1W5, Canada |
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Abstract: | In an attempt to elucidate the familial affinities of Penthorum, the flavonoids and other phenolic compounds of P. sedoides were examined. The species is characterized by a relatively simple array of kaempferol and quercetin 3-O-mono-, di- and triglycosides. Flavonoid variation was detected between populations. Also present was a group of phenolic compounds that gave positive color reactions for the existence of gallic acid-like components. Although structures were not determined for these compounds, the presence of gallic acid-like moieties in two of the compounds was confirmed by 1H NMR. The array of these compounds and flavonoids detected in P. sedoides does not readily support inclusion of Penthorum in the Saxifragaceae. |
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Keywords: | Crassulaceae Penthoraceae Saxifragaceae flavonoids complex phenolic compounds chemotaxonomy |
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