Biflavonoids from the seed testa of cycadales |
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Authors: | PA Gadek |
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Institution: | School of Botany, University of New South Wales, Kensington, N.S.W. 2033, Australia |
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Abstract: | Biflavonoid patterns from ethanolic extracts of the brightly coloured testa of eight species of Cycadales have been determined. Species from the genus Macrozamia are characterized by the occurrence of cupressuflavone- and amentoflavone-based patterns, while the Cycas species contain only amentoflavone-based patterns. The other species from the genera Encephalartos, Lepidozamia, and Zamia contain a very minor or no detectable biflavonoid component. This is the first report of the occurrence of cupressuflavone in the Cycadales. |
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Keywords: | Zamiaceae Cycadaceae biflavones amentoflavone cupressuflavone chemotaxonomy |
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