Foliar flavonoids of nine species of Bauhinia
Foliar flavonoids of nine species of Bauhinia were isolated and identified. All the compounds correspond to glycosides derived from kaempferol, quercetin, isorhamnetin and myricetin. Derivatives of the latter aglyconhe seem to be rare in Bauhinia. Derivatives of isorhamnetin are commonly found in sp...
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Veröffentlicht in: | Revista brasileira de botânica 1999-04, Vol.22 (1), p.17-20 |
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Sprache: | eng |
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Zusammenfassung: | Foliar flavonoids of nine species of Bauhinia were isolated and identified. All the compounds correspond to glycosides derived from kaempferol, quercetin, isorhamnetin and myricetin. Derivatives of the latter aglyconhe seem to be rare in Bauhinia. Derivatives of isorhamnetin are commonly found in species of subgenus Bauhinia and were not detected in the two species of subgenus Phanera. Flavonoid patterns of species of the former subgenus are in general more complex than those of the latter.
Os flavonóides foliares de nove espécies de Bauhinia foram isolados e identificados. As substâncias correspondem a derivados glicosilados de campferol, quercetina, isoramnetina e miricetina. Os derivados desta última aglicona parecem ser raros em Bauhinia. Os glicosídios de isoramnetina são comuns em espécies do sugênero Bauhinia e não foram detectados nas duas espécies do subgênero Phanera. Os padrões flavonoídicos das espécies do subgênero Bauhinia são, em geral, mais complexos do que aqueles das espécies de Phanera. |
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ISSN: | 0100-8404 1806-9959 1806-9959 |
DOI: | 10.1590/S0100-84041999000100003 |