Distribution and evolution of flavonoids in the monocotyledons

Williams, Christine A.; Harborne, Jeffrey B.

doi:10.1007/978-1-4899-2913-6_15

Cited by 16 publications

(6 citation statements)

References 90 publications

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“…The flavonoid constituents of floating leaf blades, floating leaf petioles, and submersed (phyllodal) leaves of P. natans differed in the population studied with eight compounds occurring in floating blade tissue, four compounds in floating petiole tissue, and one compound in submersed leaf tissue (Table 4). DISCUSSION -Our documentation ofthe lack offlavonols, prevalence ofluteolin and chrysoeriol derivatives, and presence ofglycoflavones in Potamogeton agrees precisely with earlier biochemical studies of the genus (Boutard et al, 1972(Boutard et al, , 1973Roberts and Haynes, 1986) and of the subclass Alismatidae in general (Crawford, 1978;Williams and Harborne, 1988). We further report the occurrence of isoorientin in P. richardsonii not detected by Roberts and Haynes (1986).…”

Section: Numerical Analyses-a Cluster Analysis Ofsupporting

confidence: 91%

Biochemical Heterophylly and Flavonoid Evolution in North American Potamogeton (Potamogetonaceae)

Les

Sheridan

1990

American J of Botany

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Morphologically heterophyllous species of Potamogeton also commonly display biochemical heterophylly with respect to flavonoid compounds. Generally, floating leaves contain an assortment of flavonoids, whereas submersed leaves often exhibit reduced flavonoid profiles. In strictly submersed (homophyllous) species, two patterns occur. Linear-leaved species have few flavonoids and their biochemical profiles resemble those of submersed leaves of heterophyllous species. Broad-leaved homophyllous species possess flavonoid profiles more similar to those of the floating leaves of heterophyllous species. Numerical analysis of these chemical data is consistent with phylogenetic relationships within the genus derived independently on the basis of morphological and chromosomal data. Glycoflavones, which are probably maintained in floating leaves because of their UV filtering ability, exhibit the most pronounced biochemical heterophylly in Potamogeton. The lack of glycoflavones in submersed leaves of heterophyllous species and in linear-leaved homophyllous species is attributable to the ability of naturally colored water to significantly absorb harmful UV radiation. These observations provide strong support for earlier hypotheses suggesting the importance of flavonoid evolution in the conquest of exposed terrestrial habitats by plants.

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Section: Numerical Analyses-a Cluster Analysis Ofsupporting

confidence: 91%

Biochemical Heterophylly and Flavonoid Evolution in North American Potamogeton (Potamogetonaceae)

Les

Sheridan

1990

American J of Botany

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“…Chemical profile of the family is special among the monocotyledons. Several flavonoid compounds (Lewis & Mabrry, 1972;Williams, 1978;Williams & Harbone, 1988;Yano, 1998Yano, ,2003, anthocyanins (Saito & Harbone, 1983;Scogin, 1985), esters of arylpropanoid acid derivatives (Sutherland & Gortner, 1959;Takata & Scheuer, 1976;Rocha, 1999) have been related to Bromeliaceae species. These types of compounds are known as possessing antioxidant and antiradical activities (Graf, 1992;Cotelle et al, 1996;Rice-Evans et al, 1996, Pietta, 2000Silva et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Brazilian Bromeliaceae species: isolation of arylpropanoid acid derivatives and antiradical potential

Rocha¹,

Yano²,

Cunha³

et al. 2010

Rev. bras. farmacogn.

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RESUMO: "Espécies de Bromeliaceae brasileiras: isolamento de derivados arilpropanoídicos e potencial antiradicalar". Um total de vinte extratos de seis espécies de Bromeliaceae brasileiras foram avaliadas quanto a atividade antioxidante, usando-se o método colorimétrico de redução do radical DPPH. De maneira geral, os extratos polares dos rizomas das espécies de Bromeliaceae testadas revelaram melhor perfil antioxidante do que os extratos das folhas e dos frutos das mesmas espécies. Os melhores resultados foram encontrados para os rizomas de Vriesea procera (Mart. ex Schult.f.) Wittm. e Neoregelia cruenta (Graham) L.B. Sm. O extrato bruto metanólico das folhas de Ananas bracteatus (Lindl.) Schult. & Schult. f. apresentou uma atividade significativa, em relação aos extratos de folhas testados, e o processo de purificação desse extrato resultou na identificação de quatro metabólitos: ferulato de 2-glicerila, p-cumarato de 2-glicerila, 5,7,4'-triidroxi-3,3',5'-trimetoxiflavona e 3-O-β-D-glicopiranosil sitosterol.Unitermos: Bromeliaceae, antioxidante, ferulato de 2-glicerila, p-cumarato de 2-glicerila, 5,7,4'-triidroxi-3,3',5'-trimetoxiflavona. ABSTRACT:A total of twenty different extracts from six Brazilian Bromeliaceae species was screened for antioxidant activity by assessment of their capacity to scavenge the DPPH radical. In a general way, the polar rhizome extracts from Bromeliaceae representatives showed better antioxidant results than the extracts from leaves and fruits of the same species. The best results were found for the rhizome extracts of Vriesea procera (Mart. ex Schult.f.) Wittm. and Neoregelia cruenta (Graham) L.B. Sm. Crude methanol extract of Ananas bracteatus (Lindl.) Schult. & Schult. f. leaf had a significant antiradical activity among the leaves extracts assessed its purification afforded four metabolites: 2-O-feruloyl glyceride, 2-O-p-coumaroyl glyceride, 5,7,4'-trihydroxy-3,3',5'-trimethoxyflavone and 3-O-β-D-glucopyranosyl sitosterol.

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“…This feature is not attributable to the aquatic habitat in which Hydrostachyaceae occur since other aquatic angiosperms in both the freshwater and marine environments maintain a rich suite ofphylogenetically determined secondary compounds. Classes of secondary compounds which have been retained in aquatic taxa include alkaloids (Ostrofsky and Zettler 1986), iridoids (Hegnauer 1969), phenylpropanoid glycosides (Scogin 1992), and tannins (McMillan 1984;Williams and Harbome 1988). Such results from other plant groups suggest that the depauperate secondary compound chemistry ofHydrostachyaceae is not due to occurrence in the aquatic habitat, but rather a reflection of phylogenetically based biosynthetic constraints within the genome.…”

Section: Depauperate Secondary Compound Chemistrymentioning

confidence: 99%

Phytochemical Profile of Hydrostachys Insignis (Hydrostachyaceae)

Scogin¹

1992

aliso

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Distribution and evolution of flavonoids in the monocotyledons

Cited by 16 publications

References 90 publications

Biochemical Heterophylly and Flavonoid Evolution in North American Potamogeton (Potamogetonaceae)

Biochemical Heterophylly and Flavonoid Evolution in North American Potamogeton (Potamogetonaceae)

Brazilian Bromeliaceae species: isolation of arylpropanoid acid derivatives and antiradical potential

Phytochemical Profile of Hydrostachys Insignis (Hydrostachyaceae)

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