Flavonoids of Syngonanthus Ruhl. (Eriocaulaceae): Taxonomic implications

Ricci, Christiano Streb; Patrício, Márcia Cristina Bomfim; Salatino, Maria Luiza Faria; Salatino, Antônio; Giulietti, Ana María

doi:10.1016/0305-1978(96)00056-7

Cited by 25 publications

(21 citation statements)

References 9 publications

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“…thrix contributes to distinguish this genus from Syngonanthus. Flavonoids also contribute to the chemical differentiation at the genus level, since Paepalanthus species produces 6-and/or 7-methoxyflavonol derivatives, whereas Leiothrix and Syngonanthus seem to produce mainly flavone derivatives (Santos et al, 2001, Dokkedal andSalatino, 1992;Ricci et al, 1996). The chemical profile of P. macrocephalus Koern.…”

Section: Resultsmentioning

confidence: 99%

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Chemistry in Eriocaulaceae

Dokkedal

Santos

Sano

et al. 2008

Zeitschrift Für Naturforschung C

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Eriocaulaceae is a pantropical family that comprises about 1100 species distributed in 11 genera. The infrafamilial relationships are still unsatisfactorily resolved, because of the tiny flowers and generalized morphology, which makes the taxonomy very difficult. Flavonoid and naphthopyranone profiles have proved to be important in order to contribute to the alignment of genera into the family. We here present a survey of the chemical data of Eriocaulaceae with a discussion about their contribution to the taxonomy of Eriocaulaceae.

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Section: Resultsmentioning

confidence: 99%

“…Sano]. Flavone glycosides were found in 22 taxa of Syngonanthus (Ricci et al, 1996). This data suggested a close alignment between Leiothrix/Syngonanthus and distinguished this group from Eriocaulon/Paepalanthus.…”

Section: Introductionmentioning

confidence: 83%

Chemistry in Eriocaulaceae

Dokkedal

Santos

Sano

et al. 2008

Zeitschrift Für Naturforschung C

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“…Leiothrix produces mainly flavones and xanthones, 16,17) while Syngonanthus afforded only flavones. [18][19][20] From the evolutionary point of view, it is considered that Leiothrix and Syngonanthus may have originated from Paepalanthus, in a more advanced position than Eriocaulon, 21) since the substitution of flavonols with flavones, 3) is a well established condition. 22) Naphthopyranones are a relatively rare class of natural compounds and the presence of this class of compounds in E. ligulatum suggests an approximation between Eriocaulon and Paepalanthus, whereas the presence of the flavones align Eriocaulon in a less advanced sister group relative to the Leiothrix/Syngonanthus clade.…”

Section: Resultsmentioning

confidence: 99%

Flavonoids and a Naphthopyranone from Eriocaulon ligulatum and Their Mutagenic Activity

Silva

Oliveira

Sannomiya

et al. 2007

CHEMICAL & PHARMACEUTICAL BULLETIN

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“…Other classes of secondary metabolites, most importantly flavonoids (Woodland, 1997), have been more frequently used for comparisons at lower hierarchic lev-Eriocaulaceae derives from the works of Bate- Smith and Harborne (1969) on six species of Eriocaulon, Dokkedal and Salatino (1992) on six species of Leiothrix, Mayworm and Salatino (1993) on four species of Paepalanthus and Ricci et al (1996) on 22 species of Syngonanthus. Figure 1 shows some examples of flavonoid aglycones found in Eriocaulaceae and the genera and some infrageneric categories in which the structural types predominate.…”

Section: Introductionmentioning

confidence: 99%

Distribution and evolution of secondary metabolites in Eriocaulaceae, Lythraceae and Velloziaceae from "campos rupestres"

Salatino

Santos

et al. 2000

Genet. Mol. Biol.

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els such as genera, species and infraspecific categories. Another class of compounds that has deserved much attention, not only in plant but also in insect taxonomy, are hydrocarbons, in particular alkanes (Hamilton, 1995). Both classes of secondary metabolites combine the advantages of universal occurrence in vascular plants, chemical stability and the availability of rapid isolation and identification methods (Harborne, 1998).In spite of the widespread use of secondary metabolites in taxonomy they have never achieved the same status as characters for the establishment of phyletic relationships among plant taxa as macromolecules such as proteins and nucleic acids, which have recently received much attention in molecular systematics (Hillis et al., 1996). Inferences regarding the evolution of secondary metabolites depend on comparisons with dendrograms obtained through cladistic techniques based on wide sets of "traditional" morphologic or molecular characters. This paper discusses the development of secondary metabolite patterns in taxa of three families, Eriocaulaceae, Lythraceae and Velloziaceae, which are widely distributed in the campos rupestres, mountainous ecosystems found in the Espinhaço Mountains of the Brazilian States of Minas Gerais and Bahia. We also discuss the evolution of the distribution of secondary metabolites based on recent cladistic analyses, taking into account the distribution of secondary metabolites such as the flavonoids of Eriocaulaceae and Lythraceae, the alkanes of the foliar waxes of Velloziaceae and the fatty acids of Lythraceae. FLAVONOIDS EriocaulaceaeThe Eriocaulaceae are pantropical monocotyledons readily characterized by congested capitulla. The family comprises about 1100 species of which 700 occur in the New World, particularly on higher altitude mountains in Minas Gerais and Bahia (Giulietti and Pirani, 1988 AbstractHypotheses are presented on the evolution of structural patterns of secondary metabolites (flavonoids and foliar wax alkanes) and fatty acids of families of "campos rupestres". The distribution of fatty acids is given for genera of Lythraceae, with emphasis on Cuphea (supposedly more advanced) and Diplusodon. Compounds with saturated short chains represent a derived condition in Lythraceae although they are probably restricted to Cuphea. It is suggested that evolution selected for more complex flavonoid patterns in Cuphea, with the inclusion of C-glycoflavones and methoxylated flavonols (rhamnetin and isorhamnetin), which are not found in members of Diplusodon and Lafoensia. The supposedly primitive groups of Eriocaulaceae (e.g., Paepalanthus) presented more complex flavonoid patterns characterized by flavones and flavonols, the latter frequently being 6-hydroxylated or methoxylated. More advanced groups of Eriocaulaceae (e.g., Leiothrix and Syngonanthus) apparently possess only flavones, C-glycoflavones are a salient feature of species with smaller habits. In Velloziaceae, members of the primitive subfamily Vellozioideae show distribution of alkanes of foli...

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Flavonoids of Syngonanthus Ruhl. (Eriocaulaceae): Taxonomic implications

Cited by 25 publications

References 9 publications

Chemistry in Eriocaulaceae

Chemistry in Eriocaulaceae

Flavonoids and a Naphthopyranone from Eriocaulon ligulatum and Their Mutagenic Activity

Distribution and evolution of secondary metabolites in Eriocaulaceae, Lythraceae and Velloziaceae from "campos rupestres"

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