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Registros recuperados : 3 | |
3. | | NASCIMENTO, M. C. de O.; MONTEIRO, N. V. A.; PEREIRA, A. H. R.; LOBO, R. N. B.; SILVA, K. de M. Estudo da taxa de sobrevivência do nascimento ao desmame em relação ao tipo de parto de ovinos Morada Nova. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA CAPRINOS E OVINOS, 7., 2018, Sobral. Resumos... Sobral: Embrapa Caprinos e Ovinos, 2018. p. 10-11. (Embrapa Caprinos e Ovinos. Documentos, 126). Biblioteca(s): Embrapa Caprinos e Ovinos. |
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Registros recuperados : 3 | |
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
30/06/1993 |
Data da última atualização: |
06/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GARCEZ, F. R.; SCRAMIN, S.; NASCIMENTO, M. C. de; MORS, W. B. |
Afiliação: |
EMBRAPA-CNPMA. |
Título: |
Prenylated flavonoids as evolutionary indicators in the genus Dahlstedtia. |
Ano de publicação: |
1988 |
Fonte/Imprenta: |
Phytochemistry, v.27, n.4, p.1079-1083, 1988. |
DOI: |
https://doi.org/10.1016/0031-9422(88)80277-2 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Three chalcones, two beta-hydroxychalcones, four flavanones, six flavones, four flavonols, one rotenoid and one pterocarpan were isolated from the roots of Dahlstedtia pinnata and D. pentaphylla. With the exception of the pterocarpan, all the compounds exhibit prenylation in the A ring, a characteristic of flavonoids produced by species of the Tephrosieae. Of the 21 flavonoids identified, five (2 flavanones and 3 flavones) are new as naturally occurring compounds. A neat distinction in the biosynthetic capability of the two species, leading to the production of flavanones and flavonols in D. pentaphylla, but not in D. pinnata, is observed. In this latter species, biosynthesis is totally oriented toward dehydrogenation, producing flavones. By both criteria-higher oxidation state and suppression of enzyme systems-D. pinnata is the more advanced species. |
Palavras-Chave: |
Dahlstedtia pentaphylla; Dahlstedtia pinnata; Evolutionary indicators; Flavonoid; Prenylated flavonoids; Substance. |
Thesagro: |
Leguminosae. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224882/1/Scramin-Prenylated-flavonoids-1988.pdf
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Marc: |
LEADER 01632naa a2200253 a 4500 001 1010582 005 2021-08-06 008 1988 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/0031-9422(88)80277-2$2DOI 100 1 $aGARCEZ, F. R. 245 $aPrenylated flavonoids as evolutionary indicators in the genus Dahlstedtia.$h[electronic resource] 260 $c1988 520 $aAbstract: Three chalcones, two beta-hydroxychalcones, four flavanones, six flavones, four flavonols, one rotenoid and one pterocarpan were isolated from the roots of Dahlstedtia pinnata and D. pentaphylla. With the exception of the pterocarpan, all the compounds exhibit prenylation in the A ring, a characteristic of flavonoids produced by species of the Tephrosieae. Of the 21 flavonoids identified, five (2 flavanones and 3 flavones) are new as naturally occurring compounds. A neat distinction in the biosynthetic capability of the two species, leading to the production of flavanones and flavonols in D. pentaphylla, but not in D. pinnata, is observed. In this latter species, biosynthesis is totally oriented toward dehydrogenation, producing flavones. By both criteria-higher oxidation state and suppression of enzyme systems-D. pinnata is the more advanced species. 650 $aLeguminosae 653 $aDahlstedtia pentaphylla 653 $aDahlstedtia pinnata 653 $aEvolutionary indicators 653 $aFlavonoid 653 $aPrenylated flavonoids 653 $aSubstance 700 1 $aSCRAMIN, S. 700 1 $aNASCIMENTO, M. C. de 700 1 $aMORS, W. B. 773 $tPhytochemistry$gv.27, n.4, p.1079-1083, 1988.
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Embrapa Meio Ambiente (CNPMA) |
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