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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
14/09/2018 |
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Data da última atualização: |
14/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FEITOZA, R. B. B.; LIMA, H. R. P.; OLIVERIA, E. A. G.; OLIVEIRA; MORAES, L. F. D. de; OLIVEIRA, A. E. A.; CARVALHO, F. M. G.; CUNHA, D. M. da. |
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Afiliação: |
UENF; UFRRJ; OLIVEIRA, E.A.G., UFRJ; C, D.R. OLIVEIRA, UFRRJ; LUIZ FERNANDO DUARTE DE MORAES, CNPAB; A.E.A. OLIVEIRA, UENF; F, M.G. CARVALHO, UFRRJ; D, M. DA CUNHA, UENF. |
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Título: |
Structural and ultrastructural variations in roots of Calopogonium mucunoides Desv. treated with phenolic compounds from Urochloa humidicola (Rendle) Morrone & Zuloaga and phenolic commercial standards. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
South African Journal of Botany, v. 116, p. 142-149, 2018. |
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Idioma: |
Português |
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Conteúdo: |
Urochloa humidicola (Rendle) Morrone & Zuloaga is an exotic forage grass cultivated in Brazil. Previous studies have identified different phenolic compounds produced by this species, including flavonoids and p-coumaric acid, which have been well-known as allelochemical compounds. We evaluated the morphology, anatomy and ultrastructure of Calopogoniummucunoides roots exposed to phenolic compounds found in U. humidicola. Leaves of U. humidicola were dried, crushed and submitted to extraction in methanol solution, which was fractionated through partition using organic solvents. In the bioassays, the hydromethanolic leaf extract of U. humidicola, commercial standard solutions of phenols and a control were all tested against the germination and seedling growth of C. mucunoides. The seedlings of C. mucunoides were measured, morphologically described, and the roots were processed according to standard techniques for plant anatomy and electron microscopy. Urochloa humidicola leaf extract inhibited root development, although they stimulated shoot elongation. The p-coumaric acid strongly inhibited plant development, caused root tip necrosis and decreased production of lateral roots, as well as changes in anatomy. Seedlings treated with quercitrin, luteolin and fisetin showed greater lengths, whereas kaempferol negatively affected root growth. Also, U. humidicola extract, p-coumaric acid and kaempferol caused marked changes in root cell ultrastructure. These results suggest a potential phytotoxic effect caused by U. humidicola leaf compounds isolated against C. mucunoides seedlings, although the association of these compounds is suggested to be antagonistic. MenosUrochloa humidicola (Rendle) Morrone & Zuloaga is an exotic forage grass cultivated in Brazil. Previous studies have identified different phenolic compounds produced by this species, including flavonoids and p-coumaric acid, which have been well-known as allelochemical compounds. We evaluated the morphology, anatomy and ultrastructure of Calopogoniummucunoides roots exposed to phenolic compounds found in U. humidicola. Leaves of U. humidicola were dried, crushed and submitted to extraction in methanol solution, which was fractionated through partition using organic solvents. In the bioassays, the hydromethanolic leaf extract of U. humidicola, commercial standard solutions of phenols and a control were all tested against the germination and seedling growth of C. mucunoides. The seedlings of C. mucunoides were measured, morphologically described, and the roots were processed according to standard techniques for plant anatomy and electron microscopy. Urochloa humidicola leaf extract inhibited root development, although they stimulated shoot elongation. The p-coumaric acid strongly inhibited plant development, caused root tip necrosis and decreased production of lateral roots, as well as changes in anatomy. Seedlings treated with quercitrin, luteolin and fisetin showed greater lengths, whereas kaempferol negatively affected root growth. Also, U. humidicola extract, p-coumaric acid and kaempferol caused marked changes in root cell ultrastructure. These results suggest a potential... Mostrar Tudo |
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Palavras-Chave: |
Structural changes. |
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Thesaurus Nal: |
P-coumaric acid; Plant anatomy; Poaceae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02536naa a2200253 a 4500
001 2095703
005 2018-11-14
008 2018 bl uuuu u00u1 u #d
100 1 $aFEITOZA, R. B. B.
245 $aStructural and ultrastructural variations in roots of Calopogonium mucunoides Desv. treated with phenolic compounds from Urochloa humidicola (Rendle) Morrone & Zuloaga and phenolic commercial standards.$h[electronic resource]
260 $c2018
520 $aUrochloa humidicola (Rendle) Morrone & Zuloaga is an exotic forage grass cultivated in Brazil. Previous studies have identified different phenolic compounds produced by this species, including flavonoids and p-coumaric acid, which have been well-known as allelochemical compounds. We evaluated the morphology, anatomy and ultrastructure of Calopogoniummucunoides roots exposed to phenolic compounds found in U. humidicola. Leaves of U. humidicola were dried, crushed and submitted to extraction in methanol solution, which was fractionated through partition using organic solvents. In the bioassays, the hydromethanolic leaf extract of U. humidicola, commercial standard solutions of phenols and a control were all tested against the germination and seedling growth of C. mucunoides. The seedlings of C. mucunoides were measured, morphologically described, and the roots were processed according to standard techniques for plant anatomy and electron microscopy. Urochloa humidicola leaf extract inhibited root development, although they stimulated shoot elongation. The p-coumaric acid strongly inhibited plant development, caused root tip necrosis and decreased production of lateral roots, as well as changes in anatomy. Seedlings treated with quercitrin, luteolin and fisetin showed greater lengths, whereas kaempferol negatively affected root growth. Also, U. humidicola extract, p-coumaric acid and kaempferol caused marked changes in root cell ultrastructure. These results suggest a potential phytotoxic effect caused by U. humidicola leaf compounds isolated against C. mucunoides seedlings, although the association of these compounds is suggested to be antagonistic.
650 $aP-coumaric acid
650 $aPlant anatomy
650 $aPoaceae
653 $aStructural changes
700 1 $aLIMA, H. R. P.
700 1 $aOLIVERIA, E. A. G.
700 1 $aOLIVEIRA
700 1 $aMORAES, L. F. D. de
700 1 $aOLIVEIRA, A. E. A.
700 1 $aCARVALHO, F. M. G.
700 1 $aCUNHA, D. M. da
773 $tSouth African Journal of Botany$gv. 116, p. 142-149, 2018.
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Embrapa Agrobiologia (CNPAB) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Tabuleiros Costeiros. Para informações adicionais entre em contato com cpatc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
10/09/2009 |
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Data da última atualização: |
28/05/2014 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
ARAGÃO, W. M.; RIBEIRO, F. E.; MELO, M. F. de V. |
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Afiliação: |
Wilson Menezes Aragão, Cosultor independente; FRANCISCO ELIAS RIBEIRO, CPATC; Marília Freitas de Vasconcelos Melo, Mestranda UFS. |
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Título: |
Cultivares de coqueiro para a produção de coco seco: coqueiro gigante vs híbridos. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: CINTRA, F. L. D.; FONTES, H. R.; PASSOS, E. E. M.; RERREIRA, J. M. S. (Ed.). Fundamentos tecnológicos para a revitalização das áreas cultivadas com coqueiro gigante no nordeste do Brasil. Aracaju: Embrapa Tabuleiros Costeiros, 2009. 233 p. c. 3. |
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Páginas: |
p. 37-60 |
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Idioma: |
Português |
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Palavras-Chave: |
Coconut; Híbrido de coco. |
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Thesagro: |
Coco. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 00714naa a2200181 a 4500
001 1427714
005 2014-05-28
008 2009 bl uuuu u00u1 u #d
100 1 $aARAGÃO, W. M.
245 $aCultivares de coqueiro para a produção de coco seco$bcoqueiro gigante vs híbridos.
260 $c2009
300 $ap. 37-60
650 $aCoco
653 $aCoconut
653 $aHíbrido de coco
700 1 $aRIBEIRO, F. E.
700 1 $aMELO, M. F. de V.
773 $tIn: CINTRA, F. L. D.; FONTES, H. R.; PASSOS, E. E. M.; RERREIRA, J. M. S. (Ed.). Fundamentos tecnológicos para a revitalização das áreas cultivadas com coqueiro gigante no nordeste do Brasil. Aracaju: Embrapa Tabuleiros Costeiros, 2009. 233 p. c. 3.
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