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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
14/09/2018 |
Data da última atualização: |
14/11/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
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. |
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. |
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. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
South African Journal of Botany, v. 116, p. 142-149, 2018. |
Idioma: |
Português |
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 |
Palavras-Chave: |
Structural changes. |
Thesaurus Nal: |
P-coumaric acid; Plant anatomy; Poaceae. |
Categoria do assunto: |
-- |
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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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Hortaliças. Para informações adicionais entre em contato com cnph.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
03/09/1999 |
Data da última atualização: |
03/09/1999 |
Autoria: |
MARTINS, E. S.; CALBO, A. G; HORINO, Y. |
Afiliação: |
EMBRAPA-CNPH, Brasilia, DF. |
Título: |
Efeito da temperatura sobre a conservacao do pimentao cultivar Agronomico 10 G. |
Ano de publicação: |
1980 |
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE OLERICULTURA, 20., 1980, Brasilia, DF. Resumos... Brasilia: EMBRAPA / EMBRATER / SOB, 1980. |
Páginas: |
p.164. |
Idioma: |
Português |
Palavras-Chave: |
Conservation; Cultivar Agronomico 10 G; Postharvest; Sweet pepper. |
Thesagro: |
Capsicum Annuum; Conservação; Pimentão; Pós-Colheita; Temperatura. |
Thesaurus NAL: |
temperature. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00785naa a2200265 a 4500 001 1765393 005 1999-09-03 008 1980 bl uuuu u00u1 u #d 100 1 $aMARTINS, E. S. 245 $aEfeito da temperatura sobre a conservacao do pimentao cultivar Agronomico 10 G. 260 $c1980 300 $ap.164. 650 $atemperature 650 $aCapsicum Annuum 650 $aConservação 650 $aPimentão 650 $aPós-Colheita 650 $aTemperatura 653 $aConservation 653 $aCultivar Agronomico 10 G 653 $aPostharvest 653 $aSweet pepper 700 1 $aCALBO, A. G 700 1 $aHORINO, Y. 773 $tIn: CONGRESSO BRASILEIRO DE OLERICULTURA, 20., 1980, Brasilia, DF. Resumos... Brasilia: EMBRAPA / EMBRATER / SOB, 1980.
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