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| Registros recuperados : 10 | |
| 1. |  | BITTENCOURT, E.; WISNIEWSKI, C.; RADOMSKI, M. I.; CURCIO, G. R.; RACHWAL, M. F. G. Caracterização nutricional de espécies nativas plantadas sobre solos aluviais litoral paranaense. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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| 2. | | ZILLER, S. R.; PANZERI, C. G.; CURCIO, G. R.; RACHWAL, M. F. G.; MASCHIO, W. Levantamento fitossociológico em Floresta Ombrófila Densa Submontana, Município de Guaraqueçaba, localidade de Serra Negra, Paraná. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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| 6. | | REUNIÃO DE CLASSIFICAÇÃO, CORRELAÇÃO E APLICAÇÃO DE LEVANTAMENTOS DE SOLOS, 6., 2000, Colombo. Guia de excursão de estudos de solos nos estados do Rio Grande do Sul, Santa Catarina e Paraná. Colombo: Embrapa Florestas; Rio de Janeiro: Embrapa Solos; Campinas: IAC, 2000. 222 p. Organizado por: Curcio, G. R.; Carvalho, A. P. de; Bognola, I. A.; Gomes, I. A.; Rossi, m.; Coelho, M. R. Santos, R. D. dos.| Biblioteca(s): Embrapa Florestas; Embrapa Solos; Embrapa Solos / UEP-Recife. |
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| 7. | | RESENDE, A. S. de; FERREIRA, A. L.; PEDREIRA, B. da C. C. G.; JANTALIA, C. P.; CAMPELLO, E. F. C.; FIDALGO, E. C. C.; BALIEIRO, F. de C.; DONAGEMMA, G. K.; CURCIO, G. R.; SOUSA, L. P. de; CORREIA, M. E. F.; PRADO, R. B.; DEDECEK, R. A.; CARVALHO JÚNIOR, W. de (coord.). Corredor ecológico do COMPERJ: um caminho verde para o COMPERJ. Rio de Janeiro: Embrapa Agrobiologia: Colombo, PR: Embrapa Floresta; Rio de Janeiro: Embrapa Solos, 2007. 39 p.| Biblioteca(s): Embrapa Agrobiologia. |
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| 8. | | WISNIEWSKI, C.; RACHWAL, M. F. G.; CURCIO, G. R.; GOMES, E. P. Avaliação nutricional e exportação de nutrientes pela erva-mate plantada em diferentes ambientes. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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| 9. | | ROCHA, M. R. L.; CURCIO, G. R.; RODERJAN, C. V. Interações entre parâmetros fitossiociológicos e características edáficas em uma Floresta Ombrófila Densa Altomontana no Parque Estadual Pico do Marumbi - Morretes/PR. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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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. |
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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Circulação/Nível: |
A - 2 |
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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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