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| Registros recuperados : 27 | |
| 3. |  | ANDRE, R. S.; PAVINATTO, A.; MERCANTE, L. A.; PARIS, E. C.; MATTOSO, L. H. C.; CORREA, D. S. Development of hybrid nanostructured platforms for chemical sensor applications. In: BRAZILIAN MRS MEETING - SBPMAT, 14, 2015, Rio de Janeiro. Program book... Rio de Janeiro: SBPMat, 2015. não paginado.| Biblioteca(s): Embrapa Instrumentação. |
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| 8. | | MIGLIORINI, F. L.; SANFELICE, R. C.; PAVINATTO, A.; STEFFENS, J.; STEFFENS, C.; CORREA, D. S. Electrospun nanofibers based on polyamide 6/chitosan modified with metal nanoparticles for application in a chemical sensor. In: BRAZIL MRS MEETING - SBPMAT, 15, 2016, Rio de Janeiro. Proceedings... Rio de Janeiro: SBPMat, 2016. não paginado.| Biblioteca(s): Embrapa Instrumentação. |
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| 9. | | MIGLIORINI, F. L.; SANFELICE, R. C.; PAVINATTO, A.; STEFFENS, J.; STEFFENS, C.; CORREA, D. S. Electrospun nanofibers based on polyamide 6/chitosan modified with metal nanoparticles for application in a chemical sensor. In: BRAZIL MRS MEETING - SBPMAT, 15, 2016, Rio de Janeiro. Proceedings... Rio de Janeiro: SBPMat, 2016. p. 919.| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | PEREA, G. N. R.; PAVINATTO, A.; SCHNEIDER, R.; MUNK, M.; BRANDAO, H. de M.; CORREA, D. S. Electrospun nanofibers based on polyvinylpyrrolidone/chitosan and cloxacillin: investigation of morphological features, antibiotic release and antimicrobial properties. Journal of Polymer Research, v. 30, 166, 2023.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Instrumentação. |
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| 11. | | MERCANTE, L. A.; PAVINATTO, A.; IWAKI, L. E. O.; SCAGION, V. P.; ZUCOLOTTO, V.; OLIVEIRA JÚNIOR, O. N.; MATTOSO, L. H. C.; CORREA, D. S. Electrospun polyamide 6/poly(allylamine hydrochloride) nanofibers functionalized with carbon nanotubes for electrochemical detection of dopamine. ACS applied materials and interfaces, [S. l.], v. 7, n. 8, p. 4784-4790, 2015.| Biblioteca(s): Embrapa Instrumentação. |
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| 12. | | PAVINATTO, A.; MERCANTE, L. A.; CORREA, D. S. Filmes nanoestruturados contendo quitosana para aplicação como plataforma de biossensor eletroquímico. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 2014, São Carlos, SP Anais do SIAGRO: ciência, inovação e mercado 2014. São Carlos, SP: Embrapa Instrumentação, 2014. p. 411-414. Editores: Carlos Manoel Pedro Vaz, Débora Marcondes Bastos Pereira Milori, Silvio Crestana.| Biblioteca(s): Embrapa Instrumentação. |
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| 13. | | PAVINATTO, A.; MERCANTE, L. A.; CORREA, D. S. Filmes nanoestruturados contendo quitosana para aplicação como plataforma sensorial. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 8, 2014, Juiz de fora. Anais... São Carlos: Embrapa Instrumentação; Campo Grande: Embrapa Gado de Corte; Juiz de Fora: Embrapa Gado de Leite, 2014. p. 40-42. Editores: Maria Alice Martins, Humberto de Mello Brandão, Marlene de Barros Coelho, Daniel Souza Corrêa, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Biblioteca(s): Embrapa Instrumentação. |
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| 14. | | SANFELICE, R. C.; MERCANTE, L. A.; PAVINATTO, A.; TOMAZIO, N. B.; MENDONÇA, C. R.; RIBEIRO, S. J. L.; MATTOSO, L. H. C.; CORREA, D. S. Hybrid composite material based on polythiophene derivative nanofibers modified with gold nanioparticles for optoeletronics applications. In: J Mater Sci, v. 52, p. 1919-1929, 2017.| Biblioteca(s): Embrapa Instrumentação. |
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| 16. | | ANDRE, R. S.; PAVINATTO, A.; MERCANTE, L. A.; PARIS, E. C.; MATTOSO, L. H. C.; CORREA, D. S. Improving the electrochemical properties of polyamide 6/polyaniline electrospun nanofibers by surface modification with ZnO nanoparticles. RSC advances, [Inglaterra], v. 5, n. 90, p. 73875-73881, 2015.| Biblioteca(s): Embrapa Instrumentação. |
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| 20. | | PAVINATTO, A.; MERCANTE, L. A.; FACURE, L. H. C.; MATTOSO, L. H. C.; CORREA, D. S. Nanofibras eletrofiadas de PVP/quitosana/óxido de grafeno reduzido para aplicação em biossensores. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais ... São Carlos: Embrapa Instrumentação, 2017. p. 71-73. Editores: Caue Ribeiro de Oliveira, Elaine Cristina Paris, Luiz Henrique Capparelli Mattoso, Marcelo Porto Bemquerer, Maria Alice Martins, Odílio Benedito Garrido de Assis.| Biblioteca(s): Embrapa Instrumentação. |
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| Registros recuperados : 27 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
16/05/2005 |
|
Data da última atualização: |
08/11/2012 |
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Autoria: |
VOLL, E.; VOLL, C. E.; VICTORIA FILHO, R. |
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Título: |
Allelopathic effects of aconitic acid on wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia). |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Journal of Environmental Science and Health, New York, v.B40, n. 1, p. 69-75, 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
High infestations of alexandergrass (Brachiaria plantaginea) in experimental area have reduced seedbank of some weed species in soil at a greater degree compared to those obtained with the use of an efficient herbicide. Aconitic acid (AA) has been identified in those plants in high concentration. Thus, two experiments were carried out in the laboratory to determine the effects of pure AA on weed seed germination and on endophytic fungi in wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia) weed species. Doses of AA (0, 0.5, 1.0, and 2.0 mM) were introduced in agar-water 0.5% medium and weed seeds treated with and without external sterilization by sodium hypochloride. Four replications of fifty seeds of each species by treatment were sown in plastic boxes with cover and maintained in germination chamber for 12 days. Reduction in germination rate, root and stem growth were observed in both species, as well as reduction in root number in morningglory were also observed at 2.0 mM concentration of AA. An increase in number of seeds with presence of endophytic fungi was also observed in both species, independently of seed sterilization, mainly of a green type fungi coloration in wild poinsettia. Aconitic acid presents allelopathic activity and can stimulate endophytic fungi species growth in weed seeds. |
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Palavras-Chave: |
Fungo endofítico. |
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Thesagro: |
Alelopatia; Erva Daninha. |
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Categoria do assunto: |
-- |
|
Marc: |
LEADER 01922naa a2200181 a 4500
001 1467944
005 2012-11-08
008 2005 bl --- 0-- u #d
100 1 $aVOLL, E.
245 $aAllelopathic effects of aconitic acid on wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia).
260 $c2005
520 $aHigh infestations of alexandergrass (Brachiaria plantaginea) in experimental area have reduced seedbank of some weed species in soil at a greater degree compared to those obtained with the use of an efficient herbicide. Aconitic acid (AA) has been identified in those plants in high concentration. Thus, two experiments were carried out in the laboratory to determine the effects of pure AA on weed seed germination and on endophytic fungi in wild poinsettia (Euphorbia heterophylla) and morningglory (Ipomoea grandifolia) weed species. Doses of AA (0, 0.5, 1.0, and 2.0 mM) were introduced in agar-water 0.5% medium and weed seeds treated with and without external sterilization by sodium hypochloride. Four replications of fifty seeds of each species by treatment were sown in plastic boxes with cover and maintained in germination chamber for 12 days. Reduction in germination rate, root and stem growth were observed in both species, as well as reduction in root number in morningglory were also observed at 2.0 mM concentration of AA. An increase in number of seeds with presence of endophytic fungi was also observed in both species, independently of seed sterilization, mainly of a green type fungi coloration in wild poinsettia. Aconitic acid presents allelopathic activity and can stimulate endophytic fungi species growth in weed seeds.
650 $aAlelopatia
650 $aErva Daninha
653 $aFungo endofítico
700 1 $aVOLL, C. E.
700 1 $aVICTORIA FILHO, R.
773 $tJournal of Environmental Science and Health, New York$gv.B40, n. 1, p. 69-75, 2005.
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