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| Registros recuperados : 425 | |
| 242. |  | BOSCO, A. C.; DORES, E. F. G. C.; CARVALHO, D. P.; FERRACINI, V. L.; CALHEIROS, D. F. Avaliação da contaminação por agrotóxicos numa microbacia do Córrego Tenente Amaral, Jaciara, MT. In: SEMINÁRIO DA REDE AGROHIDRO, 3.; WORKSHOP DO PROJETO OS IMPACTOS DA AGRICULTURA E DAS MUDANÇAS CLIMÁTICAS NOS RECURSOS HÍDRICOS, 1., 2015, Corumbá, MS. Água na agricultura: desafios frente às mudanças climáticas e de uso da terra: resumos. Corumbá: Embrapa Pantanal, 2015. 17| Biblioteca(s): Embrapa Meio Ambiente. |
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| 243. | | BRAGA, T. V. S.; GUIMARÃES, T. M.; CARVALHO, D. C. de; BALDANI, V. L. D.; SILVA, E. M. R. Associação de bactérias fixadoras de nitrogênio em Allagoptera arenaria (Gomes) O. Kuntze na Restinga de Marambaia, RJ. In: JORNADA DE INICIAÇÃO CIENTÍFICA DA UNIVERSIDADE FEDERAL RURAL DO RIO DE JANEIRO, 18., 2008, Seropédica, RJ. Seropédica, RJ, 2008. Parceria: UFRRJ.| Biblioteca(s): Embrapa Agrobiologia. |
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| 244. | | PEREIRA, I. M.; BERG, E. van den; PINTO, L. V. de A.; HIGUCHI, P.; CARVALHO, D. A. de. Avaliação e proposta de conectividade dos fragmentos remanescentes no campus da Universidade Federal de Lavras, Minas Gerais. Cerne, Lavras, v. 16, n. 3, p. 305-321, jul./set. 2010.| Biblioteca(s): Embrapa Florestas. |
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| 245. | | CARVALHO, D. C. de; ALBUQUERQUE, M. C. de F. e.; CANEPPELE, M. A. B.; BRITO, J.; COSTA, J. Avaliação da resistência mecânica de grãos de milho via teste de impacto. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 15, n. 6, p. 724-730, jul., 2011.| Biblioteca(s): Embrapa Algodão. |
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| 246. | | CARVALHO, D. C. F.; COSTA, A. M. da; VIANA, J. H. M.; SAMPAIO, J. L. D.; JARDIM, C. H. Caracterização física e química dos solos de voçorocas na porção norte da Bacia Hidrográfica do Rio Pandeiros, Minas Gerais. In: SIMPÓSIO MINEIRO DE CIÊNCIA DO SOLO, 4., 2017, Viçosa, MG. Solos no espaço e tempo: trajetórias e tendências: anais. Viçosa, MG: Universidade Federal de Viçosa, 2017. p. 368-370.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 248. | | LISAUSKAS, S.; OLIVEIRA, R. R.; CARVALHO, D. M.; MELO, E. O.; RECH, E. L. ARAGÃO, F. J. L. Caracterização de locais de integração de transgenes em fibroblastos bovinos geneticamente modificados. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 7., 2002, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2002. p. 122.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 250. | | CARVALHO, D. F. de; MONTEBELLER, C. A.; CRUZ, E. S. da; CEDDIA, M. B.; LANA, A. M. Q. Perdas de solo e água em um Argis-solo vermelho,amarelo, submetido o diferentes intensidades de chuva simulada. Revista Brasileira de Engenharia Agricola e Ambiental, v.6, n.3, p.385-389, 2002| Biblioteca(s): Embrapa Algodão. |
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| 251. | | CARVALHO, D. F. de; SOUZA, W. de J.; PINTO, M. F.; OLIVEIRA, J. R. de; GUERRA, J. G. M. Perdas de água e solo sob diferentes padrões de chuva simulares e condições de cobertura do solo. Engenharia .Agrícola, Jaboticabal, v.32, n.4, p.708-717, jul./ago. 2012| Biblioteca(s): Embrapa Agrobiologia. |
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| 252. | | CARVALHO, D. F. de; SOARES, A. A.; RIBEIRO, C. A. A. S.; SEDYAMA, G. C.; PRUSKI, F. F. Otimizacao do solo da agua no perimetro irrigado do gorutuba, utilizando-se a tecnica da programacao linear. Revista Brasileira de Engenharia Agricola e Ambiental, Campina Grande, v.4, n.2, p. 203-209, 2000.| Biblioteca(s): Embrapa Algodão. |
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| 254. | | CARVALHO, D. S. de; BOGUSZ JUNIOR, S.; DIONISIO, A. P.; MARÓSTICA JUNIOR, M.; GODOY, H. T.; PASTORE, G. M. Optimization of headspace solid-phase microextraction conditions to determine fruity-aroma compounds produced by Neurospora sitophila. Analytical Methods, v. 6, n. 19, p. 7984-7988, 2014.| Biblioteca(s): Embrapa Agroindústria Tropical. |
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| 256. | | LIMA, M. A. C. de; FORMIGA JUNIOR, I. M.; SOLON, K. N.; AZEVEDO, S. S. N.; CARVALHO, D. A. Physical changes of mango fruit Tommy Atkins during development and maturation. In: SEMANA INTERNACIONAL DA FRUTICULTURA, FLORICULTURA E AGROINDÚSTRIA, 11.; INTERNATIONAL WEEK OF FRUIT CROP, FLORICULTURE AND AGROINDUSTRY, 11.; INTERNATIONAL SYMPOSIUM ON TROPICAL AND SUBTROPICAL FRUITS, 3.; SIMPÓSIO INTERNACIONAL DE FRUTAS TROPICAIS E SUBTROPICAIS, 3., 2004, Fortaleza. Frutal 2004: programa and abstracts. Fortaleza: Instituto FRUTAL: HPP, 2004. 1 CD-ROM.| Biblioteca(s): Embrapa Semiárido. |
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| 259. | | GIÁCOMO, R. G.; CARVALHO, D. C. de; MARCOS, G. P.; SOUZA, A. B. de; GAUI, T. D. Florística e fitossociologia em áreas de campu sujo e cerrado SENSU STRICTO na estação ecológica de Pirapitinga-Mg. Ciência Florestal, Santa Maria, RS, v. 23, n. 1, p. 29-43, jan./mar. 2013.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 425 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
06/02/2019 |
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Data da última atualização: |
26/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
MARTINS, M.; VERONEZE JÚNIOR, V.; CARVALHO, M.; CARVALHO, D. T.; BARBOSA, S.; DORIGUETTO, A. C.; MAGALHAES, P. C.; RIBEIRO, C.; SANTOS, M. H. dos; SOUZA, T. C. de. |
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Afiliação: |
Mayron Martins, Universidade Federal de Alfenas; Valdir Veroneze Júnior, Universidade Federal de Alfenas; Marilia Carvalho, Universidade Federal de Alfenas; Diogo T. Carvalho, Universidade Federal de Alfenas; Sandra Barbosa, Universidade Federal de Alfenas; Antônio C. Doriguetto, Universidade Federal de Alfenas; PAULO CESAR MAGALHAES, CNPMS; Cleberson Ribeiro, Universidade Federal de Viçosa; Marcelo H. dos Santos, Universidade Federal de Viçosa; Thiago C. de Souza, Universidade Federal de Alfenas. |
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Título: |
Physicochemical characterization of chitosan and its effects on early growth, cell cycle and root anatomy of transgenic and non-transgenic maize hybrids. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 12, n. 1, p. 56-36, 2018. |
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DOI: |
10.21475/ajs.18.12.01.pne649 |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of this study were to perform the physicochemical characterization of chitosan, to evaluate its effects on germination, early growth, root anatomy and on the cell cycle of two maize hybrids. The hybrids DKB 390 and DKB 390 VTPRO (transgenic) were used. DKB390 VTPRO is from Monsanto, and the event number is 89034, which expresses the proteins Cry1A105 and Cry2AB2. For the physico-chemical characterization of chitosan, the following analyzes were performed:, elemental analysis, total ash, infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric analysis, scanning electron microscopy and viscosity. With the analysis of infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric and elemental analysis it was observed that the structure of chitosan presents a low level of deacetylation. Chitosan had a total ash value of 1.32% and high viscosity. By scanning electron microscopy the chitosan was classified as porous and fibrous structure. Increase in the seed germination rate was observed in both maize hybrids in the presence of chitosan, without changes in the initial growth. The cell analyzes showed that the chitosan was not toxic even at high concentrations, since the mitotic index remained unchanged and no chromosomal abnormalities were detected. The effects of chitosan in root anatomy were evaluated through the measurements of sections of root tips on histological preparations, and the genetically modified hybrid presented the best results. As conclusion, the use of chitosan in appropriate concentrations may favor the development of maize (especially transgenic) acting on germination or changing the root anatomy and consequently increasing resistance and adaptation of the seedlings to adverse conditions. MenosThe objectives of this study were to perform the physicochemical characterization of chitosan, to evaluate its effects on germination, early growth, root anatomy and on the cell cycle of two maize hybrids. The hybrids DKB 390 and DKB 390 VTPRO (transgenic) were used. DKB390 VTPRO is from Monsanto, and the event number is 89034, which expresses the proteins Cry1A105 and Cry2AB2. For the physico-chemical characterization of chitosan, the following analyzes were performed:, elemental analysis, total ash, infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric analysis, scanning electron microscopy and viscosity. With the analysis of infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric and elemental analysis it was observed that the structure of chitosan presents a low level of deacetylation. Chitosan had a total ash value of 1.32% and high viscosity. By scanning electron microscopy the chitosan was classified as porous and fibrous structure. Increase in the seed germination rate was observed in both maize hybrids in the presence of chitosan, without changes in the initial growth. The cell analyzes showed that the chitosan was not toxic even at high concentrations, since the mitotic index remained unchanged and no chromosomal abnormalities were detected. The effects of chitosan in root anatomy were evaluated through the measurements of sections of root tips on histological prep... Mostrar Tudo |
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Palavras-Chave: |
Quitosana. |
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Thesagro: |
Hibrido; Milho; Propriedade Físico-Química. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/192217/1/Physicochemical-caracterization.pdf
|
|
Marc: |
LEADER 02757naa a2200289 a 4500
001 2105595
005 2019-10-26
008 2018 bl uuuu u00u1 u #d
024 7 $a10.21475/ajs.18.12.01.pne649$2DOI
100 1 $aMARTINS, M.
245 $aPhysicochemical characterization of chitosan and its effects on early growth, cell cycle and root anatomy of transgenic and non-transgenic maize hybrids.$h[electronic resource]
260 $c2018
520 $aThe objectives of this study were to perform the physicochemical characterization of chitosan, to evaluate its effects on germination, early growth, root anatomy and on the cell cycle of two maize hybrids. The hybrids DKB 390 and DKB 390 VTPRO (transgenic) were used. DKB390 VTPRO is from Monsanto, and the event number is 89034, which expresses the proteins Cry1A105 and Cry2AB2. For the physico-chemical characterization of chitosan, the following analyzes were performed:, elemental analysis, total ash, infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric analysis, scanning electron microscopy and viscosity. With the analysis of infrared absorption spectroscopy, nuclear magnetic resonance, powder X-ray diffraction, thermogravimetric and elemental analysis it was observed that the structure of chitosan presents a low level of deacetylation. Chitosan had a total ash value of 1.32% and high viscosity. By scanning electron microscopy the chitosan was classified as porous and fibrous structure. Increase in the seed germination rate was observed in both maize hybrids in the presence of chitosan, without changes in the initial growth. The cell analyzes showed that the chitosan was not toxic even at high concentrations, since the mitotic index remained unchanged and no chromosomal abnormalities were detected. The effects of chitosan in root anatomy were evaluated through the measurements of sections of root tips on histological preparations, and the genetically modified hybrid presented the best results. As conclusion, the use of chitosan in appropriate concentrations may favor the development of maize (especially transgenic) acting on germination or changing the root anatomy and consequently increasing resistance and adaptation of the seedlings to adverse conditions.
650 $aHibrido
650 $aMilho
650 $aPropriedade Físico-Química
653 $aQuitosana
700 1 $aVERONEZE JÚNIOR, V.
700 1 $aCARVALHO, M.
700 1 $aCARVALHO, D. T.
700 1 $aBARBOSA, S.
700 1 $aDORIGUETTO, A. C.
700 1 $aMAGALHAES, P. C.
700 1 $aRIBEIRO, C.
700 1 $aSANTOS, M. H. dos
700 1 $aSOUZA, T. C. de
773 $tAustralian Journal of Crop Science$gv. 12, n. 1, p. 56-36, 2018.
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Embrapa Milho e Sorgo (CNPMS) |
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