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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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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
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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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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 47 | |
| 41. |  | CANTARUTTI, R. B.; TARRE, R.; MACEDO, R.; CADISCH, G.; REZENDE, C. de P.; PEREIRA, J. M.; BRAGA, J. M.; GOMIDE, J. A.; FERREIRA, E.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. The effect of grazing intensity and the presence of a forage legume on nitrogen dynamics in Brachiaria pastures in the Atlantic forest region of the South of Bahia, Brazil. Nutrient Cycling in Agroecossytems, Netherlands, v. 64, p. 257-271, 2002.| Biblioteca(s): Embrapa Agrobiologia. |
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| 42. | | BODDEY, R. M.; MACEDO, R.; TARRÉ, R. M.; FERREIRA, E.; OLIVEIRA, O. C. de; REZENDE, C. de P.; CANTARUTTI, R. B.; PEREIRA, J. M.; ALVES, B. J. R.; URQUIAGA, S. Nitrogen cycling in Brachiaria pastures: the key to understanding the process of pasture decline. Agriculture Ecosystems & Environment, Amsterdam, v. 103, p. 389-403, 2004.| Biblioteca(s): Embrapa Agrobiologia. |
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| 43. | | RAMALHO, I. O.; REZENDE, C. de P.; PEREIRA, J. M.; SANTOS, C. A. dos; MONTEIRO, R. C.; ALVES, B. J. R.; CARVALÇHO, I. das N. O. de; URQUIAGA, S.; BODDEY, R. M. Deposition and decomposition of litter in periods of grazing and rest of a tropical pasture under rotational grazing. Ciência Rural, v. 49, n. 12, Epub Dec. 02, 2019 Título em Português: Deposição e decomposição de serapilheira em períodos de pastejo e descanso de uma pastagem tropical sob pastejo rotativo.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 44. | | RODRIGUES, G. S.; RODRIGUES, I. A.; SIQUEIRA, E. R. de; BOTELHO, A. C.; BOTELHO, A. C.; PEREIRA, J. M.; DIAS, T.; CARVALHO, E. J. M.; NEVES, M. C.; BUSCHINELLI, C. C. de A. Estudo de caso 7.1 - Aplicação da abordagem ecossistêmica: gestão ambiental de atividades rurais no entorno de unidades de conservação visando à proteção da biodiversidade. In: ARAUJO, M. A. R.; MARQUES, C. P.; CABRAL, R. F. B. (Org.). Unidades de conservação no Brasil: o caminho da gestão para resultados. São Carlos: RiMA Editora, 2012. p. 174-187| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Meio Ambiente. |
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| 45. | | RESENDE, C. de P.; CANTARUTTI, R. B.; PEREIRA, J. M.; SANTANA, J. B.; MACEDO, R. de O.; TARRÉ, R. M.; RICHTER, M.; FERREIRA, E.; CADISCH, G.; OLIVEIRA, O. C. de; RESENDE, A. S. de; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M. Avaliação da sustentabilidade de sistemas agrícolas através de estudos do ciclo de nitrogênio. Seropédica: EMBRAPA-CNPAB, 1996. 11 p. (EMBRAPA-CNPAB. Pesquisa em Andamento, 2).| Biblioteca(s): Embrapa Agrobiologia. |
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| 46. | | VALLE, C. B. do; EUCLIDES, V. P. B.; PEREIRA, J. M.; VALÉRIO, J. R.; PAGLIARINI, M. S.; MACEDO, M. C. M.; LEITE, G. G.; LOURENÇO, A. J.; FERNANDES, C. D.; DIAS FILHO, M. B.; LEMPP, B.; POTT, A.; SOUZA, M. A. de. O capim-xaraés (Brachiaria brizantha cv. Xaraés) na diversificação de pastagens de braquiária. Campo Grande, MS: Embrapa Gado de Corte, 2004. 36 p. (Embrapa Gado de Corte. Documentos, 149).| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Gado de Corte. |
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| 47. | | SOUZA, W. dos S.; REZENDE, C. de P.; PEREIRA, J. M.; MONTEIRO, R. C.; SANTOS, C. A. dos; MACEDO, R. de O.; ALECRIM, F. B.; PINHEIRO, E. F. M.; CAMPOS, D. V. B. de; URQUIAGA, S.; ALVES, B. J. R.; BODDEY, R. M. Can N2 fixation by forage legumes build soil organic matter to rival fertilizer N in a tropical forest biome? Geoderma Regional, v. 33, e00646, Jun. 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 3 |
| Biblioteca(s): Embrapa Agrobiologia; Embrapa Solos. |
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| Registros recuperados : 47 | |
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