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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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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
01/04/2008 |
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Data da última atualização: |
01/04/2008 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
AQUINO, M. F. S.; BORGES, M.; LAUMANN, R. A.; MORAES, M. C. B. |
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Afiliação: |
M. F. S. Aquino, Universidade Católica de Brasília; Miguel Borges, Embrapa Recursos Genéticos e Biotecnologia; Raul Alberto Laumann, Embrapa Recursos Genéticos e Biotecnologia; Maria Carolina Blassioli Moraes, Embrapa Recursos Genéticos e Biotecnologia. |
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Título: |
Efeito dos componentes dos voláteis induzidos por herbívoros em soja no comportamento do parasitóide de ovos Telenomus podisi (Hymenoptera: Scelionidae). |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 10., 2007, Brasília, DF. Inovar para preservar a vida. Resumos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2007. |
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Série: |
(Embrapa Recursos Genéticos e Biotecnologia. Documentos, 250). |
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Idioma: |
Português |
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Notas: |
ID 569. |
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Palavras-Chave: |
Identificaçao de componente; Interações tri-tróficas; Mistura da voláteis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00832nam a2200193 a 4500
001 1189515
005 2008-04-01
008 2007 bl uuuu u01u1 u #d
100 1 $aAQUINO, M. F. S.
245 $aEfeito dos componentes dos voláteis induzidos por herbívoros em soja no comportamento do parasitóide de ovos Telenomus podisi (Hymenoptera$bScelionidae).
260 $aIn: SIMPÓSIO DE CONTROLE BIOLÓGICO, 10., 2007, Brasília, DF. Inovar para preservar a vida. Resumos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia$c2007
490 $a(Embrapa Recursos Genéticos e Biotecnologia. Documentos, 250).
500 $aID 569.
653 $aIdentificaçao de componente
653 $aInterações tri-tróficas
653 $aMistura da voláteis
700 1 $aBORGES, M.
700 1 $aLAUMANN, R. A.
700 1 $aMORAES, M. C. B.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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