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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
23/01/2006 |
Data da última atualização: |
29/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SILVA, R. P. da; LOGUERCIO, L. L.; PAIVA, E. |
Afiliação: |
EMBRAPA-CNPMS. |
Título: |
Caracterização dos padrões protéicos do endosperma do milho e sua relação com a estrutura física do grão. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
Ciência e Agrotecnologia, Lavras, v. 24, n. 3, p. 567-575, 2000. |
Idioma: |
Português |
Conteúdo: |
The endosperm protein patterns of an exotic maize mutant genotype (BOL II), with opaque and soft endosperm, and a single hybrid (paternal) line of maize cv. BR201, with hard and vitreous endosperm, were evaluated using PAGE and laser densitometry. The protein patterns of the F1, F2 and F3 generations from these crosses and other exotic genotypes were studied. Results showed that endosperm density is a monogenic trait. Analyses for the F3 generation revealed a possible association between the polypeptide pattern obtained for the endosperm and its opaque/vitreous phenotype, which may serve as a molecular marker for this trait. |
Palavras-Chave: |
Maize. |
Thesaurus Nal: |
endosperm; genetics; hybrids. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66787/1/Caracterizacao-padroes.pdf
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Marc: |
LEADER 01215naa a2200193 a 4500 001 1489142 005 2018-05-29 008 2000 bl uuuu u00u1 u #d 100 1 $aSILVA, R. P. da 245 $aCaracterização dos padrões protéicos do endosperma do milho e sua relação com a estrutura física do grão.$h[electronic resource] 260 $c2000 520 $aThe endosperm protein patterns of an exotic maize mutant genotype (BOL II), with opaque and soft endosperm, and a single hybrid (paternal) line of maize cv. BR201, with hard and vitreous endosperm, were evaluated using PAGE and laser densitometry. The protein patterns of the F1, F2 and F3 generations from these crosses and other exotic genotypes were studied. Results showed that endosperm density is a monogenic trait. Analyses for the F3 generation revealed a possible association between the polypeptide pattern obtained for the endosperm and its opaque/vitreous phenotype, which may serve as a molecular marker for this trait. 650 $aendosperm 650 $agenetics 650 $ahybrids 653 $aMaize 700 1 $aLOGUERCIO, L. L. 700 1 $aPAIVA, E. 773 $tCiência e Agrotecnologia, Lavras$gv. 24, n. 3, p. 567-575, 2000.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
10/11/2023 |
Data da última atualização: |
15/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
GIROTO, A. S.; VALLE, S. F.; BORGES, R.; COLNAGO, L. A.; RIBEIRO, T. S.; JABLONOWSKI N. D.; RIBEIRO, C.; MATTOSO, L. H. C. |
Afiliação: |
Institute of Bio- and Geosciences, IBG-2: Plant Sciences; LUIZ ALBERTO COLNAGO, CNPDIA; Federal University of São Carlos; Institute of Bio- and Geosciences, IBG-2: Plant Sciences; CAUE RIBEIRO DE OLIVEIRA, CNPDIA; LUIZ HENRIQUE CAPPARELLI MATTOSO, CNPDIA. |
Título: |
Revealing the Structure Formation on Polyglycerol Citrate Polymers - An Environmentally Friendly Polyester as a Seed-Coating Material. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Polymers, v. 15, 4303, 2023. |
Páginas: |
16 p. |
DOI: |
https://doi.org/10.3390/polym15214303 |
Idioma: |
Português |
Conteúdo: |
Abstract: A detailed structural investigation of a promising bio-based polymer, polyglycerol citrate polyester, obtained by the bulk polycondensation of glycerol (Gly) against citric acid (Cit) under mild reaction was performed. The reaction in conditions with and without catalyst use (sulfuric acid, H2SO4 ) was investigated, showing evidence that it is possible to modify the polymer solubility according to the ratio and catalyst utilization. 13C and 1H NMR indicated that synthesis catalyzed with Cit excess leads to higher esterification degrees of citrate groups. In contrast, the Gly moieties are more prominent in catalyzed polymers regardless of the excess monomers. Overall, a successful conversion of Gly and Cit into polyesters was attained even without catalysis, enabling a simple route for the large-scale production of this green material to be used as a coating material. This polymer has been shown to be well-suited for coating seeds and might be a promising material for similar agricultural applications. Tests on soybean seed coating with a PGCit solution of 75% indicated that the seed quality and germination rate were not affected by the PGCit coating, concluding that this polymer is suitable for this application. |
Palavras-Chave: |
Coating polymer; Polycondensation; Polyglycerol; Sustainable polymer. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158176/1/P-Revealing-the-Structure-Formation-on-Polyglycerol-Citrate.pdf
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Marc: |
LEADER 02075naa a2200277 a 4500 001 2158176 005 2024-01-15 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3390/polym15214303$2DOI 100 1 $aGIROTO, A. S. 245 $aRevealing the Structure Formation on Polyglycerol Citrate Polymers - An Environmentally Friendly Polyester as a Seed-Coating Material.$h[electronic resource] 260 $c2023 300 $a16 p. 520 $aAbstract: A detailed structural investigation of a promising bio-based polymer, polyglycerol citrate polyester, obtained by the bulk polycondensation of glycerol (Gly) against citric acid (Cit) under mild reaction was performed. The reaction in conditions with and without catalyst use (sulfuric acid, H2SO4 ) was investigated, showing evidence that it is possible to modify the polymer solubility according to the ratio and catalyst utilization. 13C and 1H NMR indicated that synthesis catalyzed with Cit excess leads to higher esterification degrees of citrate groups. In contrast, the Gly moieties are more prominent in catalyzed polymers regardless of the excess monomers. Overall, a successful conversion of Gly and Cit into polyesters was attained even without catalysis, enabling a simple route for the large-scale production of this green material to be used as a coating material. This polymer has been shown to be well-suited for coating seeds and might be a promising material for similar agricultural applications. Tests on soybean seed coating with a PGCit solution of 75% indicated that the seed quality and germination rate were not affected by the PGCit coating, concluding that this polymer is suitable for this application. 653 $aCoating polymer 653 $aPolycondensation 653 $aPolyglycerol 653 $aSustainable polymer 700 1 $aVALLE, S. F. 700 1 $aBORGES, R. 700 1 $aCOLNAGO, L. A. 700 1 $aRIBEIRO, T. S. 700 1 $aJABLONOWSKI N. D. 700 1 $aRIBEIRO, C. 700 1 $aMATTOSO, L. H. C. 773 $tPolymers$gv. 15, 4303, 2023.
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