| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
06/04/2004 |
|
Data da última atualização: |
27/07/2007 |
|
Autoria: |
CAPELETI, I.; BONINI, E. A.; FERRARESE, M. L. L.; TEIXEIRA, A. C. N.; KRZYZANOWSKI, F. C.; FERRARESE FILHO, O. |
|
Título: |
Lignin of soybean (Glycine max (L.) Merrill) seed coat and their relatiosnhips with resistance to mechanical damage. |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. |
|
Páginas: |
p. 236-237. |
|
Série: |
(Embrapa Soja. Documentos, 228).
|
|
Idioma: |
Inglês |
|
Notas: |
Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi. |
|
Conteúdo: |
Lignin is, second to cellulose, the most abundant organic compound in the terrestrial biosphere. It is a complex polymer of hydroxylated and methoxylated phenylpropane units, linked via oxidative coupling catalyzed by peroxidases. It is a major constituent of cell walls and provides to these cells rigidity for structural support and impermeability to water. There is considerable interest in the lignin since its deposition in the seed coat tissue provides mechanical resistance and also protects the cell against microorganisms. Mechanical damage is the most important factor that reduces soybean (Glycine max (L.) Merr.) seed quality at harvest and processing. In this context, the seed coat lignin content was found to be high in soybean cultivars with high index of resistance against mechanical damage. Using the gravimetric method, researchers of the EMBRAPA-Soja classified cultivars as follows: resistant (Doko, FT-2, Paraná and IAS-5); moderately resistant (Santa Rosa, IAC-8; Bossier and FT-10), and susceptible (Savana, Paranagoiana and Davis). It is known that many methods have been developed for the isolation of lignin and its quantitative determination, but there is no perfect method. Lignothioglycolic acid (LTGA) preparations have been considered as best suited for the isolation and quantitative assay of lignin. In this procedure, thioglycolic acid derivatization displaces lignin from its normal covalent attachments to the cell wall and enables it to be extracted from cell walls by alkali. Acidification of the alkaline extract precipitates LTGA. After being resolubilized, LTGA can be determined quantitatively by measuring its absorbance at 280 nm. Based on this methodology, the present work was carried out to determine the lignin content of seed coats of those cultivars, and to correlate the results with the index of seed mechanical damage resistance obtained by the pendulum test. The results showed that: 1. the adopted method may be used to quantify lignin in seed coats of different soybean cultivars, 2. a proportionality between lignin content and mechanical damage resistance was observed (r2 = 0.79), and 3. a lignin content in the seed coats above 0.36 g% is proposed to be a reasonable indicator of resistance against mechanical damage for soybean seeds. In conclusion, the present method may be used for screening genotypes for resistance to mechanical damage in a breeding program for soybean seed quality. MenosLignin is, second to cellulose, the most abundant organic compound in the terrestrial biosphere. It is a complex polymer of hydroxylated and methoxylated phenylpropane units, linked via oxidative coupling catalyzed by peroxidases. It is a major constituent of cell walls and provides to these cells rigidity for structural support and impermeability to water. There is considerable interest in the lignin since its deposition in the seed coat tissue provides mechanical resistance and also protects the cell against microorganisms. Mechanical damage is the most important factor that reduces soybean (Glycine max (L.) Merr.) seed quality at harvest and processing. In this context, the seed coat lignin content was found to be high in soybean cultivars with high index of resistance against mechanical damage. Using the gravimetric method, researchers of the EMBRAPA-Soja classified cultivars as follows: resistant (Doko, FT-2, Paraná and IAS-5); moderately resistant (Santa Rosa, IAC-8; Bossier and FT-10), and susceptible (Savana, Paranagoiana and Davis). It is known that many methods have been developed for the isolation of lignin and its quantitative determination, but there is no perfect method. Lignothioglycolic acid (LTGA) preparations have been considered as best suited for the isolation and quantitative assay of lignin. In this procedure, thioglycolic acid derivatization displaces lignin from its normal covalent attachments to the cell wall and enables it to be extracted from cell ... Mostrar Tudo |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03474naa a2200217 a 4500
001 1466817
005 2007-07-27
008 2004 bl uuuu u00u1 u #d
100 1 $aCAPELETI, I.
245 $aLignin of soybean (Glycine max (L.) Merrill) seed coat and their relatiosnhips with resistance to mechanical damage.
260 $c2004
300 $ap. 236-237.
490 $a(Embrapa Soja. Documentos, 228).
500 $aEditado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.
520 $aLignin is, second to cellulose, the most abundant organic compound in the terrestrial biosphere. It is a complex polymer of hydroxylated and methoxylated phenylpropane units, linked via oxidative coupling catalyzed by peroxidases. It is a major constituent of cell walls and provides to these cells rigidity for structural support and impermeability to water. There is considerable interest in the lignin since its deposition in the seed coat tissue provides mechanical resistance and also protects the cell against microorganisms. Mechanical damage is the most important factor that reduces soybean (Glycine max (L.) Merr.) seed quality at harvest and processing. In this context, the seed coat lignin content was found to be high in soybean cultivars with high index of resistance against mechanical damage. Using the gravimetric method, researchers of the EMBRAPA-Soja classified cultivars as follows: resistant (Doko, FT-2, Paraná and IAS-5); moderately resistant (Santa Rosa, IAC-8; Bossier and FT-10), and susceptible (Savana, Paranagoiana and Davis). It is known that many methods have been developed for the isolation of lignin and its quantitative determination, but there is no perfect method. Lignothioglycolic acid (LTGA) preparations have been considered as best suited for the isolation and quantitative assay of lignin. In this procedure, thioglycolic acid derivatization displaces lignin from its normal covalent attachments to the cell wall and enables it to be extracted from cell walls by alkali. Acidification of the alkaline extract precipitates LTGA. After being resolubilized, LTGA can be determined quantitatively by measuring its absorbance at 280 nm. Based on this methodology, the present work was carried out to determine the lignin content of seed coats of those cultivars, and to correlate the results with the index of seed mechanical damage resistance obtained by the pendulum test. The results showed that: 1. the adopted method may be used to quantify lignin in seed coats of different soybean cultivars, 2. a proportionality between lignin content and mechanical damage resistance was observed (r2 = 0.79), and 3. a lignin content in the seed coats above 0.36 g% is proposed to be a reasonable indicator of resistance against mechanical damage for soybean seeds. In conclusion, the present method may be used for screening genotypes for resistance to mechanical damage in a breeding program for soybean seed quality.
700 1 $aBONINI, E. A.
700 1 $aFERRARESE, M. L. L.
700 1 $aTEIXEIRA, A. C. N.
700 1 $aKRZYZANOWSKI, F. C.
700 1 $aFERRARESE FILHO, O.
773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 31 | |
| 3. |  | TEIXEIRA, A. C.; MARQUES, A. S.; FERREIRA, M. A. Caracterização bioquímica e molecular de isolados de Erwinia psidii do Distrito Federal. Fitopatologia Brasileira, v. 30, p. 58, ago. 2005. Suplemento: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 38., 2005, Brasília, DF.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
|    |
| 5. | | TEIXEIRA, A. C. O.; MARQUES, A. S. A.; FERREIRA, M. A. S. V. Caracterização de isolados de Erwinia psidii do Distrito Federal. Fitopatologia Brasileira, v. 31, suppl., ago. 2006. Anais do: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 39.; ANNUAL MEETING OF THE BRAZILIAN PHYTOPATHOLOGICAL SOCIETY, 39., 2006, Salvador, BA. p. S185.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 6. | | TEIXEIRA, A. C.; ALMEIDA, L. D.; ALBUQUERQUE, M. S. M.; MARIANTE, A. S.; EGITO, A. A. Evidências da associação do polimorfismo PIT1-HinfI com raças bovinas leiteiras. In: ENCONTRO DO TALENTO ESTUDANTIL DA EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA, 13., 2008, Brasília, DF. Anais: resumos dos trabalhos. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2008. Resumo 137. p. 187.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 12. | | CAPELETI, I.; BONINI, E. A.; FERRARESE, M de L. L.; TEIXEIRA, A. C. N.; KRZYZANOWSKI, F. C.; FERRARESE FILHO, O. Lignin content and peroxidase activity in soybean seed coat susceptible and resistant to mechanical damage Acta Physiologiae Plantarum, Kraków, v. 27, n. 1, p. 103-108, 2005.| Biblioteca(s): Embrapa Soja. |
| |
| 13. | | CAPELETI, I.; BONINI, E. A.; FERRARESE, M. L. L.; TEIXEIRA, A. C. N.; KRZYZANOWSKI, F. C.; FERRARESE FILHO, O. Lignin of soybean (Glycine max (L.) Merrill) seed coat and their relatiosnhips with resistance to mechanical damage. In: WORLD SOYBEAN RESEARCH CONFERENCE, 7.; INTERNATIONAL SOYBEAN PROCESSING AND UTILIZATION CONFERENCE, 4.; CONGRESSO BRASILEIRO DE SOJA, 3., 2004, Foz do Iguassu. Abstracts of contributed papers and posters. Londrina: Embrapa Soybean, 2004. p. 236-237. (Embrapa Soja. Documentos, 228). Editado por Flávio Moscardi, Clara Beatriz Hoffmann-Campo, Odilon Ferreira Saraiva, Paulo Roberto Galerani, Francisco Carlos Krzyzanowski, Mercedes Concordia Carrão-Panizzi.| Biblioteca(s): Embrapa Soja. |
| |
| 14. | | LIMA, M. F.; MICHEREFF FILHO, M.; SOUZA, T. A.; AMARO, G. B.; SILVA, P.; TEIXEIRA, A. C. Monitoramento de tripes de pulgões e avaliação da ocorrência de viroses em cultivares de abóbora em campo. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 46.; REUNIÃO BRASILEIRA DE CONTROLE BIOLÓGICO, 11., 2013, Ouro Preto. Expofito. Ouro Preto: UFV, 2013. 1 CD-ROM. Resumo 668-2| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
|  |
| 15. | | CARNEIRO, R. M. D. G.; TIGANO, M. S.; JORGE, C. L.; TEIXEIRA, A. C. O.; CORDEIRO, M. C. Selection and polymorphism of Pasteuria penetrans isolates in relation to Meloidogyne spp. from coffee Nematology, v. 6, n. 1, 2004, p. 37-47, 2004.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 17. | | CARVALHO, L. M. J.; TEIXEIRA, A. C.; BASTOS, P.; MOURA, M.; ROCHA, M. de M.; CARVALHO, J. L. V. de; SILVA, O.; ESMERINO, A. Biofortified cowpea beans cultivars: Centesimal Composition. In: EFFoST INTERNATIONAL CONFERENCE SHAPING THE PRODUCTION OF SUSTAINABLE, HEALTHY FOODS FOR THE FUTURE, 36., Dublin. 2022. Abstract book, p. 664, 2022. 7 a 9 November 2022.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos; Embrapa Meio-Norte. |
| |
| 18. | | PIMENTEL, M. M. L.; SANTOS, F. A.; TEIXEIRA, A. C. G.; IZZO, R. G.; LIMA, M. A.; MACEDFO, M. F.; BEZERRA, M. B. Biochemical, thermographic, and follicular responses of murine models of hormone-treated bovine ovarian renal capsule xenografts. Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 5, p. 425-431, maio 2017. Título em português: Respostas bioquímicas, termográficas e foliculares de modelos murinos tratados hormonalmente após xenotransplante de ovário bovino sob a cápsula renal.| Biblioteca(s): Embrapa Unidades Centrais. |
| |
| 19. | | ASSIS, A. S. P.; SANTOS, D. F.; MARTINS, I.; TEIXEIRA, A. C. O.; MOTA, F. C.; SOUSA, M. G.; CARNEIRO, R. M. D. G. Estabelecimento e manutenção de uma coleção criopreservada de Meloidogyne spp. In: CONGRESSO BRASILEIRO DE NEMATOLOGIA, 29., 2011, Brasília, DF. Anais... Brasília, DF: Sociedade Brasileira de Nematologia, 2011. p. 215-216.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
| |
| 20. | | GRAVINA, C. S.; SOUSA, N. C. M.; MICHEREFF FILHO, M.; LOPES, R. B.; SILVA, P. S.; TEIXEIRA, A. C. A.; MAASS, R. M.; CARVALHO, P. B. V. Eficiência de produtos alternativos sobre Tetranychus urticae e sua compatibilidade com Neoseiulus californicus em morangueiro. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 25., 2014, Goiânia. Entomologia integrada à sociedade para o desenvolvimento sustentável: anais. Goiânia: Sociedade Entomológica do Brasil, 2014. Resumo 1364| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Hortaliças. |
| |
| Registros recuperados : 31 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
