| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Trigo. |
|
Data corrente: |
10/01/2010 |
|
Data da última atualização: |
10/06/2013 |
|
Autoria: |
SILVA, N. S. de. |
|
Afiliação: |
Nihal S. de Silva, Division of Life Sciences, Scarborough College, University of Toronto. |
|
Título: |
Phospholipid and fatty acid metabolism in relation to hardiness and vernalization in wheat during low temperature adaptation to growth. |
|
Ano de publicação: |
1978 |
|
Fonte/Imprenta: |
Zeitschrift für Pflanzenphysiologie, Berlin, v. 86, n. 4, p. 313-322, 1978. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The biochemical mechanism of the vrn1 gene action in the vernalization response in two isogenic lines of wheat, spring (D) and winter (C) was demonstrated to involve a higher rate of unsaturated phospholopid synthesis during 5-6 week period of growth at 2 °C in the winter genotype (C) compared to the spring (D). To further characterize the phospholipid metabolism in the two genotypes, incorporation of [32P]-orthophosphate and [14C]-acetate into tissue lipids of the two genotypes was followed during germination and growth at 2 °C and 25 °C. The pattern of [32P]-orthophosphate and [14C]-acetate into lipids of Triple Dirk (D) and (C) grown at 2 °C showed clearly that there was no significant difference in phospholipid synthesis up to 5 weeks of growth. However during the critical vernalization period of 5-6 weeks, the winter genotype increased linearly its rate of [32P] incorporation into phospholipids while the spring genotype with no vernalization response showed nearly a four-fold decrease in its rate of [32P] incorporation. During the same period, the 14C incorporation increased four-fold in the winter genotype with greater proportion of the unsaturated fatty acids. These changes confirm and extend the thesis that the biochemical mechanism of vrn1 gene function appears to act by stimulating the synthesis of unsaturated membrane phospholipids during the critical 5-6 weeks period of vernalization. |
|
Palavras-Chave: |
Adaptação. |
|
Thesagro: |
Trigo; Vernalização. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01941naa a2200157 a 4500
001 1830252
005 2013-06-10
008 1978 bl --- 0-- u #d
100 1 $aSILVA, N. S. de
245 $aPhospholipid and fatty acid metabolism in relation to hardiness and vernalization in wheat during low temperature adaptation to growth.
260 $c1978
520 $aThe biochemical mechanism of the vrn1 gene action in the vernalization response in two isogenic lines of wheat, spring (D) and winter (C) was demonstrated to involve a higher rate of unsaturated phospholopid synthesis during 5-6 week period of growth at 2 °C in the winter genotype (C) compared to the spring (D). To further characterize the phospholipid metabolism in the two genotypes, incorporation of [32P]-orthophosphate and [14C]-acetate into tissue lipids of the two genotypes was followed during germination and growth at 2 °C and 25 °C. The pattern of [32P]-orthophosphate and [14C]-acetate into lipids of Triple Dirk (D) and (C) grown at 2 °C showed clearly that there was no significant difference in phospholipid synthesis up to 5 weeks of growth. However during the critical vernalization period of 5-6 weeks, the winter genotype increased linearly its rate of [32P] incorporation into phospholipids while the spring genotype with no vernalization response showed nearly a four-fold decrease in its rate of [32P] incorporation. During the same period, the 14C incorporation increased four-fold in the winter genotype with greater proportion of the unsaturated fatty acids. These changes confirm and extend the thesis that the biochemical mechanism of vrn1 gene function appears to act by stimulating the synthesis of unsaturated membrane phospholipids during the critical 5-6 weeks period of vernalization.
650 $aTrigo
650 $aVernalização
653 $aAdaptação
773 $tZeitschrift für Pflanzenphysiologie, Berlin$gv. 86, n. 4, p. 313-322, 1978.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Trigo (CNPT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 65 | |
| 5. |  | ALMEIDA, M dos S. de; FREITAS, K. M. de; OLIVEIRA, L. P.; OLIVEIRa, L. P.; GUERRA, F. da R.; DOLDER, M. A.; PIMENTEL, E. R. Acupunture increases the diameter and reorganisation of collagen fibrils during rat tendon healing. Acupunture in Medicine, v. 33, n. 1, p. 51-57, 2015| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agrobiologia. |
|   |
| 12. | | OLIVEIRA, L. P. de; LIMA, C. G. de; SIQUEIRA, M. C.; CASTRO, V. L. S. S. de. Ajuste de modelo heteroscedástico em estudo toxicológico usando o SAS. Revista da Estatística UFOP, Ouro Preto, v. 3, n. 3, 2014. Edição dos trabalhos apresentados como pôsteres na 59ª Reunião Anual da Regional Brasileira da Sociedade Internacional de Biometria, Ouro Preto, 2014. p. 49-53.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Meio Ambiente. |
|  |
| 14. | | SOUZA, G. D.; OLIVEIRA, L. P. S.; SILVA, R. A. da; ALMEIDA, L. M.; SILVA, V. B.; ARAÚJO-SIQUEIRA, M. Inventário da fauna de coccinellidae (Coleoptera, Insecta) do Estado do Amapá. In: SIMPÓSIO DE CONTROLE BIOLÓGICO, 9., 2005, Recife. Anais... Recife: SEB, 2005. p. 173. Trabalho n. 048.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
| |
| 18. | | SANTOS, E. F. dos; ARAUJO, E. de O.; CAMACHO, M. A.; CÂMARA, A. P.; OLIVEIRA, L. P. de. Produção de biomassa por genótipos de Gossypium barbadense em resposta ao fosforo. In: CONGRESSO BRASILEIRO DO ALGODÃO, 8.; COTTON EXPO, 1., 2011, São Paulo. Evolução da cadeia para construção de um setor forte: Anais. Campina Grande, PB: Embrapa Algodão, 2011. p.1645-1650| Biblioteca(s): Embrapa Algodão. |
| |
| 19. | | SEVERIANO, C. E.; APARICIO, P. da S.; SOTTA, E. D.; GUEDES, M. C.; OLIVEIRA, L. P. dos S. Similaridade da regeneração natural na Floresta Estadual do Amapá, Flota/AP, Amapá, Brasil. In: CONGRESSO AMAPAENSE DE INICIAÇÃO CIENTÍFICA, 2.; MOSTRA DE TCC's, 6.; EXPOSIÇÃO DE PESQUISA CIENTÍFICA, 2., 2010, Macapá. Livro de resumos... Macapá: SETEC: Embrapa Amapá: UEAP, 2011. p. 258.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
| |
| 20. | | ARAÚJO, E. de O.; CAMACHO, M. A.; SANTOS, E. F. dos; CÂMARA, A. P.; OLIVEIRA, L. P. de. Resposta do algodoeiro cultivado sob diferentes concentrações de BORO e ZINCO. In: CONGRESSO BRASILEIRO DO ALGODÃO, 8.; COTTON EXPO, 1., 2011, São Paulo. Evolução da cadeia para construção de um setor forte: Anais. Campina Grande, PB: Embrapa Algodão, 2011. p.1695-1701| Biblioteca(s): Embrapa Algodão. |
| |
| Registros recuperados : 65 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
