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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
14/11/2016 |
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Data da última atualização: |
14/11/2016 |
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Autoria: |
SOUZA, I. R. P. de; MACADAM, J. W. |
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Afiliação: |
ISABEL REGINA PRAZERES DE SOUZA, CNPMS; Jennifer W. MacAdam, Utah State University. |
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Título: |
Gibberellic acid and dwarfism effects on the growth dynamics of B73 maize (Zea mays L.) leaf blades: a transient increase in apoplastic peroxidase activity precedes cessation of cell elongation. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Journal of Experimental Botany, London, v. 52, n. 361, p. 1673-1682, Aug. 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
The relationship between apoplastic peroxidase (EC 1.11.1.7) activity and cessation of growth in maize) Zea mays L.) leaf blades was investigated by altering elongation zone length. Apoplastic peroxidase activity in the elongation and secondary cell wall deposition zones of elongating leaf blades of the maize inbred line B73 was used as a control and compared to leaves of the dwarf mutant D8-81127, a near-isogenic line of B73 unresponsive to gibberellins, and to leaves of B73 plants to which gibberellic acid (GA 3) had been applied via root uptake. Elongation zone length was increased by treatment with GA 3 through an increase in cell number as well as increased final cell length. The shorter elongation zone of dwarf leaves occurred primarily through reduced final cell length. Although elongation zone length differed among dwarf, control, and GA 3 -treated leaf blades, in all three treatments a transient increase in apoplastic peroxidase activity preceded a reduction in the segmental elongation rate in leaves. A peroxidase isoenzyme with p I7.0 occurred in the leaf elongation zone during growth deceleration in all three treatments, and its activity decreased as growth displaced tissue into the region of secondary cell wall deposition. Growth cessation for all treatments coincided with the first appearance of peroxidase isozymes with pIs of 5.6 and 5.7. Based on the activity of particular isozymes relative to growth and differentiation, the p I7.0 isoenzyme is most likely to be involved in cessation of cell elongation, while isozymes with pIs 5.6 and 5.7 are likely to be active in lignification. MenosThe relationship between apoplastic peroxidase (EC 1.11.1.7) activity and cessation of growth in maize) Zea mays L.) leaf blades was investigated by altering elongation zone length. Apoplastic peroxidase activity in the elongation and secondary cell wall deposition zones of elongating leaf blades of the maize inbred line B73 was used as a control and compared to leaves of the dwarf mutant D8-81127, a near-isogenic line of B73 unresponsive to gibberellins, and to leaves of B73 plants to which gibberellic acid (GA 3) had been applied via root uptake. Elongation zone length was increased by treatment with GA 3 through an increase in cell number as well as increased final cell length. The shorter elongation zone of dwarf leaves occurred primarily through reduced final cell length. Although elongation zone length differed among dwarf, control, and GA 3 -treated leaf blades, in all three treatments a transient increase in apoplastic peroxidase activity preceded a reduction in the segmental elongation rate in leaves. A peroxidase isoenzyme with p I7.0 occurred in the leaf elongation zone during growth deceleration in all three treatments, and its activity decreased as growth displaced tissue into the region of secondary cell wall deposition. Growth cessation for all treatments coincided with the first appearance of peroxidase isozymes with pIs of 5.6 and 5.7. Based on the activity of particular isozymes relative to growth and differentiation, the p I7.0 isoenzyme is most likely to ... Mostrar Tudo |
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Thesagro: |
Ácido giberelico; Milho; Peroxidase. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02260naa a2200169 a 4500
001 2056344
005 2016-11-14
008 2001 bl uuuu u00u1 u #d
100 1 $aSOUZA, I. R. P. de
245 $aGibberellic acid and dwarfism effects on the growth dynamics of B73 maize (Zea mays L.) leaf blades$ba transient increase in apoplastic peroxidase activity precedes cessation of cell elongation.$h[electronic resource]
260 $c2001
520 $aThe relationship between apoplastic peroxidase (EC 1.11.1.7) activity and cessation of growth in maize) Zea mays L.) leaf blades was investigated by altering elongation zone length. Apoplastic peroxidase activity in the elongation and secondary cell wall deposition zones of elongating leaf blades of the maize inbred line B73 was used as a control and compared to leaves of the dwarf mutant D8-81127, a near-isogenic line of B73 unresponsive to gibberellins, and to leaves of B73 plants to which gibberellic acid (GA 3) had been applied via root uptake. Elongation zone length was increased by treatment with GA 3 through an increase in cell number as well as increased final cell length. The shorter elongation zone of dwarf leaves occurred primarily through reduced final cell length. Although elongation zone length differed among dwarf, control, and GA 3 -treated leaf blades, in all three treatments a transient increase in apoplastic peroxidase activity preceded a reduction in the segmental elongation rate in leaves. A peroxidase isoenzyme with p I7.0 occurred in the leaf elongation zone during growth deceleration in all three treatments, and its activity decreased as growth displaced tissue into the region of secondary cell wall deposition. Growth cessation for all treatments coincided with the first appearance of peroxidase isozymes with pIs of 5.6 and 5.7. Based on the activity of particular isozymes relative to growth and differentiation, the p I7.0 isoenzyme is most likely to be involved in cessation of cell elongation, while isozymes with pIs 5.6 and 5.7 are likely to be active in lignification.
650 $aÁcido giberelico
650 $aMilho
650 $aPeroxidase
700 1 $aMACADAM, J. W.
773 $tJournal of Experimental Botany, London$gv. 52, n. 361, p. 1673-1682, Aug. 2001.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 138 | |
| 8. |  | BRESSANI, F. A.; TIZIOTO, P. C.; VIEIRA, L.; ZAROS, L. G.; MEIRELLES, S. L.; REGITANO, L. C. de A. Prospecção de SNPs no gene TNFa e sua possível associação à verminose gastrintestinal em caprinos. In: SIMPÓSIO BRASILEIRO DE MELHORAMENTO ANIMAL, 9., 2012, João Pessoa. Anais... João Pessoa: SBMA, 2012. 3 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 9. | | ROSA, K. de O. da; TIZIOTO, P. C.; COUTINHO, L. L.; MOURÃO, G. B.; REGITANO, L. C. de A. Seleção de genes candidatos a referência para estudos de expressão gênica por meio de análises de RNA-Seq e qPCR. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 6., 2014, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2014. p. 27. (Embrapa Instrumentação. Documentos, 57) Editores técnicos: João de Mendonça Naime, Caue Ribeiro, Maria Alice Martins, Elaine Cristina Paris, Paulino Ribeiro Villas Boas, Ladislau Marcelino Rabello.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 10. | | MUDADO, M. de A.; REGITANO, L. C. de A.; SIQUEIRA, F.; ROSA, A. do N.; HIGA, R.; TIZIOTO, P. C. Finding a minimal set of SNPs for paternity identification in Nelore cattle. In: INTERNATIONAL CONFERENCE OF THE BRAZILIAN ASSOCIATION FOR BIOINFORMATICS AND COMPUTATIONAL BIOLOGY, 7.; INTERNATIONAL CONFERENCE OF THE IBEROAMERICAN SOCIETY FOR BIOINFORMATICS, 3., 2011, Florianópolis. Proceedings... Florianópolis: Associação Brasileira de Bioinformática e Biologia Computacional, 2011. Não paginado. X-MEETING, 2011.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Gado de Corte. |
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| 11. | | GOUVEIA, J. J. S.; SANTIAGO, A. C.; IBELLI, A. M. G.; TIZIOTO, P. C.; ESTEVES, S. N.; BARIONI JUNIOR, W.; REGITANO, L. C. de A. Associação entre microssatélite localizado no cromossomo OAR3 e peso ao abate de ovinos pertencentes a três grupos genéticos. In: CONGRESSO BRASILEIRO DE GENÉTICA, 54., 2008, Salvador. Resumos... Salvador: SBG, 2008 p. 214| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 12. | | TIZIOTO, P. C.; VENERONI, G. B.; MEIRELLES, S. L.; GASPARIN, G.; IBELLI, A. M. G.; OLIVIERA, H. N.; ALENCAR, M. M. de; REGITANO, L. C. de A. Associação entre polimorfismos de única base (SNP) dos genes PPARGC1A e PSMC1 com espessura de gordura subcutânea em animais da raça Canchim. In: CONGRESSO BRASILEIRO DE GENÉTICA, 55., 2009, Águas de Lindóia. Anais... Águas de Lindóia: SBG, 2009. p. 210.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 15. | | DINIZ, W. J. da S.; TIZIOTO, P. C.; MOKRY, F. B.; MUDADU, M. de A.; SOUZA, M. M. de; REGITANO, L. C. de A. Análise de haplótipos em QTL associado ao conteúdo de ferro no músculo de bovinos Nelore. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 6., 2014, São Carlos, SP. Anais... São Carlos: Embrapa Instrumentação: Embrapa Pecuária Sudeste, 2014. p. 28. (Embrapa Instrumentação. Documentos, 57) Editores técnicos: João de Mendonça Naime, Caue Ribeiro, Maria Alice Martins, Elaine Cristina Paris, Paulino Ribeiro Villas Boas, Ladislau Marcelino Rabello.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 16. | | SERRA, V.; TIZIOTO, P. C.; OLIVEIRA, P. S. N. de; LIMA, A. O. de; GASPARIN, G.; COUTINHO, L. L.; MOURÃO, G. B.; REGITANO, L. C. de A. Análise de qualidade de RNA para estudo do perfil transcriptômico de animais extremos para eficiência alimentar da raça Nelore. In: JORNADA CIENTÍFICA - EMBRAPA SÃO CARLOS, 5., 2013, São Carlos, SP. Anais... São Carlos, SP: Embrapa Pecuária Sudeste: Embrapa Instrumentação , 2013. p. 12 (Embrapa Pecuária Sudeste. Documentos, 110). Editado por Ana Rita de Araújo nogueira, simone Cristina Méo Nicura| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 17. | | DONATONI, F. A. B.; TIZIOTO, P. C.; VIEIRA, L. da S.; ZAROS, L. G.; MEIRELLES, S. L.; REGITANO, L. C. de A. Prospecção de SNPs no gene TNFa e sua possível associação à verminose gastrintestinal em caprinos. In: SIMPÓSIO BRASILEIRO DE MELHORAMENTO ANIMAL, 9., 2012, João Pessoa. Anais... João Pessoa: SBMA, 2012. 3 f. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 18. | | LIMA, A. O. de; MOKRY, F. B.; TIZIOTO, P. C.; MUDADU, M. de A.; HIGA, R. H.; MEIRELLES, S. L. C.; REGITANO, L. C. de A. Preliminary studies for identification of SNPs associated with ribeye area in Canchim cattle. In: INTERNATIONAL SYMPOSIUM ON ANIMAL FUNCTIONAL GENOMICS, 5., 2013, Guarujá. Programme and abstract book... [S.l.: s.n.], 2013. p. 43. ISAFG 2013. AB.36.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agricultura Digital. |
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| 19. | | LIMA, A. O. de; MOKRY, F. B.; TIZIOTO, P. C.; MUDADU, M. de A.; HIGA, R. H.; MEIRELLES, S. L.; REGITANO, L. C. de A. Preliminary studies for identification of SNPs associated with ribeye area in Canchim cattle. In: INTERNATIONAL SYMPOSIUM ON ANIMAL FUNCTIONAL GENOMICS, 5., 2013, Guarujá. Abstract... Guarujá:[ s.n.], 2013. AB.36.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 20. | | IBELLI, A. M. G.; VENERONI, G. B.; TIZIOTO, P. C.; COUTINHO, L. L.; OLIVEIRA, M. C. de S.; REGITANO, L. C. de A. Seleção de genes constitutivos para estudos de expressão gênica em Iinfonodo de bovinos infestados com carrapato Rhipicephalus (B.) microplus. In: JORNADA CIENTÍFICA-EMBRAPA SÃO CARLOS, 2009, São Carlos, SP. Anais... São Carlos: Embrapa Pecuária Sudeste: Embrapa Instrumentação Agropecuária, 2009. Editado por Luiz Francisco Zafalon, Simone Cristina Méo Niciura. (Embrapa Pecuária Sudeste. Documento 90)| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 138 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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