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Registros recuperados : 23 | |
2. | | MARCHIORO, C. A.; FISCHER, M. L.; SILVA, E. M. da. Desenvolvimento pos-embrionario de Loxosceles intermedia Mello-Leitao, 1934, L. laeta (Nicolet, 1849) e L. gaucho Gertsch. 1967 (Araneae: Sicariidae) criadas sob condicoes de alimentacao monoespecifica. Biotemas: Revista do Centro de Ciencias Biologicas da UFSC, Florianopolis, v. 18, n. 1, p. 93-112, maio 2005. Biblioteca(s): Epagri-Sede. |
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4. | | SILVA, E. M. da; SAMPAIO, L. A.; MARTINS, G. B.; ROMANO, L. A.; TESSER, M. B. Desempenho zootécnico e custos de alimentação de juvenis de tainha submetidos à restrição alimentar. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 8, p. 906-912, ago. 2013. Biblioteca(s): Epagri-Sede. |
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7. | | MIRANDA, M.M.M.; PICANCO, M.C.; ZANUNCIO, J.C.; BACCI, L.; SILVA, E.M.da. Impact of integrated pest management on the population of leafminers, fruit borers, and natural enemies in tomato. Ciencia Rural, Santa Maria, v.35, n.1, p.204-208, jan/fev. 2005. Biblioteca(s): Epagri-Sede. |
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10. | | SANTOS, G. G.; MARCHÃO, R. L.; SILVA, E. M. da; SILVEIRA, P. M. da; BECQUER, T. Qualidade física do solo sob sistemas de integração lavoura-pecuária. Pesquisa Agropecuária Brasileira, Brasília, v. 46, n. 10, p. 1339-1348, out. 2011. Biblioteca(s): Epagri-Sede. |
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13. | | NUNES, A. D.; VAZ, A. C. N.; RASPANTINI, L. E.; SILVA, E. M. da; ALBUQUERQUE, R. de. Desempenho e morfologia intestinal de frangos de corte alimentados com rações contendo aditivos alternativos a antimicrobianos. Brazilian Journal of Veterinary Research and Animal Science, São Paulo, v. 46, n. 6, p. 500-506, 2009. Biblioteca(s): Epagri-Sede. |
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14. | | NASCIMENTO, I.A.; COSTA, J.B.; SANTANA, C.F.; PEREIRA, S.A.; SILVA, E.M. da; ARAUJO, A.M.S. Dinamica de alteracao de parametros ambientais em area estuarina tropical: implicacoes para o cultivo de camaroes em gaiolas. In: SIMPOSIO BRASILEIRO DE AQUICULTURA, 11. ENCONTRO SULBRASILEIRO DE AQUICULTURA, 4. ENCONTRO CATARINENSE DE AQUICULTURA, 5. FESTIVAL NACIONAL DA OSTRA E DA CULTURA ACORIANA, 2, 2000, Florianopolis,SC. Anais... Florianopolis: BMLP, 2000. CD-ROM. Biblioteca(s): Epagri-Sede. |
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15. | | PICANCO, M. C.; SEMEAO, A. A.; GALVAO, J. C. C.; SILVA, E. M. da; BARROS, E. C. de. Fatores de perdas em cultivares de milho safrinha. Acta Scientiarum: Agronomy, Maringa, v. 26, n. 2, p. 161-167, abr./jun. 2004 Biblioteca(s): Epagri-Sede. |
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16. | | BASTOS, E. A.; NASCIMENTO, S. P. do; SILVA, E. M. da; FREIRE FILHO, F. R.; GOMIDE, R. L. Identification of cowpea genotypes for drought tolerance. Revista Ciência Agronômica, Fortaleza, v. 42, n. 1, p. 100-107, jan./mar. 2011. Biblioteca(s): Epagri-Sede. |
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19. | | MOURA, M.F.de; PICANCO, M.C.; SILVA, E.M.da; GUEDES, R.N.C.; PEREIRA, J.L. Plano de amostragem do biotipo B de Bemisia tabaci na cultura do pepino. Pesquisa Agropecuaria Brasileira, Brasilia, v.38, n.12, p.1357-1363, dez. 2003. Biblioteca(s): Epagri-Sede. |
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20. | | FUNARI JUNIOR, P.; ALBUQUERQUE, R. de; ALVES, F. R.; MURAROLLI, V. D. A.; TRINDADE NETO, M. A. da; SILVA, E. M. da. Diferentes fontes e níveis de selênio sobre o desempenho de frangos de corte. Brazilian Journal of Veterinary Research and Animal Science, São Paulo, SP, v. 47 n. 5, p. 380-384, 2010. Biblioteca(s): Epagri-Sede. |
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Registros recuperados : 23 | |
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Registro Completo
Biblioteca(s): |
Epagri-Sede. |
Data corrente: |
23/08/2013 |
Data da última atualização: |
23/08/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
PERES, L. E. P.; KERBAUY, G. B.; SALATINO, A.; ZAFFARI, G. R.; MERCIER, H. |
Título: |
Effects of Auxin, Cytokinin and Ethylene Treatments on the Endogenous Ethylene and Auxin-to-cytokinins Ratio Related to direct Root Tip Conversion of Catasetum fimbriatum Lindl. (Orchidaceae) into Buds. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Journal of Plant Physiology, USA, v. 155, p. 551-555, 1999. |
Idioma: |
Português |
Conteúdo: |
The present investigation attempts to correlate the effect of the exogenous auxins, cyrokinins and ethylene with rhe endogenous ethylene and auxin-ro-cytokinin ratio, and with the direct root-to-bud conversion in Catasetum fimbriatum. lncubation of root tips with IAA and NAA strongly inhibited both root elongation and bud formation. On the other hand, treatment with IBA resulted in a conspicuous stirnulation of longitudinal root growth, while bud formation was retarded. High levels of exogenous zearin, iP and BA enhanced bud formation, and inhibited root growth. Ethylene production was measured in IAA, IBA and zeatin-treated roots. AlI growth regulators elicited ethylene evolution, which decreased considerably along the period of incubation. Addition of AVG to the media reduced ethylene evolution. Endogenous auxin, cytokinins, and ABA conrents were determined by means of HPLC and ELISA rnethods in root tips of C. fimbriatum pre-incubated with ethylene (CEPA) and cyrokinin (iP). Both exogenous substances stimulated bud formation and conduced to an endogenous IAAlCks rario favourable to Cks. From rhese results it is proposed that the stimulatory effect of exogenous Cks and ethylene on root-to-bud conversion of C. fimbriatum seems to be mediated by rhe establishment of an endogenous auxin-to-cytokinins balance favourable to shoot formation. |
Palavras-Chave: |
Orchid; Organogenesis; Plant hormones; Root meristem. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02102naa a2200217 a 4500 001 1118892 005 2013-08-23 008 1999 bl uuuu u00u1 u #d 100 1 $aPERES, L. E. P. 245 $aEffects of Auxin, Cytokinin and Ethylene Treatments on the Endogenous Ethylene and Auxin-to-cytokinins Ratio Related to direct Root Tip Conversion of Catasetum fimbriatum Lindl. (Orchidaceae) into Buds.$h[electronic resource] 260 $c1999 520 $aThe present investigation attempts to correlate the effect of the exogenous auxins, cyrokinins and ethylene with rhe endogenous ethylene and auxin-ro-cytokinin ratio, and with the direct root-to-bud conversion in Catasetum fimbriatum. lncubation of root tips with IAA and NAA strongly inhibited both root elongation and bud formation. On the other hand, treatment with IBA resulted in a conspicuous stirnulation of longitudinal root growth, while bud formation was retarded. High levels of exogenous zearin, iP and BA enhanced bud formation, and inhibited root growth. Ethylene production was measured in IAA, IBA and zeatin-treated roots. AlI growth regulators elicited ethylene evolution, which decreased considerably along the period of incubation. Addition of AVG to the media reduced ethylene evolution. Endogenous auxin, cytokinins, and ABA conrents were determined by means of HPLC and ELISA rnethods in root tips of C. fimbriatum pre-incubated with ethylene (CEPA) and cyrokinin (iP). Both exogenous substances stimulated bud formation and conduced to an endogenous IAAlCks rario favourable to Cks. From rhese results it is proposed that the stimulatory effect of exogenous Cks and ethylene on root-to-bud conversion of C. fimbriatum seems to be mediated by rhe establishment of an endogenous auxin-to-cytokinins balance favourable to shoot formation. 653 $aOrchid 653 $aOrganogenesis 653 $aPlant hormones 653 $aRoot meristem 700 1 $aKERBAUY, G. B. 700 1 $aSALATINO, A. 700 1 $aZAFFARI, G. R. 700 1 $aMERCIER, H. 773 $tJournal of Plant Physiology, USA$gv. 155, p. 551-555, 1999.
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