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| Registros recuperados : 14 | |
| 5. |  | ZAFFARI, G. R.; PERES, L. E. P.; KERBAUY, G. B. Endogenous levels of cytokinins, indoleacetic acid, abscisic acid, and pigments in variegated somaclones of micropropagated banana leaves. Journal of Plant Growth Regulation, New York, n. 17, p. 59-61, 1998.| Biblioteca(s): Epagri-Sede. |
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| 7. | | STANCATO, G.C.; ABREU, M.F.; BERTON, R.; KERBAUY, G.B. Cultivo de plantas de Dendrobium nobile CV. Gilblanc (Orchidaceae) em substratos contendo xaxim ou casca de coniferas. In: ENCONTRO NACIONAL SOBRE SUBSTRATO PARA PLANTAS, 1., 1999, Porto Alegre, RS. Substrato para plantas: a base da producao vegetal em recipientes: anais...Porto Alegre, Genesis, 2000. p.197-201.| Biblioteca(s): Epagri-Sede. |
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| 9. | | PERES, L. E. P.; KERBAUY, G. B.; SALATINO, A.; ZAFFARI, G. R.; MERCIER, H. 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. Journal of Plant Physiology, USA, v. 155, p. 551-555, 1999.| Biblioteca(s): Epagri-Sede. |
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| 14. | | PERES, L. E. P.; MERCIER, H.; KERBAUY, G. B.; ZAFFARI, G. R. Níveis endógenos de AIA, citocininas e ABA em uma orquídea acaule e uma bromélia sem raiz, determinados por HPLC e ELISA Revista Brasileira de Fisiologia Vegetal, Campinas, SP, v. 9, n. 3, p. 169-176, 1997. ISSN, 0103-3131| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 14 | |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
20/04/2012 |
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Data da última atualização: |
20/04/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
-- - -- |
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Autoria: |
ZAFFARI, G. R.; PERES, L. E. P.; KERBAUY, G. B. |
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Afiliação: |
Epagri |
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Título: |
Endogenous levels of cytokinins, indoleacetic acid, abscisic acid, and pigments in variegated somaclones of micropropagated banana leaves. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Journal of Plant Growth Regulation, New York, n. 17, p. 59-61, 1998. |
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Idioma: |
Inglês |
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Conteúdo: |
The banana (Musa spp. AAA) micropropagation shows a high incidence of off-types, among whose variegated plants are very common. Endogenous levels of growth regulators and pigment content were measured in normal and variegated leaves of the micropropagated banana plants growing in a greenhouse. Growth regulators were separated by high pressure liquid chromatêgraphy and submitted to enzyme-linked immunosorbent assay for quantification. Pigment content was measured using the colorimetric method. Green leaves contained l.9 and 10 times more cytokinins compared with green and yellow sectors of variegated leaves, respectively. The levels of indoleacetic acid in normal leaves were significantly higher than those found in green and yelIow sectors of variegated leaves; however, the levels of abscisic acid were lower in normalleaves. The lower content of chlorophylls in variegated leaves coincided with decreased endogenous levels of cytokinins, which indicated that variegation in banana leaves may be associated with alterations in the metabolism of this growth regulator. |
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Palavras-Chave: |
Banana; Growth regulators; Pigments; Somaclonal variation. |
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Categoria do assunto: |
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Marc: |
LEADER 01620naa a2200169 a 4500
001 1075598
005 2012-04-20
008 1998 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aEndogenous levels of cytokinins, indoleacetic acid, abscisic acid, and pigments in variegated somaclones of micropropagated banana leaves.
260 $c1998
520 $aThe banana (Musa spp. AAA) micropropagation shows a high incidence of off-types, among whose variegated plants are very common. Endogenous levels of growth regulators and pigment content were measured in normal and variegated leaves of the micropropagated banana plants growing in a greenhouse. Growth regulators were separated by high pressure liquid chromatêgraphy and submitted to enzyme-linked immunosorbent assay for quantification. Pigment content was measured using the colorimetric method. Green leaves contained l.9 and 10 times more cytokinins compared with green and yellow sectors of variegated leaves, respectively. The levels of indoleacetic acid in normal leaves were significantly higher than those found in green and yelIow sectors of variegated leaves; however, the levels of abscisic acid were lower in normalleaves. The lower content of chlorophylls in variegated leaves coincided with decreased endogenous levels of cytokinins, which indicated that variegation in banana leaves may be associated with alterations in the metabolism of this growth regulator.
653 $aBanana
653 $aGrowth regulators
653 $aPigments
653 $aSomaclonal variation
773 $tJournal of Plant Growth Regulation, New York$gn. 17, p. 59-61, 1998.
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