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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
19/08/2005 |
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Data da última atualização: |
06/10/2005 |
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Autoria: |
POMPELLI, M. F.; GUERRA, M. P. |
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Título: |
Micropropagation enables the mass propagation and conservation of Dyckia distachya Hassler. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Viçosa, MG, v. 5, n. 1, p. 117-123, Mar. 2005. |
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Idioma: |
Inglês |
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Conteúdo: |
The Atlantic Forest has a rich biological diversity and elevated levels of endemism in which bromeliads are frequent, but endangered. Tissue culture techniques raise high hopes for the rescue, mass propagation for commercial aims or the conservation of natural populations threatened with extinction. The present study evaluated aspects of seed-based D. distachya micropropagation. A high rate of in vitro regeneration (78.93 shoot gram-1) was obtained in response to liquid MS culture medium supplemented with benzyladenine (BA) at 2 mM after 120 days in culture, or supplemented with NAA at 2 mM, BA at 4 mM and paclobutrazol at 6 mM (133.58 shoots explant-1) after 142 days in culture. Not less than 1.5-cm-long shoots were successfully acclimatized to ex vitro conditions. D. distachya is responsive to the application of tissue culture techniques for mass propagation and conservation purposes. The use of seeds as initial explants allows the maintenance of the genetic diversity observed in the natural populations and mass regeneration is a promising technique for the conservation of this endangered bromeliad.
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Palavras-Chave: |
Bromeliads; Bromélias; Cultura de tecidos; Dyckia Distackya Hassler. |
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Thesagro: |
Micropropagação; Organogénese. |
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Thesaurus Nal: |
micropropagation; organogenesis; tissue culture. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01841naa a2200241 a 4500
001 1213591
005 2005-10-06
008 2005 bl uuuu u00u1 u #d
100 1 $aPOMPELLI, M. F.
245 $aMicropropagation enables the mass propagation and conservation of Dyckia distachya Hassler.
260 $c2005
520 $aThe Atlantic Forest has a rich biological diversity and elevated levels of endemism in which bromeliads are frequent, but endangered. Tissue culture techniques raise high hopes for the rescue, mass propagation for commercial aims or the conservation of natural populations threatened with extinction. The present study evaluated aspects of seed-based D. distachya micropropagation. A high rate of in vitro regeneration (78.93 shoot gram-1) was obtained in response to liquid MS culture medium supplemented with benzyladenine (BA) at 2 mM after 120 days in culture, or supplemented with NAA at 2 mM, BA at 4 mM and paclobutrazol at 6 mM (133.58 shoots explant-1) after 142 days in culture. Not less than 1.5-cm-long shoots were successfully acclimatized to ex vitro conditions. D. distachya is responsive to the application of tissue culture techniques for mass propagation and conservation purposes. The use of seeds as initial explants allows the maintenance of the genetic diversity observed in the natural populations and mass regeneration is a promising technique for the conservation of this endangered bromeliad.
650 $amicropropagation
650 $aorganogenesis
650 $atissue culture
650 $aMicropropagação
650 $aOrganogénese
653 $aBromeliads
653 $aBromélias
653 $aCultura de tecidos
653 $aDyckia Distackya Hassler
700 1 $aGUERRA, M. P.
773 $tCrop Breeding and Applied Biotechnology, Viçosa, MG$gv. 5, n. 1, p. 117-123, Mar. 2005.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| 7. |  | MORAES NETO, S. P. de. Comparação entre dois métodos de seleção para Pinus oocarpa. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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| 9. | | MORAES NETO, S. P. de. Fertilizantes NPK e suas origens. Agência de Notícias Primeira Hora, 20 out. 2010. Publicado também em: Página Rural, 20 out. 2010; Portal Dia de Campo, 22 out. 2010; Zoo News, out. 2010.| Tipo: Artigo de Divulgação na Mídia |
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| 11. | | MORAES NETO, S. P. de. Índices de seleção para progênies de Pinus oocarpa. In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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