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| 1. |  | SANTOS, L. S. dos; GUTIERREZ, C. B. B.; PONTES, A. N.; SOUZA, A. A. de A.; MARTORAN, L. G.; SILVA JUNIOR, O. M. Geotecnologia aplicada na análise de bacias hidrográficas e rede de drenagem: estudo das bacias hidrográficas do Murucutu e Aurá, Belém, Pará. Revista SODEBRAS, v. 11, n. 124, p. 131-135, abr. 2016.| Biblioteca(s): Embrapa Amazônia Oriental. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
09/07/2013 |
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Data da última atualização: |
19/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SANTA-ROSA, S.; SOUZA, F. V. D.; VIDAL, Á. M; LEDO, C. A. da S.; JOSÉ R. F. de SANTANA. |
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Afiliação: |
SANDRA SANTA-ROSA, UEFS; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF; ÁDILA M VIDAL, UFRB; CARLOS ALBERTO DA SILVA LEDO, CNPMF; JOSÉ RF DE SANTANA, UEFS. |
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Título: |
Micropropagation of the ornamental vulnerable bromeliads Aechmea blanchetiana and Aechmea distichantha. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Horticultura Brasileira, v.31, n.1, Vitoria da Conquista Jan./Mar. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
Aechmea blanchetiana and Aechmea distichantha are Brazilian native bromeliads with great ornamental value, although none of the species are produced commercially. Therefore, market demands are met through nature predatory exploitation. This study intended to (1) evaluate the in vitro seed germination of A. blanchetiana and A. distichantha and (2) establish micropropagation protocols for both species, aiming at producing plantlets for the market, as well as to germplasm in vitro conservation. Germination experiments were carried out in completely randomized designs with two treatments (presence and absence of light) and seven and eight replications respectively for A. blanchetiana and A. distichantha. In vitro seedlings, produced under light conditions, were used as explants in the multiplication experiment (MS medium). The experimental design was again completely randomized, with treatments in factorial 2 (NAA concentrations; 0.05 and 0.5 ?M) x 2 (cytokines: BAP and KIN) x 2 (cytokine levels: 2.2 and 4.4 ?M) + 1 (control with basal MS, without growth regulators), with ten replications per treatment. We evaluated fungal and bacterial contamination, total and cumulative seed germination and number of shoots per treatment in each subculture. We observed only fungal contamination and only in A. blanchetiana (14.0%). Light favored in vitro seed germination in both species (99 and 62% respectively for A. blanchetiana and A. distichantha). MS medium + 0.5 ?M NAA + 2.2 ?M BAP resulted in the highest multiplication rate for both species, with significant contrasts between this treatment and the control in both species (105.62 more shoots in A. blanchetiana; 223.80 in A. distichantha). BAP promoted the formation of rootless shoots, while kinetin favored the formation of roots rather than shoots. A. blanchetiana and A. distichantha showed 90 and 97% of survival respectively in plantlet acclimatization. MenosAechmea blanchetiana and Aechmea distichantha are Brazilian native bromeliads with great ornamental value, although none of the species are produced commercially. Therefore, market demands are met through nature predatory exploitation. This study intended to (1) evaluate the in vitro seed germination of A. blanchetiana and A. distichantha and (2) establish micropropagation protocols for both species, aiming at producing plantlets for the market, as well as to germplasm in vitro conservation. Germination experiments were carried out in completely randomized designs with two treatments (presence and absence of light) and seven and eight replications respectively for A. blanchetiana and A. distichantha. In vitro seedlings, produced under light conditions, were used as explants in the multiplication experiment (MS medium). The experimental design was again completely randomized, with treatments in factorial 2 (NAA concentrations; 0.05 and 0.5 ?M) x 2 (cytokines: BAP and KIN) x 2 (cytokine levels: 2.2 and 4.4 ?M) + 1 (control with basal MS, without growth regulators), with ten replications per treatment. We evaluated fungal and bacterial contamination, total and cumulative seed germination and number of shoots per treatment in each subculture. We observed only fungal contamination and only in A. blanchetiana (14.0%). Light favored in vitro seed germination in both species (99 and 62% respectively for A. blanchetiana and A. distichantha). MS medium + 0.5 ?M NAA + 2.2 ?M BAP result... Mostrar Tudo |
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Palavras-Chave: |
Bromeliads; Taxa de multiplicação. |
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Thesagro: |
Aechmea fasciata; Bromélia; Bromeliaceae; Cultura de tecido; Regulador de Crescimento. |
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Thesaurus NAL: |
Tissue culture. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02742naa a2200265 a 4500
001 1961695
005 2023-05-19
008 2013 bl uuuu u00u1 u #d
100 1 $aSANTA-ROSA, S.
245 $aMicropropagation of the ornamental vulnerable bromeliads Aechmea blanchetiana and Aechmea distichantha.$h[electronic resource]
260 $c2013
520 $aAechmea blanchetiana and Aechmea distichantha are Brazilian native bromeliads with great ornamental value, although none of the species are produced commercially. Therefore, market demands are met through nature predatory exploitation. This study intended to (1) evaluate the in vitro seed germination of A. blanchetiana and A. distichantha and (2) establish micropropagation protocols for both species, aiming at producing plantlets for the market, as well as to germplasm in vitro conservation. Germination experiments were carried out in completely randomized designs with two treatments (presence and absence of light) and seven and eight replications respectively for A. blanchetiana and A. distichantha. In vitro seedlings, produced under light conditions, were used as explants in the multiplication experiment (MS medium). The experimental design was again completely randomized, with treatments in factorial 2 (NAA concentrations; 0.05 and 0.5 ?M) x 2 (cytokines: BAP and KIN) x 2 (cytokine levels: 2.2 and 4.4 ?M) + 1 (control with basal MS, without growth regulators), with ten replications per treatment. We evaluated fungal and bacterial contamination, total and cumulative seed germination and number of shoots per treatment in each subculture. We observed only fungal contamination and only in A. blanchetiana (14.0%). Light favored in vitro seed germination in both species (99 and 62% respectively for A. blanchetiana and A. distichantha). MS medium + 0.5 ?M NAA + 2.2 ?M BAP resulted in the highest multiplication rate for both species, with significant contrasts between this treatment and the control in both species (105.62 more shoots in A. blanchetiana; 223.80 in A. distichantha). BAP promoted the formation of rootless shoots, while kinetin favored the formation of roots rather than shoots. A. blanchetiana and A. distichantha showed 90 and 97% of survival respectively in plantlet acclimatization.
650 $aTissue culture
650 $aAechmea fasciata
650 $aBromélia
650 $aBromeliaceae
650 $aCultura de tecido
650 $aRegulador de Crescimento
653 $aBromeliads
653 $aTaxa de multiplicação
700 1 $aSOUZA, F. V. D.
700 1 $aVIDAL, Á. M
700 1 $aLEDO, C. A. da S.
700 1 $aJOSÉ R. F. de SANTANA
773 $tHorticultura Brasileira$gv.31, n.1, Vitoria da Conquista Jan./Mar. 2013.
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