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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
07/07/2014 |
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Data da última atualização: |
16/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VIDAL, Á. M.; COSTA, M. A. P. de C.; SOUZA, A. da S.; ALMEIDA, W. A. B. de; SOUZA, F. V. D. |
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Afiliação: |
ÁDILA MELO VIDAL, UFRB; MARIA ANGÉLICA PEREIRA DE CARVALHO COSTA, UFRB; ANTONIO DA SILVA SOUZA, CNPMF; WELITON ANTONIO BASTOS DE ALMEIDA, FAMAM; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF. |
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Título: |
In vitro regeneration and morphogenesis of somatic embryos of cassava. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Revista Ciência Agronômica, v. 45, n. 3, p. 558-565, jul-set, 2014. |
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ISSN: |
1806-6690 |
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Idioma: |
Inglês |
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Conteúdo: |
In this study, the somatic embryogenesis and regeneration of Cigana Preta plants from shoot apices and immature leaves taken from plants cultivated in vitro were examined. To embryo induction the explants were cultivated in Murashige and Skoog (MS) medium supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D) or 4-amino-3,5,6-trichloropicolinic acid (Picloram) at concentrations of 8.0 and 12 mg L-1. To development of embryos two media cultures with different concentration of BAP (D1 or D2) were evaluated. Embryos in the cotyledonary stage were incubated in germination medium containing MS salts and vitamins, 2.0 ?M copper sulfate, 2.4 g L-1 of Phytagel® and 1.77 ?M BAP. The highest frequency of calluses and the greatest number of embryos per explant were obtained using the auxin picloram at a concentration of 8.0 mg L-1. The plants regenerated in the picloram treatment exhibited normal development and were transferred to a multiplication medium after a minimum of four weeks. The histological sections of the malformed embryos from foliar explants cultured in the presence of 2,4-D demonstrated that the origin of the cotyledonary structures was independent of the formation of the shoot apical meristem, which was not formed in the embryos, and the majority of the embryos were classified as cornet-shaped. This study demonstrates that in cassava, the use of different auxins provides different conditions for the formation of somatic embryos, and the low rate of conversion into plants results from abnormalities in the embryos. MenosIn this study, the somatic embryogenesis and regeneration of Cigana Preta plants from shoot apices and immature leaves taken from plants cultivated in vitro were examined. To embryo induction the explants were cultivated in Murashige and Skoog (MS) medium supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D) or 4-amino-3,5,6-trichloropicolinic acid (Picloram) at concentrations of 8.0 and 12 mg L-1. To development of embryos two media cultures with different concentration of BAP (D1 or D2) were evaluated. Embryos in the cotyledonary stage were incubated in germination medium containing MS salts and vitamins, 2.0 ?M copper sulfate, 2.4 g L-1 of Phytagel® and 1.77 ?M BAP. The highest frequency of calluses and the greatest number of embryos per explant were obtained using the auxin picloram at a concentration of 8.0 mg L-1. The plants regenerated in the picloram treatment exhibited normal development and were transferred to a multiplication medium after a minimum of four weeks. The histological sections of the malformed embryos from foliar explants cultured in the presence of 2,4-D demonstrated that the origin of the cotyledonary structures was independent of the formation of the shoot apical meristem, which was not formed in the embryos, and the majority of the embryos were classified as cornet-shaped. This study demonstrates that in cassava, the use of different auxins provides different conditions for the formation of somatic embryos, and the low rate of conversion into pl... Mostrar Tudo |
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Palavras-Chave: |
Cigana Preta. |
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Thesagro: |
Embriogênese; Mandioca. |
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Thesaurus Nal: |
Cassava; Plant growth substances; Somatic embryogenesis. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02261naa a2200253 a 4500
001 1989891
005 2015-01-16
008 2014 bl uuuu u00u1 u #d
022 $a1806-6690
100 1 $aVIDAL, Á. M.
245 $aIn vitro regeneration and morphogenesis of somatic embryos of cassava.
260 $c2014
520 $aIn this study, the somatic embryogenesis and regeneration of Cigana Preta plants from shoot apices and immature leaves taken from plants cultivated in vitro were examined. To embryo induction the explants were cultivated in Murashige and Skoog (MS) medium supplemented with 2,4-dichlorophenoxyacetic acid (2,4-D) or 4-amino-3,5,6-trichloropicolinic acid (Picloram) at concentrations of 8.0 and 12 mg L-1. To development of embryos two media cultures with different concentration of BAP (D1 or D2) were evaluated. Embryos in the cotyledonary stage were incubated in germination medium containing MS salts and vitamins, 2.0 ?M copper sulfate, 2.4 g L-1 of Phytagel® and 1.77 ?M BAP. The highest frequency of calluses and the greatest number of embryos per explant were obtained using the auxin picloram at a concentration of 8.0 mg L-1. The plants regenerated in the picloram treatment exhibited normal development and were transferred to a multiplication medium after a minimum of four weeks. The histological sections of the malformed embryos from foliar explants cultured in the presence of 2,4-D demonstrated that the origin of the cotyledonary structures was independent of the formation of the shoot apical meristem, which was not formed in the embryos, and the majority of the embryos were classified as cornet-shaped. This study demonstrates that in cassava, the use of different auxins provides different conditions for the formation of somatic embryos, and the low rate of conversion into plants results from abnormalities in the embryos.
650 $aCassava
650 $aPlant growth substances
650 $aSomatic embryogenesis
650 $aEmbriogênese
650 $aMandioca
653 $aCigana Preta
700 1 $aCOSTA, M. A. P. de C.
700 1 $aSOUZA, A. da S.
700 1 $aALMEIDA, W. A. B. de
700 1 $aSOUZA, F. V. D.
773 $tRevista Ciência Agronômica$gv. 45, n. 3, p. 558-565, jul-set, 2014.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 5 | |
| 1. |  | SOUZA, D. T.; NEVES, D. M.; COELHO FILHO, M. A.; COSTA, M. G. C.; SOARES FILHO, W. dos S.; GESTEIRA, A. da S. Avaliação da tolerância à seca em citros: análise de expressão gênica induzida por ácido abscísico. In: JORNADA CIENTÍFICA EMBRAPA MANDIOCA E FRUTICULTURA, 4., 2010, Cruz das Almas. [Anais...] Cruz das Almas: Embrapa Mandioca e Fruticultura, 2010. (Embrapa Mandioca e Fruticultura. Documentos, 190). 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 2. | | NEVES, D. M.; COELHO FILHO, M. A.; SOUZA, D. T.; SOARES FILHO, W. dos S.; COSTA, M. G. C.; GESTEIRA, A. da S. Análise da expressão gênica, sob condições de déficit hídrico, em limoeiro 'Cravo' (Citrus limonia OSBECK). In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS; WORKSHOP EM BIOPROSPECÇÃO E CONSERVAÇÃO DE PLANTAS NATIVAS DO SEMI-ÁRIDO, 3.; WORKSHOP INTERNACIONAL SOBRE BIOENERGIA E MEIO AMBIENTE, 2010, Salvador. Bancos de germoplasma: descobrir a riqueza, garantir o futuro: anais. Brasília, DF: Embrapa Recursos Genéticos e Biotecnologia, 2010. 1 CD-ROM (Embrapa Recursos Genéticos e Biotecnologia. Documentos, 304). PDF 104.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 3. | | NEVES, D. M.; COELHO FILHO, M. A.; SOUZA, D. T.; MENDES, A. F. S.; COSTA, M. G. C.; SOARES FILHO, W. dos S.; GESTEIRA, A. da S. Functional analysis of 9-cis-epoxycarotenoid dioxygenase (NCEDs) genes in response to water deficit in citrus. In: SIMPÓSIO BRASILEIRO DE GENÉTICA MOLECULAR DE PLANTAS, 3, 2011, Ilhéus. Resumos. [S. l.]: Sociedade Brasileira de Genética, 2011. 1 CD-ROM. pdf 34672| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 4. | | NEVES, D. M.; COELHO FILHO, M. A.; BELLETE, B. S.; SILVA, M. F. G. F.; SOUZA, D. T.; SOARES FILHO, W. dos S.; COSTA, M. G. C.; GESTEIRA, A. da S. The adaptation of Sunki Maravilha mandarin to drought depends on the ABA accumulation balance between roots and canopy. In: INTERNATIONAL CITRUS CONGRESS, 22., 2012.Valencia. Book of abstracts. Valencia: International Society of Citriculture; Instituto Valenciano de Investigaciones Agrarias; Fundación Agroalimed, 2012. Documento eletrônico.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 5. | | NEVES, D. M.; COELHO FILHO, M. A.; BELLETE, B. S.; SILVA, M. F. G. F.; SOUZA, D. T.; SOARES FILHO, W. dos S.; COSTA, M. G. C.; GESTEIRA, A. S. Comparative study of putative 9-cis-epoxycarotenoid dioxygenase and abscisic acid accumulation in the responses of Sunki mandarin and Rangpur lime to water deficit. Molecular Biology Reports, May, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 5 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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