Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 5
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Behavior of lateral buds of Hancornia speciosa after cryopreservation by encapsulation-vitrification Biological Sciences
Prudente, Débora de Oliveira; Paiva, Renato; Nery, Fernanda Carlota; Máximo, Wesley Pires Flausino; Silva, Luciano Coutinho.
 Hancornia speciosa is a fruitful species from Cerrado biome with high economic potential. However, the intense and disordered extractivism have caused a reduction of its population in its endemic area. In addition, seed recalcitrance negatively affects the conventional conservation of the species. Aiming to find alternatives that enable the long-term conservation of this species, the study’s objective was to assess the behavior of lateral bud’s regrowth after cryopreservation procedures by encapsulation-vitrification technique. Sodium alginate capsules containing lateral buds were pre-cultured in liquid WPM supplemented with 1.0 M glycerol, and subsequently exposed to different concentrations of sucrose (0.3; 0.75 and 1.0 M) for 24 or 48 hours. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Botânica criopreservação de recursos genéticos vegetais Mangabeira; Recalcitrant species; Long-term conservation; Dehydration. Botânica.
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31620
Imagem não selecionada

Imprime registro no formato completo
Cryopreservation of the mangaba tree (Hancornia speciosa Gomes): a protocol for long-term storage Agronomy
Santos, Paulo Augusto Almeida; Paiva, Renato; Silva, Luciano Coutinho; Souza, Ana Cristina de; Santana, Marlucia Cruz de; Silva, Diogo Pedrosa Corrêa da.
The aim of this study was to evaluate the efficiency of vitrification and droplet vitrification for the cryopreservation of Hancornia speciosa shoot tips. The shoot tips were subjected to four different periods of exposure (15, 30, 45 and 60 min.) to plant vitrification solution 2 (PVS2) before plunging into liquid nitrogen. We evaluated the regrowth of H. speciosa shoot tips that were cryopreserved by the classical vitrification technique and by the droplet vitrification technique. Shoot tips were submitted to different periods of pre-culture (absence, 24 or 48h) in a medium containing 0.3 M sucrose prior to cryopreservation. With a PVS2 exposure period of 60 min., significant differences were observed between the two techniques used in this study with...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.00.00.00-4 - ciências agrárias; 2.03.03.00-9 - fisiologia vegetal; Native species; In vitro conservation; Recalcitrant seeds; Plant genetic diversity conservation; Vitrification; Droplet vitrification Conservação in vitro; Criopreservação vegetal.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19573
Imagem não selecionada

Imprime registro no formato completo
Growth and photosynthetic responses during ex vitro acclimatization of Etlingera elatior (Jack) rm smith (torch ginger) Agronomy
Rodrigues, Marcelo; Paiva, Patrícia Duarte de Oliveira; Freitas, Rodrigo Therezan de; Mansur, Thaís de Oliveira Fontes; Paiva, Renato; Barbosa, João Paulo Rodrigues Alves Delfino.
Torch ginger (Etlingera elatior (Jack) RM Smith) can be propagated in vitro, but there is currently little information about the stages of acclimatization and adaptation for torch ginger in a greenhouse. The objective was to study the growth responses, survival and photosynthetic response during the acclimatization of plants maintained on three different substrates (Plantmax forestry®, sand and 1:1 Plantmax forestry® and sand) under three shading conditions (50% red and blue shading nets and control without shading nets). The highest leaf and shoot numbers per plant and survival rate were observed in treatments with the Plantmax forestry® type substrate in the absence of shading. In vitro culture plants behaved similarly or better than rhizome propagated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.00.00.00-4 torch ginger; Growth curve; Gas exchange; Photoautotrophy. 5.01.03.06-7.
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19707
Imagem não selecionada

Imprime registro no formato completo
In vitro germination and seed cryopreservation of paineira-rosa Sci. Agrar.Paran. / SAP
Prudente, Débora de Oliveira; Nery, Fernanda Carlota; Silva, Laís Silveira da; Paiva, Renato; Reis, Michele Valquíria dos; Nery, Marcela Carlota.
The paineira-rosa (Chorisia speciosa St. Hil) is an arboreal species of great importance in restoring degraded ecosystems and riparian forests, however, the availability of seeds of this species is low. The objective was to establish in vitro germination protocols and cryopreservation of paineira-rosa seeds. For the in vitro germination, MS culture medium and WPM was tested three concentrations of sucrose (0, 15, 30 g L-1) and three pH levels (4.8, 5.8 and 6.8). For cryopreservation, the seeds were dried on silica gel or laminar flow for different times (0, 1, 2, 3 and 4 h) and then were stored in liquid nitrogen (-196 °C) for 24 h, defrosted in a water bath (38 °C) for four minutes and they were inserted into test tubes containing WPM medium cultivation....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Armazenamento em longo prazo; Chorisia speciosa; Dessecação; Espécie florestal..
Ano: 2016 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/11775
Imagem não selecionada

Imprime registro no formato completo
Micropropagation of candeia, native species from brazilian cerrado Sci. Agrar.Paran. / SAP
Prudente, Débora de Oliveira; Nery, Fernanda Carlota; Paiva, Renato; Goulart, Vívian Loryane Ávila; Anselmo, Aline Cristini do Nascimento.
Candeia (Eremanthus elytropappus) is a native species from Brazilian Cerrado and presenting economic potential for the timber and pharmaceutical industry. However, the ex vitro germination rate of the seeds is considered low. In this context, the objective was to establish a protocol for in vitro germination and multiplication, aiming at the rapid multiplication of the species. For the in vitro germination medium were tested WPM; ½ WPM; ¼ WPM; MS; MS ½ and ¼ MS. In addition, Were Also tested GA3 (0.0; 0.2; 0.4; 0.6; 0.8 mg L-1) and pH levels (4.8, 5.8 and 6.8) in ¼ WPM culture medium. For in vitro multiplication, stem segments were inoculated in ¼ WPM supplemented with BAP (0.0, 1.0, 2.0, 3.0, 4.0 and 5.0 mg L-1). Shoots obtained in vitro were individually...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; Cultura de tecidos; Eremanthus erythropappus (DC.) MacLeish; Espécie florestal..
Ano: 2016 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/12893
Registros recuperados: 5
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional