Plant regeneration and histological study of the somatic embryogenesis of sugarcane (Saccharum spp.) cultivars RB855156 and RB72454 - doi: 10.4025/actasciagron.v36i1.16342

Autores

  • Giovana Bomfim de Alcantara Universidade Federal do Paraná Autor
  • Roberson Dibax Universidade Federal do Paraná Autor
  • João Carlos Bespalhok Filho Universidade Federal do Paraná Autor
  • Edelclaiton Daros Universidade Federal do Paraná Autor

DOI:

https://doi.org/10.4025/actasciagron.v36i1.16342

Palavras-chave:

tissue culture, somatic embryos, anatomy, 2, 4-D, Poaceae

Resumo

The development of an efficient regeneration system is crucial for the genetic transformation of sugarcane. The aims of this study were to regenerate plants from somatic embryos and analyze the origin and division pattern of cells during the different embryonic developmental stages of the sugarcane cultivars RB855156 and RB72454. For both cultivars, the best results for embryogenic callus induction were obtained with explant cultures on culture medium containing 13.5 µM 2,4-dichlorophenoxyacetic acid (2,4-D) followed by callus culture on solid medium with 4.5 µM 2,4-D. A higher rate of shoot induction was observed in RB855156 with the addition of 8.9 and 17.8 µM benzylaminopurine (BAP); this higher rate was also observed in RB72454 with the addition of 17.8 µM BAP. Murashige and Skoog (1962) (MS) medium containing 2.5 and 5.0 µM indolebutyric acid (IBA) for RB855156 and RB72454, respectively, was suitable for rooting. The plantlets were successfully acclimatized and the plant survival rate was 100% for both cultivars. Histological analysis revealed that the shoots in both cultivars originated from somatic embryogenesis

 

 

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Biografia do Autor

  • Giovana Bomfim de Alcantara, Universidade Federal do Paraná
    Departamento de Fitotecnia e Fitossanitarismo, Setor de Ciências Agrárias
  • Roberson Dibax, Universidade Federal do Paraná
    Departamento de Fitotecnia e Fitossanitarismo, Setor de Ciências Agrárias
  • João Carlos Bespalhok Filho, Universidade Federal do Paraná
    Departamento de Fitotecnia e Fitossanitarismo, Setor de Ciências Agrárias
  • Edelclaiton Daros, Universidade Federal do Paraná
    Departamento de Fitotecnia e Fitossanitarismo, Setor de Ciências Agrárias

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Publicado

2014-01-07

Edição

Seção

Produção Vegetal

Como Citar

Plant regeneration and histological study of the somatic embryogenesis of sugarcane (Saccharum spp.) cultivars RB855156 and RB72454 - doi: 10.4025/actasciagron.v36i1.16342. (2014). Acta Scientiarum. Agronomy, 36(1), 63-72. https://doi.org/10.4025/actasciagron.v36i1.16342

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