Publicação

Callogenesis in stem explants of Eucalyptus grandis (Hill ex Maiden) showing resilience in oxide calluses

Ver documento

Detalhes bibliográficos
Resumo:Callogenesis was achieved using growth regulators at different concentrations to obtain the best characteristics regarding the calluses texture aspect with the main objective to produce friable calluses from stem explants of Eucalyptus grandis. Stem segments of approximately 1 cm were excised from 30-day seedlings. The treatments were prepared based on the MS medium added with TDZ alone or combined with AIA; 2,4-D; ANA. Each treatment consisted of five repetitions with five explants per plate. After 210 days of in vitro culture, the calluses were evaluated visually and by manipulation for texture. The explants that did not produce calluses were those exposed to treatments with 2,4-D 50.0 µM; TDZ 3.0 µM and in absence of a growth regulator (control).The best protocols for maintenance of friable calluses of stem explants of Eucalyptus grandis under the conditions performed in this work were those using only TDZ.
Autores principais:Pereira,Regina Paula Willemen
Outros Autores:Monteiro,Maria Beatriz de Oliveira; Abreu,Heber dos Santos
Assunto:stem explants protocols friable calluses
Ano:2013
País:Brasil
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:IBICT
Idioma:inglês
Origem:Oasisbr
Descrição
Resumo:Callogenesis was achieved using growth regulators at different concentrations to obtain the best characteristics regarding the calluses texture aspect with the main objective to produce friable calluses from stem explants of Eucalyptus grandis. Stem segments of approximately 1 cm were excised from 30-day seedlings. The treatments were prepared based on the MS medium added with TDZ alone or combined with AIA; 2,4-D; ANA. Each treatment consisted of five repetitions with five explants per plate. After 210 days of in vitro culture, the calluses were evaluated visually and by manipulation for texture. The explants that did not produce calluses were those exposed to treatments with 2,4-D 50.0 µM; TDZ 3.0 µM and in absence of a growth regulator (control).The best protocols for maintenance of friable calluses of stem explants of Eucalyptus grandis under the conditions performed in this work were those using only TDZ.

Atividades financiadas

Não foram encontrados projetos financiados.