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Growth characteristics and dynamics of protein synthesis in callus cultures from Glycine wightii (Wight & Arn.) Verdc. Ciência e Agrotecnologia
Silva,André Luis Coelho da; Caruso,Cecília Sulzbacher; Moreira,Renato de Azevedo; Horta,Ana Cecília Góes.
Cotyledon explants were first cultured on MS medium supplemented with 4.52 M 2,4-D and 0.46 mM kinetin. The development of the calli was followed (0, 4, 8, 12, 16, 20, 24, 28 and 32 days after) and the growth curve was determined, based in fresh and dry weight. The growth curve presented sigmoidal form with four distinct phases. The highest growth percentage was observed at the exponential phase and the lowest at the stationary phase. These results indicated that cotyledon callus subculture should be performed 20 days after inoculation. The calli obtained after a period of 28 days were freeze dried, macerated and submitted to extraction with buffers of different pH values (2.6; 4.0; 6.0; 8.0 and 10.0) and the proteins in the extracts were determined by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine; Leguminosae; Callogenesis; SDS-PAGE.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542005000600009
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In vitro induction of callus from cotyledon and hypocotyl explants of Glycine wightii (Wight & Arn.) Verdc. Ciência e Agrotecnologia
Silva,André Luis Coelho da; Caruso,Cecília Sulzbacher; Moreira,Renato de Azevedo; Horta,Ana Cecília Góes.
With the objective to promote in vitro callus induction, cotyledon and hypocotyl segments of "perennial soybean" (Glycine wightii (Wight & Arn.) Verdc.) were inoculated in basal medium MS supplemented with sucrose (1.5 e 3%) and 0.8% agar and different concentrations of 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-furfurylaminopurine (kinetin). The explants were maintained in a dark growth room at 28ºC. The best callus induction was observed in explants (cotyledon and hypocotyl) maintained in medium containing the combination of 2,4-D (1 mg.L-1), kinetin (0.1 mg.L-1) and 3% sucrose. To promote callus subculture, the MS medium was supplemented with different combinations of 2,4-D (0.5 to 4.0 mg.L-1), with or without kinetin (0.1 mg.L-1) and sucrose...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Glycine wightii; Leguminosae; Callogenesis; Tissue culture.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542003000600011
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