Data/hora: 09/06/2024 04:49:21

Provedor de dados: | 64
País: | Brazil
Título: | Growth characteristics and dynamics of protein synthesis in callus cultures from Glycine wightii (Wight &amp;amp; Arn.) Verdc.
Autores: | Silva,André Luis Coelho da; Caruso,Cecília Sulzbacher; Moreira,Renato de Azevedo; Horta,Ana Cecília Góes.
Data: | 2005-12-01
Ano: | 2005
Palavras-chave: | Glycine; Leguminosae; Callogenesis; SDS-PAGE.
Resumo: | 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 Bradford method. The pH 8.0 buffer was the most efficient to extract the largest amount of protein. The amino acid analyses calli showed a high content of aspartic acid and low content of metionin. The dynamics of protein synthesis in calli was followed by SDS-PAGE electrophoresis.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542005000600009
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/S1413-70542005000600009
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.29 n.6 2005
Fonte: | info:eu-repo/semantics/openAccess