Data/hora: 06/06/2024 16:22:45

Provedor de dados: | 58
País: | Brazil
Título: | The osmoprotective effect of some organic solutes on Streptomyces sp. mado2 and nocardiopsis sp. mado3 growth
Autores: | Ameur,Hanane; Ghoul,Mostefa; Selvin,Joseph.
Data: | 2011-06-01
Ano: | 2011
Palavras-chave: | Streptomyces sp.; Nocardiopsis sp.; Osmoprotective effect; M63 medium; ISP5 medium.
Resumo: | The response of two marine actinomycetes such as Streptomyces sp. MADO2 and Nocardiopsis sp. MADO3 to osmotic stress in minimal medium M63 and in glycerol-asparagine medium (ISP5) was studied. The two strains were moderately halophilic and the behavior of the strain Streptomyces sp. MADO2 and Nocardiopsis sp. MADO3 towards the salt stress was varied depends on the media composition and the salinity concentration. The strain Streptomyces sp. was more sensitive to salt stress than Nocardiopsis sp. The growth of both Streptomyces sp. and Nocardiopsis sp. were inhibited at 1 M NaCl irrespective of the medium used. The Nocardiopsis sp. acquired osmoadaptation on ISP5 medium whereas the Streptomyces sp. showed poor growth on M63 medium. Glycine betaine (GB), proline and trehalose played a critical role in osmotic adaptation at high osmolarity whereas at low osmolarity they showed an inhibitory effect on the bacterial growth. The present findings confirmed that GB was the powerful osmoprotectant for Streptomyces sp. and Nocardiopsis sp. grown at 1 M NaCl both in M63 and ISP5 media.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000200019
Editor: | Sociedade Brasileira de Microbiologia
Relação: | 10.1590/S1517-83822011000200019
Formato: | text/html
Fonte: | Brazilian Journal of Microbiology  v.42 n.2 2011
Fonte: | info:eu-repo/semantics/openAccess