Effect of Streptomycin Deprivation on Enzyme Synthesis in Streptomycin-Dependent Escherichia coli
AUTOR(ES)
Goodman, R. E.
RESUMO
During growth of streptomycin-dependent strains of Escherichia coli in the absence of streptomycin (deprived growth), both constitutive and inducible synthesis of β-galactosidase were preferentially inhibited. A similar preferential inhibition of constitutive and derepressed synthesis of alkaline phosphatase was observed. Catabolite repression accounted for part, but not all, of the inhibition of the inducible β-galactosidase synthesis. Serological experiments indicated that that part of the inhibition specificially associated with streptomycin deprivation was not a result of the production of altered β-galactosidase. It is suggested that during deprived growth the ribosomes of streptomycin-dependent bacteria become impaired in their ability to translate certain messages.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=276788Documentos Relacionados
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