Heat-inducible mutants of corynebacteriophage.
AUTOR(ES)
Groman, N
RESUMO
Heat-inducible mutants of temperate cornebacteriophage beta and gamma, called temperature-sensitive repression (tsr) mutants, were isolated and characterized. Lysogens carrying these mutants were induced at 38 degrees C, produced a normal or slightly increased yield of phage, and underwent extensive lysis at this temperature. In some cases mutation to heat inducibility had altered the UV inducibility of the phage, the changes ranging from loss to enhancement of this trait. Complementation tests showed that all five beta-tsr strains had mutated in the same cistron and suggested that these mutations were in the gene responsible for repressor production.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=515869Documentos Relacionados
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