Summary
Salmonella typhimurium LT2 and its mutants carry a large plasmid of molecular weight 60×106. Strains lacking autonomous plasmid DNA have been isolated. No plasmiddetermined functions have been identified, other than replication and a possible involvement in gene duplication. The plasmid neither co-transfers non-transmissible plasmids nor is itself co-transferred by F with which it does not exhibit superinfection immunity. Its replication, like that of F, is dependent on some host functions and on continuing protein synthesis.
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Communicated by G. Bertani
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Spratt, B.G., Rowbury, R.J. & Meynell, G.G. The plasmid of Salmonella typhimurium LT2. Molec. Gen. Genet. 121, 347–353 (1973). https://doi.org/10.1007/BF00433233
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DOI: https://doi.org/10.1007/BF00433233