PubMed · 13075145
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M WELSCH, G CAVALLO, P CANTELMO. 1953. [Lysogenic induction in Micrococcus pyogenes aureus].. https://pubmed.ncbi.nlm.nih.gov/13075145/
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A total of 61 bacteriophages were isolated from 100 strains of Salmonella senftenberg. Six bacteriophages were selected for typing purposes which were specific for S. senftenberg. Five phages, SasL1 to SasL5 were morphologically similar; phage SasL6 was morphologically different from the others. These phages fall into two morphological groups none of which correspond to the known tailed enterobacterial phage species. Hence, two new phage species represented by SasL1 and SasL6 are proposed.
The substantial influence of presence of the double converting prophages of the serological group F on the decrease of intensity of human leukocytes stimulation with lysogenic cells of S. aureus was determined. The end values of chemiluminescence in the six experimental systems containing lysogenic bacteria were only from 15.4 to 37.2% of the value in the control sample. The end values of the intercellular killing of the two lysogenic variants were twofold lower than in controls. Third of the investigated variants was completely resistant to intracellular killing in the applied system, and revealed 27% of growth stimulation.
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