Transfection of Lysostaphin-treated Cells of Staphylococcus aureus

  • Riggs H
  • Rosenblum E
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Abstract

After treatment with 1 unit of lysostaphin per ml for 3 min, two strains of Staphylococcus aureus , 233 and PS 44A HJD, were transfected with phenol-extracted deoxyribonucleic acid (DNA) from the staphylococcal bacteriophages, 53 and 44A HJD, respectively. The number of transfected cells was low in both systems, approximately two in 10 7 enzyme-treated cells. There was a saturation effect at high concentrations of DNA; optimal results were obtained at concentrations between 10 to 25 μg/ml. Growth curves and fluctuation tests indicated that cells of strain 44A HJD infected with phage, then converted to protoplasts by a 10-min treatment with lysostaphin, produce only one phage particle and lose their ability to lyse spontaneously in hypertonic media.

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Riggs, H. G., & Rosenblum, E. D. (1969). Transfection of Lysostaphin-treated Cells of Staphylococcus aureus. Journal of Virology, 3(1), 33–37. https://doi.org/10.1128/jvi.3.1.33-37.1969

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