Buoyant densities of DNA from various strains of Streptococcus mutans

  • Dunny G
  • Hausner T
  • Clewell D
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The buoyant densities of eight strains of Streptococcus mutans were determined by analytical ultracentrifugation in caesium chloride. The results were as follows (in g/cm3): K-1-R(1.7044); SL-1(1.7040); E-49(1.7010); BHT(1.7009); FA-1(1.7000); Ingbritt(1.6967); NCTC-10449(1.6964); GS-5(1.6962). These data add to the mounting evidence for genetic heterogeneity in Strept. mutans. © 1972.

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  • G. M. Dunny

  • T. Hausner

  • D. B. Clewell

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