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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: J Periodontal Res. 2010 Nov 26;46(1):105–110. doi: 10.1111/j.1600-0765.2010.01319.x

Figure 1.

Figure 1

The supernatants from broth cultures of P. gingivalis 381 or T. denticola 35405 (with or without boiling) were incubated with exogenous S. mutans CSP for 2 h and added to the comC mutant cells of S. mutans BM71. The bacteriocin activity was assayed by inoculating the supernatants into pre-cut wells in THB plates. After absorption of the supernatants, the plates were overlaid with RP66 indicator cells and incubated at 37°C overnight. The presence of bacteriocin in the culture supernatants of the comC mutant would inhibit RP66 growth, which indicated the presence of functional exogenous CSP. The diameters of the inhibition zones surrounding the wells (mm) were shown in brackets.