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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

Table 3.

Competent S. mutans LT11 and mixtures with P. gingivalis 381 or T. denticola 35405 were transformed with pTet, which transforms only S. mutans. P. gingivalis and T. denticola cells were boiled for 10 minutes before mixed culturing in the experimental groups 3 and 5. The transformation frequencies are indicated as numbers of tetracycline resistant colonies/100 μL. Assessments were performed in triplicate in two independent experiments. Data presented are the means ± standard deviation (n=6).

Species Transformation Efficiency (colonies/100 μL)
S.m. LT11 691.8 ± 67.0
S.m. LT11 + P.g. 381 0.5 ± 0.8
S.m. LT11 + Boiled P.g. 381 682.0 ± 90.9
S.m. LT11 + T.d. 35405 13.5 ± 3.5
S.m. LT11 + Boiled T.d. 35405 703.8 ± 62.9