TABLE 1 

Natural transformation efficiency of pneumococcal strains during planktonic and biofilm growth

StrainSerotypeNatural transformation efficiency
PlanktonicBiofilm
D39204.4 × 10−4
SP6706B06.5 × 10−3
SP45623F09.1 × 10−4
Rx1Acapsular1.1 × 10−42.8 × 10−4