Figure 3

Growths of test strains. Prevotella intermedia strains 17 (black square) and OD1-16 (open circle) showed a slower growth rate, entering into an exponential phase at around 18 h and reaching the plateau in 32 h, than those of P. intermedia ATCC 25611 (open rhombus), Porphyromonas gingivalis ATCC 33277 (black star), 381 (open triangle) and W83 (black circle).