Fig. 1From: Differences in survival, virulence and biofilm formation between sialidase-deficient and W83 wild-type Porphyromonas gingivalis strains under stressful environmental conditionsThe growth curves of the P. gingivalis W83 and ΔPG0352 strains grown under varying pH values (a), temperatures (b) and oxidative stress conditions (c-e). * P < 0.05;†P < 0.01Back to article page