Fig. 3From: Differences in survival, virulence and biofilm formation between sialidase-deficient and W83 wild-type Porphyromonas gingivalis strains under stressful environmental conditionsComparison of virulence factors between the P. gingivalis W83 (■) and ΔPG0352 (□) strains cultured under varying conditions. †the difference in the P. gingivalis W83 strain is significant between normal and stressful conditions, P < 0.05; ‡ the difference in the ΔPG0352 mutant is significant between normal and stressful conditions, P < 0.05; # versus P. gingivalis W83 under the same culture conditions, P < 0.05Back to article page