Fig. 3From: PgFur participates differentially in expression of virulence factors in more virulent A7436 and less virulent ATCC 33277 Porphyromonas gingivalis strainsP. gingivalis growth in a liquid medium in the presence of H2O2. Bacterial cultures were started at OD600 ~ 0.2 and the growth in basal medium supplemented with 7.7 μM hemin and H2O2 was monitored by measuring optical density at 600 nm at the indicated time pointsBack to article page