FIG. 2.
Growth-phase-dependent cytotoxicity of CHA on J774 macrophages. Bacterial culture was started at 0.1 OD600 unit (●). The percent cytotoxicity was calculated from the release of LDH activity after 1 h (○) and 2 h (◊) of infection. The experiment was repeated twice, and a representative experiment is shown. DO 600nm, optical density at 600 nm.