Figure 4. Panel I: Effect of the 48 (A) or 96 h (B) treatment with simazine (0.1 or 10 µM) on area covered by AOC in fibrin gel. Data represent the mean ± SEM of six replicates/treatment repeated in five different experiments. Different letters indicate a significant difference (P < 0.01) among treatments as calculated by ANOVA and Scheffè’ F test. Panel II: Phase contrast micrographs showing AOC growth in fibrin gel matrix after 48 or 96 h treatment with simazine (0.1 or 10 µM).