Figure 3.

Inhibition of T. gondii growth by herbicides. (A) Inhibition of T. gondii growth measured by [³H]uracil incorporation after 2 days of culture in the presence of herbicide. (B) Effect of herbicides on growth of human foreskin fibroblasts measured by [³H]thymidine incorporation after 2 days of culture in the presence of inhibitor. Incorporation in the presence of 1% DMSO, 100%. Mean values with standard deviations are from measurements in at least three independent experiments, each with duplicate or triplicate determinations. Med, medium without inhibitor or DMSO. P/S, pyrimethamine (100 ng/ml) plus sulfadiazine (25 ng/ml).