FIG. 5.

H₂O₂ production by bipyridyl herbicides in primary midbrain cultures. Cultures were exposed to PQ, DQ, or BV for 8 h at 300μM. Data expressed as mean + SEM, n = 3. Bars with different letters indicate statistical significance from one another (p < 0.05, one-way ANOVA with Tukey's posttest).