Fig. 8.

TEM of Trichomonas vaginalis trophozoites treated by metronidazole (1 µg/ml) for 48 h showing cell swelling and altered distribution of vacuoles (a). At higher concentration (3 µg/ml) (b) the effects were more pronounced and large empty areas and damage to the plasma membrane was evident (arrows). Bar scale 1 µm (Cedillo-Rivera et al. 2002)