Ultrastructural effect of BenzCo on promastigote forms of <i>Leishmania amazonensis</i> after treatment with 3.8 and 7.8 µM of BenzCo for 72 h at 25°C, observed by transmission electron microscopy.

<p>(A) Control. (B–E) Parasites treated with 3.8 µM. (E–H) Parasites treated with 7.8 µM. Arrows indicate swollen mitochondria, and the asterisk indicates autophagic vacuoles. f, flagellum; fp, flagellar pocket; k, kinetoplast; m, mitochondrion; n, nucleus. Bars = 1 µm.