Ultrathin sections of Leishmania amazonensis axenic amastigotes without treatment that presented a normal ultrastructure (A) and treated with BZTS with concentrations that corresponded to the IC
(B-F) and IC
(G,I). White arrows indicate swollen mitochondria. Black arrows represent lipid-storage bodies. White arrowheads indicate the presence of vesicles inside the flagellar pocket. The star indicates the presence of concentric membranous structures in the mitochondria. The asterisk indicates autophagic vacuoles. n, nucleus; m, mitochondrion; k, kinetoplast; f, flagellum; fp, flagellar pocket. Scale bar = 1 μm.