Figure 2

Electron microscopy of the hydrogenosomes of Psalteriomonas lanterna flagellates. A: Cell with two small stacks of hydrogenosomes. HC: hydrogenosomal complex. B: Group of dumb-bell-shaped hydrogenosomes in the periphery of the cell. The hydrogenosomes are surrounded by cisterns of rough endoplasmatic reticulum (rough ER). These organelles have been named "modified mitochondria" by Broers (1992) [25]. C: Large stack of hydrogenosomes (HC). D: Detail of the hydrogenosomal complex shown in C. E: "Single" hydrogenosome surrounded by rough ER. F: Dumb-bell-shaped hydrogenosome ("modified mitochondrion"). Bars A-D, F: 1 μm; E: 0,5 μm