Fig 5. Cellular structure and organelle composition of Drosophila phalerata hemocytes visualized with transmission electron microscopy.

Ultrastructure and organelles of three hemocyte classes were captured; key features include nucleus (N), nuclear envelope (carrot), microtubules (T), and mitochondria (M). Based on morphology, imaged cells are classified as plasmatocytes (A [2 μm]) and corresponding magnification (B [500 nm]), a type-I nematocyte (C [5 μm]) and magnification (D [500 nm]). Finally, type-II nematocytes are shown, and clearly possess long microtubules and mitochondria (E [5 μm], G [5 μm], & I [5 μm]), respective magnifications are also shown (F [500 nm], H [500 nm], & J [500 nm]). Scale bar lengths are indicated within brackets.