Pathology of a Gammabaculovirus in Its Natural Balsam Fir Sawfly (Neodiprion abietis) Host

Figure 16

Midgut epithelial cell at 72 hpi. Present in the cytoplasm are vesicles containing an electron opaque material (arrows) and bacteria (B). Structures (arrowhead) appearing to consist of lengths of a thread-like material were first observed at 72 hpi. Electron micrograph. Scale bar = 1 μm.