Research Article

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

Figure 22

Cross-section of midgut epithelial cells at 96 hpi. Clear gaps (arrowheads) separate the basal ends of the epithelial cells from adjacent circular (CM) and longitudinal (LM) muscles. Virogenic stroma (VS) and occlusion bodies (OBs) occupy much of the enlarged nucleus on the left. Note that the level of NeabNPV development does not appear to be the same in the three visible nuclei. Large vacuoles (V) can be seen in the cytoplasm of two of the cells. Epoxy section, photomicrograph. Scale bar = 20 μm.
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