Fig. 5.
Ultrastructural examination of CV1 cells infected with UL15 mutant and restored viruses. CV1 cells were infected with the indicated viruses, and 16 h later the cells were fixed, embedded in Epon-Araldite, sectioned, and examined by electron microscopy. Arrows in the upper left and lower left panels indicate enveloped B capsids in the cytoplasm. Arrowheads in these panels indicate B capsids in nuclei. Arrows in upper right and lower right panels indicate enveloped C capsids in the cytoplasm. Arrowheads in the upper and lower right panels indicate C capsids in the nuclei. Nuc, nucleus; Cyto, cytoplasm. As a size standard, capsid diameter is ∼125 nm.