FIG. 6.

Virions in growth cones of PrV-infected in vitro-cultivated rat neurons. Neurons were explanted, infected with PrV-Ka, and analyzed 18 h after infection. The black triangles in panel A indicate enveloped virions, the white triangle denotes a naked nucleocapsid, and the white lozenges show neurovesicles. The star denotes a partially enveloped particle. In panel B, three virions which apparently are released via exocytosis are marked by white circles. Enveloped virions within vesicles are abundant. Bars: 500 nm.