FIG. 9.

Immunogold labeling for tegument proteins of HSV-1-infected neurons treated with BFA. (A) BFA greatly inhibited the incorporation of US9 into enveloped (large arrows) and unenveloped viral particles (arrowheads) of US9, as shown by the weak or dense (small arrows) or no labeling of viral particles for US9 (large arrows). Bar, 200 nm. (B) VP13/14 incorporation was less markedly inhibited, since most enveloped virions (arrows) labeled densely with VP13/14. Bar, 200 nm.