Observations on the Interaction of Baculoviruses with the Plasma Membrane

Two nuclear polyhedrosis baculoviruses were observed to acquire an envelope by budding through the plasma membrane. Budding (synhymenosis) occurred in a variety of tissues. The mechanism involved in the budding process appears similar to that described for other viruses and results in a characteristic surface structure similar to peplomers on one end of the virus.