| Abstract: | Uninfected and Tyuleniy virus-infected chick fibroblast cells were examined. Intracytoplasmic type A particles and immature type C particles of oncornavirus were found in uninfected cells. At 48 and 72 hours after inoculation of the cells with Tyuleniy virus a large number of mature C particles and virions of Tyuleniy virus were found in the cell cytoplasm. Possible relationships between A and C particles are discussed and a stimulating effect of Tyuleniy virus on mass maturation of C particles and their release from the cell is suggested. |
