the fusion of fpv-infected and 3h-uridine labeled ehrlich ascitic carcinoma cells with infected unlabeled chicken fibroblasts using inactivated sendai virus resulted in production of two types of labeled virus particles : with a buoyant density in cesium chloride gradient of 1.29 g/cm3 characteristic of particles produced by infected ehrlich cells and buoyant density 1.22 g/cm3 typical of standard influenza virus .
C0016030
fibroblasts
C0007634
cells