Viral infection across species barriers: reversible alteration of murine sarcoma virus for growth in cat cells.
Infection of cat embryo cells by a centrifugally induced aggregate of murine sarcoma virus and feline leukemia virus gave rise to a defective, focus-forming virus which propagated in cat cells, but not in mouse cells. This virus, apparently enveloped with a feline leukemia virus coat, was later subjected to aggregation with murine leukemia virus, whereupon it regained the capacity for growth in mouse cells.
D000818:Animals; D002415:Cats; D046508:Culture Techniques; D005347:Fibroblasts; D051379:Mice; D008979:Moloney murine leukemia virus; D012190:Retroviridae; D013045:Species Specificity; D014776:Virus Cultivation