title: [Isolation of murine sarcoma virus not associated with XC plague forming leukemia virus].
abstract: The N-type MLg cells transformed by B-tropic MuSV (WN1802B) produced defective MuSV without detectable among of MuLV; the focus formation by the culture fluid required the co-infection of exogenous MuLV. After one passage of the virus in MLg cells, we obtained a virus preparation which was capable of inducing foci without the exogenous MuLV, but which remained negative in the XC test.
mesh_terms: D000818:Animals; D002460:Cell Line; D017988:Gammaretrovirus / Q000302:isolation & purification*; D051379:Mice; D008807:Mice, Inbred BALB C; D009053:Sarcoma Viruses, Murine / Q000302:isolation & purification*; D010948:Viral Plaque Assay
vernacular_title: Isolement d'un virus du sarcome murin non associé á un virus de la leucémie murine formateur de plages dans le test XC