title: Infectivity of a mixture of cowpea mosaic virus ribonucleoprotein components.
mesh_terms: D002499:Centrifugation, Density Gradient; D005779:Immunodiffusion; D009698:Nucleoproteins / Q000032:analysis; D010942:Plant Viruses / Q000032:analysis / Q000472:pathogenicity*; D012367:RNA, Viral / Q000032:analysis
chemical_list: D009698:Nucleoproteins; D012367:RNA, Viral