title: The biological function and mutual dependence of bottom component and top component a of alfalfa mosaic virus.
mesh_terms: D005827:Genetics, Microbial; D005779:Immunodiffusion; D008967:Molecular Biology; D010942:Plant Viruses / Q000276:immunology; D012367:RNA, Viral; D014461:Ultracentrifugation
chemical_list: D012367:RNA, Viral