title: RNA contents of abnormally long particles of certain strains of alfalfa mosaic virus.
mesh_terms: D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D000455:Medicago sativa; D008854:Microscopy, Electron; D009029:Mosaic Viruses / Q000032:analysis; D009698:Nucleoproteins / Q000032:analysis / Q000302:isolation & purification; D010942:Plant Viruses / Q000032:analysis*; D012328:RNA Viruses / Q000032:analysis; D012367:RNA, Viral / Q000032:analysis*; D013056:Spectrophotometry, Ultraviolet; D014764:Viral Proteins / Q000032:analysis / Q000302:isolation & purification
chemical_list: D009698:Nucleoproteins; D012367:RNA, Viral; D014764:Viral Proteins