title: Function of top component a RNA in the initiation of infection by alfalfa mosaic virus.
mesh_terms: D000956:Antigens, Viral / Q000032:analysis; D002499:Centrifugation, Density Gradient; D004591:Electrophoresis, Polyacrylamide Gel; D000455:Medicago sativa; D009029:Mosaic Viruses / Q000032:analysis / Q000276:immunology; D009698:Nucleoproteins / Q000032:analysis / Q000302:isolation & purification; D010935:Plant Diseases; D010942:Plant Viruses; D010947:Plants, Toxic; D011233:Precipitin Tests; D014176:Protein Biosynthesis; D012328:RNA Viruses / Q000276:immunology; D012367:RNA, Viral / Q000032:analysis / Q000302:isolation & purification; D014026:Nicotiana; D014764:Viral Proteins / Q000032:analysis / Q000302:isolation & purification; D014779:Virus Replication
chemical_list: D000956:Antigens, Viral; D009698:Nucleoproteins; D012367:RNA, Viral; D014764:Viral Proteins