title: Purification of potato virus X and preparation of infectious ribonucleic acid by degradation with lithium chloride.
mesh_terms: D002499:Centrifugation, Density Gradient; D002712:Chlorides; D005615:Freezing; D005779:Immunodiffusion; D008094:Lithium; D008722:Methods; D008854:Microscopy, Electron; D010942:Plant Viruses / Q000302:isolation & purification*; D012367:RNA, Viral / Q000302:isolation & purification*; D013057:Spectrum Analysis; D014461:Ultracentrifugation
chemical_list: D002712:Chlorides; D012367:RNA, Viral; D008094:Lithium