title: Comparative studies of two viroids: analysis of potato spindle tuber and citrus exocortis viroids by RNA fingerprinting and polyacrylamide-gel electrophoresis.
mesh_terms: D001483:Base Sequence; D002957:Citrus; D004591:Electrophoresis, Polyacrylamide Gel; D007457:Iodine Radioisotopes; D009841:Oligonucleotides / Q000032:analysis; D010942:Plant Viruses / Q000032:analysis*; D012367:RNA, Viral / Q000032:analysis*; D012260:Ribonucleases / Q000378:metabolism; D014675:Vegetables; D014764:Viral Proteins / Q000032:analysis*
chemical_list: D007457:Iodine Radioisotopes; D009841:Oligonucleotides; D012367:RNA, Viral; D014764:Viral Proteins; D012260:Ribonucleases