title: Spermidine and spermine--polyamine components of turnip yellow mosaic virus.
mesh_terms: D000588:Amines / Q000032:analysis*; D002498:Centrifugation; D011232:Chemical Precipitation; D002849:Chromatography, Gas; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D004586:Electrophoresis; D010851:Picrates; D010942:Plant Viruses / Q000032:analysis* / Q000302:isolation & purification; D010945:Plants, Edible; D011865:Radioisotope Dilution Technique; D013096:Spermine / Q000032:analysis*
chemical_list: D000588:Amines; D010851:Picrates; D013096:Spermine