title: Polyamine content of several RNA plant viruses.
mesh_terms: D009029:Mosaic Viruses / Q000032:analysis; D010942:Plant Viruses / Q000032:analysis*; D011073:Polyamines / Q000032:analysis*; D013045:Species Specificity; D013095:Spermidine / Q000032:analysis*
chemical_list: D011073:Polyamines; D013095:Spermidine