Aphid transmissibility of some purified viruses and viral RNA's.
D006863:Hydrogen-Ion Concentration; D007303:Insect Vectors; D008567:Membranes, Artificial; D010942:Plant Viruses; D012367:RNA, Viral; D014027:Tobacco Mosaic Virus
D008567:Membranes, Artificial; D012367:RNA, Viral