Electron microscopy on the behavior of two strains of alfalfa mosaic virus in mixed infections.
D003593:Cytoplasm / Q000382:microbiology; D000455:Medicago sativa; D008854:Microscopy, Electron; D010942:Plant Viruses / Q000254:growth & development* / Q000472:pathogenicity; D010947:Plants, Toxic; D013045:Species Specificity; D014026:Nicotiana / Q000166:cytology