title: Elongated virus particles in plasmodesmata.
mesh_terms: D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D007365:Intercellular Junctions / Q000382:microbiology* / Q000648:ultrastructure; D010942:Plant Viruses / Q000302:isolation & purification*; D010947:Plants, Toxic; D014026:Nicotiana / Q000382:microbiology / Q000648:ultrastructure*; D014027:Tobacco Mosaic Virus / Q000302:isolation & purification*