title: Endoplasmic reticulum and its relation to microtubules in sieve elements of sugarbeet and spinach.
mesh_terms: D002462:Cell Membrane / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure*; D008854:Microscopy, Electron; D008870:Microtubules / Q000648:ultrastructure*; D010935:Plant Diseases; D010942:Plant Viruses; D010944:Plants / Q000648:ultrastructure*