title: The determination of two morphologically distinct types of pilus by plasmids of incompatibility group I2.
mesh_terms: D004926:Escherichia coli / Q000648:ultrastructure; D010861:Fimbriae, Bacterial / Q000648:ultrastructure*; D008854:Microscopy, Electron; D010957:Plasmids; D012486:Salmonella typhimurium / Q000648:ultrastructure