title: Protuberances on the cell surface of E. coli after exposure to gramicidin S.
mesh_terms: D002473:Cell Wall / Q000187:drug effects*; D004926:Escherichia coli / Q000166:cytology* / Q000187:drug effects; D008854:Microscopy, Electron; D014449:Tyrothricin / Q000494:pharmacology*
chemical_list: D014449:Tyrothricin