title: Determination of very thin pili by the bacterial drug resistance plasmid R485.
mesh_terms: D003227:Conjugation, Genetic; D004926:Escherichia coli / Q000235:genetics* / Q000648:ultrastructure; D005796:Genes; D008854:Microscopy, Electron; D010641:Phenotype; D011815:R Factors; D012486:Salmonella typhimurium; D012764:Shigella sonnei; D013449:Sulfonamides / Q000494:pharmacology*
chemical_list: D013449:Sulfonamides