title: Anaerobic electron transport in anaerobic flagellum formation in Escherichia coli.
abstract: Flagellum formation by ubiquinone- and menaquinone-deficient mutant strains of Escherichia coli K-12 was studied under both aerobic and anaerobic growth conditions. Ubiquinone was found to be obligatory for aerobic flagellum formation but could be replaced by menaquinone for anaerobic flagellum formation. A mutant devoid of both quinones was immotile aerobically as well as anaerobically. Hence, the respective electron transport system is obligatory for flagellum formation in Escherichia coli.
mesh_terms: D000332:Aerobiosis; D000693:Anaerobiosis; D004579:Electron Transport; D004926:Escherichia coli / Q000378:metabolism* / Q000648:ultrastructure; D005407:Flagella / Q000378:metabolism*; D009024:Morphogenesis; D011809:Quinones / Q000378:metabolism; D014451:Ubiquinone / Q000378:metabolism
chemical_list: D011809:Quinones; D014451:Ubiquinone