title: Origin of rigid bacterial "giant flagella" ("giant whips", riesenzöpfe).
mesh_terms: D001407:Bacillus / Q000166:cytology; D002465:Cell Movement; D003470:Culture Media; D004926:Escherichia coli / Q000166:cytology; D005407:Flagella / Q000502:physiology; D008857:Microscopy, Interference; D008858:Microscopy, Phase-Contrast; D011511:Proteus / Q000166:cytology*
chemical_list: D003470:Culture Media