title: Unique features of the motility and structures in the flagellate polar region of Campylobacter jejuni and other species: an electron microscopic study.
abstract: Similarly to Helicobacter pylori but unlike Vibrio cholerae O1/O139, Campylobacter jejuni is non-motile at 20°C but highly motile at ≥37°C. The bacterium C. jejuni has one of the highest swimming speeds reported (>100 μm/s), especially at 42°C. Straight and spiral bacterial shapes share the same motility. C. jejuni has a unique structure in the flagellate polar region, which is characterized by a cup-like structure (beneath the inner membrane), a funnel shape (opening onto the polar surface) and less dense space (cytoplasm). Other Campylobacter species (coli, fetus, and lari) have similar motility and flagellate polar structures, albeit with slight differences. This is especially true for Campylobacter fetus, which has a flagellum only at one pole and a cup-like structure composed of two membranes.
authors.affiliation: Division of Bacteriology, Department of Infectious Disease Control and International Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan. tatsuoy@med.niigata‐u.ac.jp
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Tomomi
authors.initials: T
authors.lastname: Takano
authors.forename: Wataru
authors.initials: W
authors.lastname: Higuchi
authors.forename: Wei-Chun
authors.initials: WC
authors.lastname: Hung
authors.forename: Ivan
authors.initials: I
authors.lastname: Reva
authors.forename: Shizuka
authors.initials: S
authors.lastname: Yabe
authors.forename: Yasuhisa
authors.initials: Y
authors.lastname: Iwao
authors.forename: Olga
authors.initials: O
authors.lastname: Khokhlova
mesh_terms: D002167:Campylobacter / Q000145:classification / Q000302:isolation & purification / Q000502:physiology* / Q000648:ultrastructure*; D002169:Campylobacter Infections / Q000382:microbiology; D005407:Flagella / Q000648:ultrastructure*; D006801:Humans; D008124:Locomotion; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission