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Unique features of the motility and structures in the flagellate polar region of Campylobacter jejuni and other species: an electron microscopic study
Author(s) -
Yamamoto Tatsuo,
Takano Tomomi,
Higuchi Wataru,
Hung WeiChun,
Reva Ivan,
Yabe Shizuka,
Iwao Yasuhisa,
Khokhlova Olga
Publication year - 2013
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/1348-0421.12013
Subject(s) - flagellate , campylobacter jejuni , biology , flagellum , motility , campylobacter fetus , campylobacter , microbiology and biotechnology , campylobacter coli , vibrio cholerae , anatomy , bacteria , genetics , botany
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.