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Filamentous structures in the cell envelope are associated with bacteroidetes gliding machinery

Authors :
Shibata, Satoshi
Tahara, Yuhei O.
Katayama, Eisaku
Kawamoto, Akihiro
Kato, Takayuki
Zhu, Yongtao
Nakane, Daisuke
Namba, Keiichi
Miyata, Makoto
McBride, Mark J.
Nakayama, Koji
Shibata, Satoshi
Tahara, Yuhei O.
Katayama, Eisaku
Kawamoto, Akihiro
Kato, Takayuki
Zhu, Yongtao
Nakane, Daisuke
Namba, Keiichi
Miyata, Makoto
McBride, Mark J.
Nakayama, Koji
Publication Year :
2023

Abstract

Many bacteria belonging to the phylum Bacteroidetes move on solid surfaces, called gliding motility. In our previous study with the Bacteroidetes gliding bacterium Flavobacterium johnsoniae, we proposed a helical loop track model, where adhesive SprB filaments are propelled along a helical loop on the cell surface. In this study, we observed the gliding cell rotating counterclockwise about its axis when viewed from the rear to the advancing direction of the cell and revealed that one labeled SprB focus sometimes overtook and passed another SprB focus that was moving in the same direction. Several electron microscopic analyses revealed the presence of a possible multi-rail structure underneath the outer membrane, which was associated with SprB filaments and contained GldJ protein. These results provide insights into the mechanism of Bacteroidetes gliding motility, in which the SprB filaments are propelled along tracks that may form a multi-rail system underneath the outer membrane. The insights may give clues as to how the SprB filaments get their driving force.<br />Communications Biology, 6(1), art. no. 94; 2023

Details

Database :
OAIster
Notes :
application/pdf, English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1375177053
Document Type :
Electronic Resource