Abstract
We propose a model for the self-propulsion of the marine bacterium Synechococcus utilizing a continuous looped helical track analogous to that found in Myxobacteria [1]. In our model cargo-carrying protein motors, driven by proton-motive force, move along a continuous looped helical track. The movement of the cargo creates surface distortions in the form of small amplitude traveling ridges along the S-layer above the helical track. The resulting fluid motion adjacent to the helical ribbon provides the propulsive thrust. A variation on the helical rotor model of [1] allows the motors to be anchored to the peptidoglycan layer, where they drive rotation of the track creating traveling helical waves along the S-layer. We derive expressions relating the swimming speed to the amplitude, wavelength, and velocity of the surface waves induced by the helical rotor, and show that they fall in reasonable ranges to explain the velocity and rotation rate of swimming Synechococcus.
References
Feb 1, 1974·Biological Reviews of the Cambridge Philosophical Society·J R Blake, M A Sleigh
Jul 1, 1974·Medical & Biological Engineering·H ReulS Effert
Oct 1, 1995·Journal of Bacteriology·T P Pitta, H C Berg
Oct 27, 1994·Nature·Y MagariyamaS Kudo
Jun 25, 1996·Proceedings of the National Academy of Sciences of the United States of America·B Brahamsha
Aug 6, 1996·Proceedings of the National Academy of Sciences of the United States of America·K M EhlersR Montgomery
Nov 4, 1996·Physical Review Letters·H A Stone, A D Samuel
Feb 2, 2000·Biophysical Journal·X Chen, H C Berg
May 1, 2001·BMC Microbiology·A D SamuelT S Reese
Sep 7, 2001·Annual Review of Microbiology·M J McBride
Dec 17, 2004·Journal of Bacteriology·J McCarrenB Brahamsha
Jun 22, 2005·Journal of Bacteriology·J McCarren, B Brahamsha
Dec 13, 2006·Journal of Bacteriology·J McCarren, B Brahamsha
Oct 4, 1985·Science·J B WaterburyS W Watson
May 8, 2008·Nature Reviews. Microbiology·Ken F Jarrell, Mark J McBride
Jan 21, 2011·Proceedings of the National Academy of Sciences of the United States of America·Beiyan NanDavid R Zusman
Apr 13, 2011·Proceedings of the National Academy of Sciences of the United States of America·Mingzhai SunTâm Mignot
Citations
Apr 3, 2016·Journal of Phycology·Michel LavoieMaurice Levasseur
Nov 12, 2014·Journal of Bacteriology·Kerry A Sokol, Neil E Olszewski
Feb 22, 2014·Current Biology : CB·Beiyan NanGeorge Oster
Apr 12, 2013·Proceedings of the National Academy of Sciences of the United States of America·Beiyan NanDavid R Zusman
Oct 28, 2017·FEMS Microbiology Reviews·Annegret Wilde, Conrad W Mullineaux
Jan 21, 2020·Genes to Cells : Devoted to Molecular & Cellular Mechanisms·Makoto MiyataKen-Ichi Wakabayashi
Feb 10, 2016·ELife·Nils SchuergersAnnegret Wilde
Jan 26, 2020·Scientific Reports·Kai Wirtz, S Lan Smith
Dec 23, 2020·Life·Benjamin L SpringsteinKarina Stucken
Jun 11, 2021·PloS One·Marcos F Velho RodriguesEric Lauga
Sep 23, 2021·Nature Reviews. Microbiology·Navish Wadhwa, Howard C Berg