More than propellers: how flagella shape bacterial motility behaviors.
Marianne Grognot,Katja M. Taute +1 more
TLDR
This paper reviewed recent observations of how flagella shape motility behaviors and summarized the nascent structure-function map linking flagellation and behavior, concluding that the structure function map can be used to predict motility behavior.About:
This article is published in Current Opinion in Microbiology.The article was published on 2021-04-09 and is currently open access. It has received 23 citations till now.read more
Citations
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Multiple functions of flagellar motility and chemotaxis in bacterial physiology.
TL;DR: In this paper, the authors focus on less understood aspects of bacterial chemotaxis, namely its physiological relevance for individual bacterial cells and for bacterial populations, and show that motility plays multiple roles in collective behaviors of bacteria including swarming, biofilm formation and autoaggregation, as well as in their interactions with animal and plant hosts.
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Flagella at the Host-Microbe Interface: Key Functions Intersect With Redundant Responses
TL;DR: Even though many aspects of flagellar motility may seem innocuous, the host’s redundant efforts to stop bacteria in their tracks highlights the importance of this host-microbe interaction.
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Wrapped Up: The Motility of Polarly Flagellated Bacteria.
TL;DR: A significant amount-more likely the majority-of bacterial species exhibit a (bi)polar flagellar localization pattern instead of lateral flagella, which has evolved very different mechanisms for navigation and chemotaxis.
Journal ArticleDOI
Flagellin outer domain dimerization modulates motility in pathogenic and soil bacteria from viscous environments
Mark A. B. Kreutzberger,Richard C. Sobe,Amber Brooke Sauder,Sharanya Chatterjee,Alejandro Peña,Fengbin Wang,Jorge A. Girón,Volker Kiessling,Tiago Rd Costa,Vincent P. Conticello,Gad Frankel,Melissa M. Kendall,Birgit E. Scharf,Edward H. Egelman +13 more
TL;DR: In this article , the atomic cryo-electron microscopy structures for flagellar filaments from enterohemorrhagic Escherichia coli O157:H7, enteropathogenic E. coli O127:H6, Achromobacter, and Sinorhizobium meliloti, where the outer domains dimerize or tetramerize to form either a sheath or a screw-like surface.
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3D cryo-EM imaging of bacterial flagella: Novel structural and mechanistic insights into cell motility
TL;DR: In this article , the rotary motor of the Escherichia coli flagellum has been revealed with unprecedented detail, showing a two-cogwheel machine propelled by a Brownian ratchet device.
References
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Chemotaxis in Escherichia coli analysed by Three-dimensional Tracking
Howard C. Berg,Douglas A. Brown +1 more
TL;DR: Chemotaxis toward amino-acids results from the suppression of directional changes which occur spontaneously in isotropic solutions.
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Correction: Corrigendum: The mitochondrial uniporter controls fight or flight heart rate increases
Yuejin Wu,Tyler P. Rasmussen,Olha M. Koval,Mei-ling A. Joiner,Duane D. Hall,Biyi Chen,Elizabeth D. Luczak,Qiongling Wang,Adam G. Rokita,Xander H.T. Wehrens,Long-Sheng Song,Mark E. Anderson +11 more
TL;DR: In Fig. 4c of this Article, the y axis values were wrongly given as 0, 20, 40, 60 and 80 in the middle and the lower panels.
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Bacteria Swim by Rotating their Flagellar Filaments
TL;DR: It is shown here that existing evidence favours a model in which each filament rotates, which is commonly believed that each filament propagates a helical wave3.
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The Gradient-Sensing Mechanism in Bacterial Chemotaxis
TL;DR: It was found, however, that a sudden increase also elicits a response, namely supercoordinated swimming, which demonstrates that chemotaxis is achieved by modulation of the incidence of tumbling both above and below its steady-state value.
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Bacteria can exploit a flagellar buckling instability to change direction
TL;DR: High-speed video microscopy and mechanical stability theory now show that cells propelled with a single flagellum change direction with a flick-like motion that exploits a buckling instability.