flagellar motility
Research ArticleCellular Stoichiometry of Chemotaxis Proteins in Sinorhizobium melilotiThe symbiotic soil bacterium Sinorhizobium meliloti contributes greatly to host-plant growth by fixing atmospheric nitrogen. The provision of nitrogen as ammonium by S. meliloti leads to increased biomass production of its legume host alfalfa and diminishes the use of environmentally harmful...
MinireviewEvolution of the Stator Elements of Rotary Prokaryote MotorsThe bacterial flagellar motor is driven by an ion flux that is converted to torque by motor-attendant complexes known as stators. The dynamics of stator assembly around the motor in response to external stimuli have been the subject of much recent research, but less is known about the evolutionary origins of stator complexes and how they select for specific ions.
Meeting ReviewNew Twists and Turns in Bacterial Locomotion and Signal TransductionProkaryotic organisms occupy the most diverse set of environments and conditions on our planet. Their ability to sense and respond to a broad range of external cues remain key research areas in modern microbiology, central to behaviors that underlie beneficial and pathogenic interactions of bacteria with multicellular organisms and within complex ecosystems.
Research ArticleRapid Accumulation of Motility-Activating Mutations in Resting Liquid Culture of Escherichia coliThe ability to tune gene expression in times of need outside preordained regulatory networks is an essential evolutionary process that allows organisms to survive and compete. Here, we show that upon overnight incubation in liquid medium without shaking, populations of largely nonmotile Escherichia coli bacteria can rapidly accumulate mutants that have constitutive...
- Meeting PresentationA Critical Region in the FlaA Flagellin Facilitates Filament Formation of the Vibrio cholerae Flagellum
V. cholerae causes the severe diarrheal disease cholera. Its ability to swim is mediated by rotation of a polar flagellum, and this motility is integral to its ability to cause disease and persist in the environment. The current studies illuminate how one specific flagellin (FlaA) within a multiflagellin structure mediates formation of the flagellar filament, thus...
- Research Article | SpotlightImaging the Motility and Chemotaxis Machineries in Helicobacter pylori by Cryo-Electron Tomography