ArticleScientific reports2020
Distinct chemotactic behavior in the original Escherichia coli K-12 depending on forward-and-backward swimming, not on run-tumble movements.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 17 citations in OpenAlex.
- Article
- To Move or Not to Move: When and How Bacteria Suppress Flagellar Motility.Molecular microbiology · 2026Review
- Rescue of bacterial motility using two- and three-species FliC chimeras.Journal of bacteriology · 2025Article
- Regulatory Plasticity and Metabolic Trade-offs Drive Adaptive Evolution of Alternative Flagellar Configurations inbioRxiv : the preprint server for biology · 2025Article
- Hybrid Exb/Mot stators require substitutions distant from the chimeric pore to power flagellar rotation.Journal of bacteriology · 2024Article
- Overexpression of the flagellar motor protein MotB sensitizes Bacillus subtilis to aminoglycosides in a motility-independent manner.PloS one · 2024Article
- Flagellar polymorphism-dependent bacterial swimming motility in a structured environment.Biophysics and physicobiology · 2023Article
- Direct Observation of Archaellar Motor Rotation by Single-Molecular Imaging Techniques.Methods in molecular biology (Clifton, N.J.) · 2023Article
- The rapid evolution of flagellar ion selectivity in experimental populations ofScience advances · 2022Article
- Biocatalytic conversion of sunlight and carbon dioxide to solar fuels and chemicals.RSC advances · 2022Review
- Translational GTPase BipA Is Involved in the Maturation of a Large Subunit of Bacterial Ribosome at Suboptimal Temperature.Frontiers in microbiology · 2021Article
- Distinct chemotactic behavior in the original Escherichia coli K-12 depending on forward-and-backward swimming, not on run-tumble movements.Scientific reports · 2020Article
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Authors and funding
9 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Most motile bacteria are propelled by rigid, helical, flagellar filaments and display distinct swimming patterns to explore their favorable environments. Escherichia coli cells have a reversible rotary motor at the base of each filament. They exhibit a run-tumble swimming pattern, driven by switching of the rotational direction, which causes polymorphic flagellar transformation. Here we report a novel swimming mode in E. coli ATCC10798, which is one of the original K-12 clones. High-speed tracking of single ATCC10798 cells showed forward and backward swimming with an average turning angle of 150°. The flagellar helicity remained right-handed with a 1.3 μm pitch and 0.14 μm helix radius, which is consistent with the feature of a curly type, regardless of motor switching; the flagella of ATCC10798 did not show polymorphic transformation. The torque and rotational switching of the motor was almost identical to the E. coli W3110 strain, which is a derivative of K-12 and a wild-type for chemotaxis. The single point mutation of N87K in FliC, one of the filament subunits, is critical to the change in flagellar morphology and swimming pattern, and lack of flagellar polymorphism. E. coli cells expressing FliC(N87K) sensed ascending a chemotactic gradient in liquid but did not spread on a semi-solid surface. Based on these results, we concluded that a flagellar polymorphism is essential for spreading in structured environments.
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