ArticleProceedings of the National Academy of Sciences of the United States of America2003
Bacteria are not too small for spatial sensing of chemical gradients: an experimental evidence.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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Who cites it
30 citing papers in PubMed, 121 citations in OpenAlex.
- Article
- Individual bacterial cells can use spatial sensing of chemical gradients to direct chemotaxis on surfaces.Nature microbiology · 2024Article
- Electrochemical sensors for oral biofilm-biomaterials interface characterization: A review.Molecular oral microbiology · 2022Review
- Temporal fluctuations in chemotaxis gain implement a simulated-tempering strategy for efficient navigation in complex environments.iScience · 2021Article
- Origins of eukaryotic excitability.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021Review
- Learning action-oriented models through active inference.PLoS computational biology · 2020Article
- Structured silicon for revealing transient and integrated signal transductions in microbial systems.Science advances · 2020Article
- Collective gradient sensing in fish schools.Scientific reports · 2018Article
- A computational model for how cells choose temporal or spatial sensing during chemotaxis.PLoS computational biology · 2018Article
- Light-controlled motility in prokaryotes and the problem of directional light perception.FEMS microbiology reviews · 2017Review
- Review
- Biophysical basis for convergent evolution of two veil-forming microbes.Royal Society open science · 2015Article
- Sudden motility reversal indicates sensing of magnetic field gradients in Magnetospirillum magneticum AMB-1 strain.The ISME journal · 2015Article
- Short-range guiding can result in the formation of circular aggregates in myxobacteria populations.PLoS computational biology · 2015Article
- Diversity of magneto-aerotactic behaviors and oxygen sensing mechanisms in cultured magnetotactic bacteria.Biophysical journal · 2014Article
- Hydrodynamics and collective behavior of the tethered bacterium Thiovulum majus.Proceedings of the National Academy of Sciences of the United States of America · 2014Article
- Virio- and bacterioplankton microscale distributions at the sediment-water interface.PloS one · 2014Article
- Ecology and physics of bacterial chemotaxis in the ocean.Microbiology and molecular biology reviews : MMBR · 2012Review
- Intracellular chemical gradients: morphing principle in bacteria.BMC biophysics · 2012Article
- Lithotrophic iron-oxidizing bacteria produce organic stalks to control mineral growth: implications for biosignature formation.The ISME journal · 2011Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
By analyzing the chemotactic behavior of a recently described marine bacterial species, we provide experimental evidence that bacteria are not too small for sensing chemical gradients spatially. The bipolar flagellated vibrioid bacteria (typical size 2 x 6 microm) exhibit a unique motility pattern as they translate along as well as rotate around their short axis, i.e., the pathways of the cell poles describe a double helix. The natural habitat of the bacteria is characterized by steep oxygen gradients where they accumulate in a band at their preferred oxygen concentration of approximately 2 microM. Single cells leaving the band toward the oxic region typically return to the band within 16 s following a U-shaped track. A detailed analysis of the tracks reveals that the cells must be able to sense the oxygen gradient perpendicular to their swimming direction. Thus, they can detect oxygen gradients along a distance of approximately 5 microm corresponding to the extension of their long axis. The observed behavior can be explained by the presence of two independent sensor regions at either cell pole that modulate the rotation speed of the polar flagellar bundles, i.e., the flagellar bundle at the cell pole exposed to higher oxygen concentration is rotating faster than the other bundle. A mathematical model based on these assumptions reproduces the observed swimming behavior of the bacteria.
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