ArticleBiophysical journal2014
Osmotic pressure in a bacterial swarm.
Article in Biophysical journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed, 45 citations in OpenAlex.
- Initiation of swarming inProceedings of the National Academy of Sciences of the United States of America · 2026Article
- Swashing: a propulsion-independent form of bacterial surface migration.Journal of bacteriology · 2025Article
- Study on the effect of tetrabutyryl vitamin C ester on the freshness preservation of pork stored at a low temperature.Food chemistry: X · 2025Article
- Capillary interactions drive the self-organization of bacterial colonies.Nature physics · 2025Article
- c-di-GMP is required for swarming inmBio · 2025Article
- Article
- Swashing motility: A novel propulsion-independent mechanism for surface migration inbioRxiv : the preprint server for biology · 2024Article
- United under stress: High-speed transport network emerging at bacterial living edge.Fundamental research · 2024Article
- Simultaneous spatiotemporal transcriptomics and microscopy of Bacillus subtilis swarm development reveal cooperation across generations.Nature microbiology · 2023Article
- Swarming ofBiophysics reviews · 2023Review
- Bacterial Swarm-Mediated Phage Transportation Disrupts a Biofilm Inherently Protected from Phage Penetration.Microbiology spectrum · 2023Article
- Understanding how bacterial collectives organize on surfaces by tracking surfactant flow.Current opinion in solid state & materials science · 2023Article
- Emerging roles of neutrophils in immune homeostasis.BMB reports · 2022Review
- Effect of Thrombin and Incubation Time on Porcine Whole Blood Clot Elasticity and Recombinant Tissue Plasminogen Activator Susceptibility.Ultrasound in medicine & biology · 2022Article
- Materials science and mechanosensitivity of living matter.Applied physics reviews · 2022Review
- Bacterial motility: machinery and mechanisms.Nature reviews. Microbiology · 2022Review
- Article
- First-time characterization of viable but non-culturable Proteus mirabilis: Induction and resuscitation.Journal of cellular and molecular medicine · 2020Article
- Involvement of Heme in Colony Spreading ofFrontiers in microbiology · 2020Article
- Cell Shape and Population Migration Are Distinct Steps ofJournal of bacteriology · 2019Article
Corrections and comments
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
Using Escherichia coli as a model organism, we studied how water is recruited by a bacterial swarm. A previous analysis of trajectories of small air bubbles revealed a stream of fluid flowing in a clockwise direction ahead of the swarm. A companion study suggested that water moves out of the agar into the swarm in a narrow region centered ∼ 30 μm from the leading edge of the swarm and then back into the agar (at a smaller rate) in a region centered ∼ 120 μm back from the leading edge. Presumably, these flows are driven by changes in osmolarity. Here, we utilized green/red fluorescent liposomes as reporters of osmolarity to verify this hypothesis. The stream of fluid that flows in front of the swarm contains osmolytes. Two distinct regions are observed inside the swarm near its leading edge: an outer high-osmolarity band (∼ 30 mOsm higher than the agar baseline) and an inner low-osmolarity band (isotonic or slightly hypotonic to the agar baseline). This profile supports the fluid-flow model derived from the drift of air bubbles and provides new (to our knowledge) insights into water maintenance in bacterial swarms. High osmotic pressure at the leading edge of the swarm extracts water from the underlying agar and promotes motility. The osmolyte is of high molecular weight and probably is lipopolysaccharide.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.