Evidence map›Paper›PMID 21918111›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Directional persistence of chemotactic bacteria in a traveling concentration wave.

J Saragosti, V Calvez, N Bournaveas, B Perthame, A Buguin, P Silberzan

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
8.4field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

65 citing papers in PubMed, 215 citations in OpenAlex.

  1. Article
  2. Article
  3. Spatial self-organization of confined bacterial suspensions.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Review
  5. Article
  6. Article
  7. Trajectory analysis ofBiomicrofluidics · 2024
    Article
  8. Article
  9. Direct measurement of dynamic attractant gradients reveals breakdown of the Patlak-Keller-Segel chemotaxis model.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Coordination of gene expression with cell size enablesProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. The ecological roles of bacterial chemotaxis.Nature reviews. Microbiology · 2022
    Review
  18. Collective behavior and nongenetic inheritance allow bacterial populations to adapt to changing environments.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  19. Article
  20. Article

5 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

J SaragostiLaboratoire Physico-chimie Curie-Unité Mixte de Recherche 168, Institut Curie, Centre de Recherche, Centre National de la Recherche Scientifique, Université Pierre et Marie Curie, F-75248 Paris, France.
V Calvez
N Bournaveas
B Perthame
A Buguin
P Silberzan
Centre National de la Recherche Scientifique · FRÉcole Normale Supérieure de Lyon · FRUniversity of Edinburgh · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chemotactic bacteria are known to collectively migrate towards sources of attractants. In confined convectionless geometries, concentration "waves" of swimming Escherichia coli can form and propagate through a self-organized process involving hundreds of thousands of these microorganisms. These waves are observed in particular in microcapillaries or microchannels; they result from the interaction between individual chemotactic bacteria and the macroscopic chemical gradients dynamically generated by the migrating population. By studying individual trajectories within the propagating wave, we show that, not only the mean run length is longer in the direction of propagation, but also that the directional persistence is larger compared to the opposite direction. This modulation of the reorientations significantly improves the efficiency of the collective migration. Moreover, these two quantities are spatially modulated along the concentration profile. We recover quantitatively these microscopic and macroscopic observations with a dedicated kinetic model.

Indexed as

ChemotaxisDimethylpolysiloxanesEscherichia colibaysilonDimethylpolysiloxanes

Identifiers

PMID21918111
PMCPMC3182703
OpenAlexW2015717020

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.