Evidence map›Paper›PMID 25808339›Full record

ArticleJournal of the Royal Society, Interface2015

Periodic traction in migrating large amoeba of Physarum polycephalum.

Jean-Paul Rieu, Hélène Delanoë-Ayari, Seiji Takagi, Yoshimi Tanaka, Toshiyuki Nakagaki

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the Royal Society, Interface, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

17 citing papers in PubMed, 37 citations in OpenAlex.

  1. Review
  2. Coexistence of trapped and flow-transported nuclei enables fast pigeon post communication across multinucleated cell.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  3. Article
  4. Article
  5. Review
  6. Article
  7. Random walk and cell morphology dynamics inFrontiers in cell and developmental biology · 2023
    Article
  8. Giant cells: multiple cells unite to survive.Frontiers in cellular and infection microbiology · 2023
    Review
  9. Article
  10. Encoding memory in tube diameter hierarchy of living flow network.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. Article
  13. Oscillatory fluid flow drives scaling of contraction wave with system size.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  14. Fluid flows shaping organism morphology.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Review
  15. Self-organized mechano-chemical dynamics in amoeboid locomotion ofJournal of physics D: Applied physics · 2017
    Article
  16. Mechanism of signal propagation inProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  17. Article
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

5 authors at 4 institutions in 2 countries.

Jean-Paul RieuInstitut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France jean-paul.rieu@univ-lyon1.fr.
Hélène Delanoë-AyariInstitut Lumière Matière, UMR5306 Université Lyon 1-CNRS, Université de Lyon, 69622 Villeurbanne cedex, France.
Seiji TakagiResearch Institute for Electronic Science, Hokkaido University, N20W10, Sapporo 060-0806, Japan.
Yoshimi TanakaGraduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan.
Toshiyuki NakagakiResearch Institute for Electronic Science, Hokkaido University, N20W10, Sapporo 060-0806, Japan JST, CREST, 5, Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan nakagaki@es.hokudai.ac.jp.
Hokkaido University · JPCentre National de la Recherche Scientifique · FRUniversité Claude Bernard Lyon 1 · FRYokohama National University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The slime mould Physarum polycephalum is a giant multinucleated cell exhibiting well-known Ca(2+)-dependent actomyosin contractions of its vein network driving the so-called cytoplasmic shuttle streaming. Its actomyosin network forms both a filamentous cortical layer and large fibrils. In order to understand the role of each structure in the locomotory activity, we performed birefringence observations and traction force microscopy on excised fragments of Physarum. After several hours, these microplasmodia adopt three main morphologies: flat motile amoeba, chain types with round contractile heads connected by tubes and motile hybrid types. Each type exhibits oscillations with a period of about 1.5 min of cell area, traction forces and fibril activity (retardance) when fibrils are present. The amoeboid types show only peripheral forces while the chain types present a never-reported force pattern with contractile rings far from the cell boundary under the spherical heads. Forces are mostly transmitted where the actomyosin cortical layer anchors to the substratum, but fibrils maintain highly invaginated structures and contribute to forces by increasing the length of the anchorage line. Microplasmodia are motile only when there is an asymmetry in the shape and/or the force distribution.

Indexed as

Models, BiologicalBiological ClocksCell AdhesionCell MovementComputer SimulationLocomotionPeriodicityPhysarum polycephalumShear StrengthSpatio-Temporal AnalysisStress, Mechanicalactomyosin contractilityamoeboid motilitybirefringencephysarumtraction force microscopy

Identifiers

PMID25808339
PMCPMC4424688
OpenAlexW2062616003

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.