Evidence map›Paper›PMID 24983865›Full record

ArticlePloS one2014

Influence of magnetic fields on magneto-aerotaxis.

Mathieu Bennet, Aongus McCarthy, Dmitri Fix, Matthew R Edwards, Felix Repp, Peter Vach, John W C Dunlop, Metin Sitti, Gerald S Buller, Stefan Klumpp and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
6.0field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 67 citations in OpenAlex.

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  8. Escape motility of multicellular magnetotactic prokaryotes.Journal of the Royal Society, Interface · 2024
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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

11 authors at 5 institutions in 3 countries.

Mathieu BennetDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany.
Aongus McCarthyInstitute of Photonics and Quantum Sciences, and Scottish Universities Physics Alliance (SUPA), School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, United Kingdom.
Dmitri FixDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany.
Matthew R EdwardsDepartment of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America.
Felix ReppDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany.
Peter VachDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany.
John W C DunlopDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany.
Metin SittiDepartment of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of America.
Gerald S BullerInstitute of Photonics and Quantum Sciences, and Scottish Universities Physics Alliance (SUPA), School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, United Kingdom.
Stefan KlumppDepartment of Theory and Bio-systems, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany.
Damien FaivreDepartment of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, Potsdam, Germany.
Max Planck Institute of Colloids and Interfaces · DECarnegie Mellon University · USMax Planck Society · DEHeriot-Watt University · GBScottish Universities Physics Alliance · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The response of cells to changes in their physico-chemical micro-environment is essential to their survival. For example, bacterial magnetotaxis uses the Earth's magnetic field together with chemical sensing to help microorganisms move towards favoured habitats. The studies of such complex responses are lacking a method that permits the simultaneous mapping of the chemical environment and the response of the organisms, and the ability to generate a controlled physiological magnetic field. We have thus developed a multi-modal microscopy platform that fulfils these requirements. Using simultaneous fluorescence and high-speed imaging in conjunction with diffusion and aerotactic models, we characterized the magneto-aerotaxis of Magnetospirillum gryphiswaldense. We assessed the influence of the magnetic field (orientation; strength) on the formation and the dynamic of a micro-aerotactic band (size, dynamic, position). As previously described by models of magnetotaxis, the application of a magnetic field pointing towards the anoxic zone of an oxygen gradient results in an enhanced aerotaxis even down to Earth's magnetic field strength. We found that neither a ten-fold increase of the field strength nor a tilt of 45° resulted in a significant change of the aerotactic efficiency. However, when the field strength is zeroed or when the field angle is tilted to 90°, the magneto-aerotaxis efficiency is drastically reduced. The classical model of magneto-aerotaxis assumes a response proportional to the cosine of the angle difference between the directions of the oxygen gradient and that of the magnetic field. Our experimental evidence however shows that this behaviour is more complex than assumed in this model, thus opening up new avenues for research.

Indexed as

MagneticsMagnetospirillum

Identifiers

PMID24983865
PMCPMC4077765
OpenAlexW2044026410

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.