Evidence map›Paper›PMID 28790202›Full record

ArticlemBio2017

Tethered Magnets Are the Key to Magnetotaxis: Direct Observations of

Azuma Taoka, Ayako Kiyokawa, Chika Uesugi, Yousuke Kikuchi, Zachery Oestreicher, Kaori Morii, Yukako Eguchi, Yoshihiro Fukumori

Open access · goldAbstract read
In one paragraph

Article in mBio, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

15 citing papers in PubMed, 29 citations in OpenAlex.

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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

8 authors at 2 institutions in 2 countries.

Azuma TaokaSchool of Natural System, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Japan aztaoka@staff.kanazawa-u.ac.jp.
Ayako KiyokawaDepartment of Life Science, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Japan.
Chika UesugiDepartment of Life Science, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Japan.
Yousuke KikuchiSchool of Natural System, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Japan.
Zachery OestreicherSchool of Environment and Natural Resources, The Ohio State University, Columbus, Ohio, USA.
Kaori MoriiDepartment of Life Science, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Japan.
Yukako EguchiDepartment of Life Science, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa, Japan.
Yoshihiro FukumoriSchool of Natural System, College of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Japan.
Kanazawa University · JPThe Ohio State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Magnetotactic bacteria are a unique group of bacteria that synthesize a magnetic organelle termed the magnetosome, which they use to assist with their magnetic navigation in a specific type of bacterial motility called magneto-aerotaxis. Cytoskeletal filaments consisting of the actin-like protein MamK are associated with the magnetosome chain. Previously, the function of MamK was thought to be in positioning magnetosome organelles; this was proposed based on observations via electron microscopy still images. Here, we conducted live-cell time-lapse fluorescence imaging analyses employing highly inclined and laminated optical sheet microscopy, and these methods enabled us to visualize detailed dynamic movement of magnetosomes in growing cells during the entire cell cycle with high-temporal resolution and a high signal/noise ratio. We found that the MamK cytoskeleton anchors magnetosomes through a mechanism that requires MamK-ATPase activity throughout the cell cycle to prevent simple diffusion of magnetosomes within the cell. We concluded that the static chain-like arrangement of the magnetosomes is required to precisely and consistently segregate the magnetosomes to daughter cells. Thus, the daughter cells inherit a functional magnetic sensor that mediates magneto-reception.

Indexed as

Cell CycleMagnetsActin CytoskeletonActinsBacterial ProteinsCytoskeletonFluorescenceMagnetosomesMagnetospirillumMicroscopy, ElectronTime-Lapse ImagingActinsBacterial Proteinsactin-like proteinbacterial organellecytoskeletonlive-cell imagingmagneto-receptionmagnetosome

Identifiers

PMID28790202
PMCPMC5550748
OpenAlexW2742786193

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.