Evidence map›Paper›PMID 32357828›Full record

ArticleBMC molecular and cell biology2020

Bacterial cell growth is arrested by violet and blue, but not yellow light excitation during fluorescence microscopy.

Nina El Najjar, Muriel C F van Teeseling, Benjamin Mayer, Silke Hermann, Martin Thanbichler, Peter L Graumann

Open access · goldAbstract read
In one paragraph

Article in BMC molecular and cell biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
5.9field-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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Guideline
  2. Plasmid partitioning driven by collective migration of ParA between nucleoid lobes.Proceedings of the National Academy of Sciences of the United States of America · 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

6 authors at 2 institutions in 1 country.

Nina El NajjarCenter for Synthetic Microbiology (SYNMIKRO), Hans-Meerwein-Straße, 35043, Marburg, Germany.
Muriel C F van TeeselingDepartment of Chemistry, University of Marburg, Hans-Meerwein-Straße 4, 35032, Marburg, Germany.
Benjamin MayerCenter for Synthetic Microbiology (SYNMIKRO), Hans-Meerwein-Straße, 35043, Marburg, Germany.
Silke HermannCenter for Synthetic Microbiology (SYNMIKRO), Hans-Meerwein-Straße, 35043, Marburg, Germany.
Martin ThanbichlerCenter for Synthetic Microbiology (SYNMIKRO), Hans-Meerwein-Straße, 35043, Marburg, Germany.
Peter L GraumannCenter for Synthetic Microbiology (SYNMIKRO), Hans-Meerwein-Straße, 35043, Marburg, Germany. graumanp@uni-marburg.de.
Philipps University of Marburg · DELoewe Center for Synthetic Microbiology · DE

Funding

Deutsche Forschungsgemeinschaft TRR174
6 · The paper itself

Abstract

backgroundFluorescence microscopy is a powerful tool in cell biology, especially for the study of dynamic processes. Intensive irradiation of bacteria with UV, blue and violet light has been shown to be able to kill cells, but very little information is available on the effect of blue or violet light during live-cell imaging.

resultsWe show here that in the model bacterium Bacillus subtilis chromosome segregation and cell growth are rapidly halted by standard violet (405 nm) and blue light (CFP) (445-457 nm) excitation, whereas they are largely unaffected by green light (YFP). The stress sigma factor σ

conclusionsOur experiments show that care must be taken in the design of live-cell imaging experiments in that violet or blue excitation effects must be closely controlled during and after imaging. Violet excitation during sptPALM or other imaging studies involving photoactivation has a threshold, below which little effects can be seen, but above which a sharp transition into cell death occurs. YFP imaging proves to be better suited for time-lapse studies, especially when cell cycle or cell growth parameters are to be examined.

Indexed as

Microscopy, FluorescenceTime-Lapse ImagingBacillus subtilisCaulobacter crescentusCell Cycle CheckpointsColorEscherichia coliLightLuminescent ProteinsSigma FactorTime FactorsLuminescent ProteinsSigma FactorBacterial cell cycleBlue light sensitivityFluorescence microscopyLive cell imaging

Identifiers

PMID32357828
PMCPMC7193368
OpenAlexW3023240097

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.