Evidence map›Paper›PMID 19749039›Full record

ArticleJournal of bacteriology2009

Laboratory strains of Bacillus subtilis do not exhibit swarming motility.

Joyce E Patrick, Daniel B Kearns

Abstract read
In one paragraph

Article in Journal of bacteriology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed
–field-weighted citation impact
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

55 citing papers in PubMed.

  1. Article
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  5. Draft genome sequences ofMicrobiology resource announcements · 2026
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  8. The extracytoplasmic sigma factor σScientific reports · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Screening of compound-formulatedFrontiers in plant science · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

2 authors.

Joyce E PatrickIndiana University, Department of Biology, 1001 East Third Street, Bloomington, IN 47405, USA.
Daniel B Kearns

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We redemonstrate that SwrA is essential for swarming motility in Bacillus subtilis, and we reassert that laboratory strains of B. subtilis do not swarm. Additionally, we find that a number of other genes, previously reported to be required for swarming in laboratory strains, are dispensable for robust swarming motility in an undomesticated strain. We attribute discrepancies in the literature to a lack of reproducible standard experimental conditions, selection for spontaneous swarming suppressors, inadvertent genetic linkage to swarming mutations, and auxotrophy.

Indexed as

Bacillus subtilisBacterial ProteinsGene Expression Regulation, BacterialLocomotionBacterial Proteins

Identifiers

PMID19749039
PMCPMC2772471

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.