Evidence map›Paper›PMID 15205434›Full record

ArticleJournal of bacteriology2004

Vibrio fischeri flagellin A is essential for normal motility and for symbiotic competence during initial squid light organ colonization.

Deborah S Millikan, Edward G Ruby

Open access · greenAbstract read
In one paragraph

Article in Journal of bacteriology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

67 citing papers in PubMed, 115 citations in OpenAlex.

  1. Review
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  5. Lighting the way: how theJournal of bacteriology · 2024
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  8. Functional characterization ofFrontiers in veterinary science · 2022
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  14. Review
  15. Article
  16. A T3SS Regulator Mutant ofFrontiers in cellular and infection microbiology · 2020
    Article
  17. Article
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  19. Article
  20. Frontiers in cellular and infection microbiology · 2019
    Review

7 more citing papers are in PubMed but not listed here.

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 at 1 institution in 1 country.

Deborah S MillikanPacific Biomedical Research Center, University of Hawaii, Honolulu, Hawaii 96813, USA.
Edward G Ruby
University of Hawaii System · US

Funding

VIBRIO VIRULENCE DETERMINANTS IN A BENIGN COLONIZATIONR01RR012294 · NCRR · UNIVERSITY OF WISCONSIN-MADISON · PI RUBY, EDWARD G · 1996 to 2011
$6.4M
NCRR NIH HHS R01 RR012294NCRR NIH HHS RR12294
6 · The paper itself

Abstract

The motile bacterium Vibrio fischeri is the specific bacterial symbiont of the Hawaiian squid Euprymna scolopes. Because motility is essential for initiating colonization, we have begun to identify stage-specific motility requirements by creating flagellar mutants that have symbiotic defects. V. fischeri has six flagellin genes that are uniquely arranged in two chromosomal loci, flaABCDE and flaF. With the exception of the flaA product, the predicted gene products are more similar to each other than to flagellins of other Vibrio species. Immunoblot analysis indicated that only five of the six predicted proteins were present in purified flagella, suggesting that one protein, FlaF, is unique with respect to either its regulation or its function. We created mutations in two genes, flaA and flaC. Compared to a flaC mutant, which has wild-type flagellation, a strain having a mutation in the flaA gene has fewer flagella per cell and exhibits a 60% decrease in its rate of migration in soft agar. During induction of light organ symbiosis, colonization by the flaA mutant is impaired, and this mutant is severely outcompeted when it is presented to the animal as a mixed inoculum with the wild-type strain. Furthermore, flaA mutant cells are preferentially expelled from the animal, suggesting either that FlaA plays a role in adhesion or that normal motility is an advantage for retention within the host. Taken together, these results show that the flagellum of V. fischeri is a complex structure consisting of multiple flagellin subunits, including FlaA, which is essential both for normal flagellation and for motility, as well as for effective symbiotic colonization.

Indexed as

SymbiosisAnimalsChromosome MappingDecapodiformesFlagellinLightMovementVibrioflaA protein, bacteriaFlagellin

Identifiers

PMID15205434
PMCPMC421587
OpenAlexW2142233839

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.