Evidence map›Paper›PMID 33686090›Full record

ArticleNPJ microgravity2021

Modeled microgravity alters lipopolysaccharide and outer membrane vesicle production of the beneficial symbiont Vibrio fischeri.

Madeline M Vroom, Yaneli Rodriguez-Ocasio, Jonathan B Lynch, Edward G Ruby, Jamie S Foster

Open access · goldAbstract read
In one paragraph

Article in NPJ microgravity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Outer membrane vesicles inMicrobial cell (Graz, Austria) · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Response ofJournal of bacteriology · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Modelled-Microgravity Reduces Virulence Factor Production inInternational journal of molecular sciences · 2023
    Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. 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

5 authors at 2 institutions in 1 country.

Madeline M VroomDepartment of Microbiology and Cell Science, Space Life Science Lab, University of Florida, Merritt Island, FL, USA.ORCID http://orcid.org/0000-0002-7560-359X
Yaneli Rodriguez-OcasioDepartment of Microbiology and Cell Science, Space Life Science Lab, University of Florida, Merritt Island, FL, USA.ORCID http://orcid.org/0000-0002-4727-4418
Jonathan B LynchPacific Biosciences Research Center, Kewalo Marine Laboratory, University of Hawai'i at Manoa, Honolulu, HI, USA.ORCID http://orcid.org/0000-0001-5221-7090
Edward G RubyPacific Biosciences Research Center, Kewalo Marine Laboratory, University of Hawai'i at Manoa, Honolulu, HI, USA.ORCID http://orcid.org/0000-0002-4112-4830
Jamie S FosterDepartment of Microbiology and Cell Science, Space Life Science Lab, University of Florida, Merritt Island, FL, USA. jfoster@ufl.edu.ORCID http://orcid.org/0000-0001-8603-4006
Kennedy Space Center · USUniversity of Hawaiʻi at Mānoa · US

Funding

Determination of outer membrane vesicle composition and effector activity in the Vibrio fischeri-Euprymna scolopes symbiosisF32GM119238 · NIGMS · UNIVERSITY OF HAWAII AT MANOA · PI LYNCH, JONATHAN · 2016 to 2018
$174k
NIGMS NIH HHS F32 GM119238
6 · The paper itself

Abstract

Reduced gravity, or microgravity, can have a pronounced impact on the physiology of animals, but the effects on their associated microbiomes are not well understood. Here, the impact of modeled microgravity on the shedding of Gram-negative lipopolysaccharides (LPS) by the symbiotic bacterium Vibrio fischeri was examined using high-aspect ratio vessels. LPS from V. fischeri is known to induce developmental apoptosis within its symbiotic tissues, which is accelerated under modeled microgravity conditions. In this study, we provide evidence that exposure to modeled microgravity increases the amount of LPS released by the bacterial symbiont in vitro. The higher rates of shedding under modeled microgravity conditions are associated with increased production of outer-membrane vesicles (OMV), which has been previously correlated to flagellar motility. Mutants of V. fischeri defective in the production and rotation of their flagella show significant decreases in LPS shedding in all treatments, but levels of LPS are higher under modeled microgravity despite loss of motility. Modeled microgravity also appears to affect the outer-membrane integrity of V. fischeri, as cells incubated under modeled microgravity conditions are more susceptible to cell-membrane-disrupting agents. These results suggest that, like their animal hosts, the physiology of symbiotic microbes can be altered under microgravity-like conditions, which may have important implications for host health during spaceflight.

Identifiers

PMID33686090
PMCPMC7940393
OpenAlexW3133893803

What OpenQuestion holds

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Registered trials

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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.