Evidence map›Paper›PMID 22375627›Full record

ArticleMolecular microbiology2012

A glycine betaine importer limits Salmonella stress resistance and tissue colonization by reducing trehalose production.

M Carolina Pilonieta, Toni A Nagy, Dana R Jorgensen, Corrella S Detweiler

Open access · bronzeAbstract read
In one paragraph

Article in Molecular microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
6.2field-weighted citation impact, top 5% 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

19 citing papers in PubMed, 30 citations in OpenAlex.

  1. How Salmonella Works Under Osmotic and Desiccation Stresses.Comprehensive reviews in food science and food safety · 2026
    Review
  2. Sugar-sensing swodkoreceptors and swodkocrine signaling.Animal models and experimental medicine · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. RpoS-regulatedVirulence · 2020
    Article
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  9. Article
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  11. Frontiers in microbiology · 2016
    Article
  12. Article
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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

4 authors at 1 institution in 1 country.

M Carolina PilonietaDepartment of Molecular Cellular and Developmental Biology, University of Colorado, Boulder, CO 80309, USA. piloniet@colorado.edu
Toni A Nagy
Dana R Jorgensen
Corrella S Detweiler
University of Colorado Boulder · US

Funding

Persistent Systemic Infection of Mice by Salmonella EntericaR01AI072492 · NIAID · UNIVERSITY OF COLORADO · PI DETWEILER, CORRELLA S · 2007 to 2011
$1.8M
Hemophagocytic Macrophages and Systemic Salmonella InfectionR01AI095395 · NIAID · UNIVERSITY OF COLORADO · PI DETWEILER, CORRELLA S · 2012 to 2016
$1.7M
Hemophagocytic Macrophages and Systemic Salmonella InfectionR56AI095395 · NIAID · UNIVERSITY OF COLORADO · PI DETWEILER, CORRELLA S · 2011 to 2011
$376k
NIAID NIH HHS AI072492NIAID NIH HHS AI095395NIAID NIH HHS R01 AI072492NIAID NIH HHS R01 AI095395NIAID NIH HHS R56 AI095395
6 · The paper itself

Abstract

Mechanisms by which Salmonella establish chronic infections are not well understood. Microbes respond to stress by importing or producing compatible solutes, small molecules that stabilize proteins and lipids. The Salmonella locus opuABCD (also called OpuC) encodes a predicted importer of the compatible solute glycine betaine. Under stress conditions, if glycine betaine cannot be imported, Salmonella enterica produce the disaccharide trehalose, a highly effective compatible solute. We demonstrate that strains lacking opuABCD accumulate more trehalose under stress conditions than wild-type strains. ΔopuABCD mutant strains are more resistant to high-salt, low-pH and -hydrogen peroxide, conditions that mimic aspects of innate immunity, in a trehalose-dependent manner. In addition, ΔopuABCD mutant strains require the trehalose production genes to out-compete wild-type strains in mice and macrophages. These data suggest that in the absence of opuABCD, trehalose accumulation increases bacterial resistance to stress in broth and mice. Thus, opuABCD reduces bacterial colonization via a mechanism that limits trehalose production. Mechanisms by which microbes limit disease may reveal novel pathways as therapeutic targets.

Indexed as

Stress, PhysiologicalAnimalsBetaineDisease Models, AnimalGene DeletionHydrogen-Ion ConcentrationHydrogen PeroxideMacrophagesMembrane Transport ProteinsMiceSalinitySalmonella Infections, AnimalSalmonella typhimuriumSaltsTrehaloseBetaineHydrogen PeroxideMembrane Transport ProteinsSaltsTrehalose

Identifiers

PMID22375627
PMCPMC3323685
OpenAlexW1930253951

What OpenQuestion holds

Textmetadata
LicenceTDM
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.