Evidence map›Paper›PMID 26216845›Full record

ArticleJournal of bacteriology2015

Acetate Exposure Determines the Diauxic Behavior of Escherichia coli during the Glucose-Acetate Transition.

Brice Enjalbert, Muriel Cocaign-Bousquet, Jean-Charles Portais, Fabien Letisse

Abstract read
In one paragraph

Article in Journal of bacteriology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Ribosome-binding antibiotics increase bacterial longevity and growth efficiency.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  6. Model-Based Characterization ofBioengineering (Basel, Switzerland) · 2023
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  7. A Unique Response Behavior in the Dissolved Oxygen Tension inBioengineering (Basel, Switzerland) · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Emergence of diauxie as an optimal growth strategy under resource allocation constraints in cellular metabolism.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Transcriptional Changes in the Xylose Operon inInternational journal of molecular sciences · 2019
    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

4 authors.

Brice EnjalbertUniversité de Toulouse, INSA, UPS, INP, Toulouse, France INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, Toulouse, France CNRS, UMR5504, Toulouse, France brice.enjalbert@insa-toulouse.fr.
Muriel Cocaign-BousquetUniversité de Toulouse, INSA, UPS, INP, Toulouse, France INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, Toulouse, France CNRS, UMR5504, Toulouse, France.
Jean-Charles PortaisUniversité de Toulouse, INSA, UPS, INP, Toulouse, France INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, Toulouse, France CNRS, UMR5504, Toulouse, France.
Fabien LetisseUniversité de Toulouse, INSA, UPS, INP, Toulouse, France INRA, UMR792 Ingénierie des Systèmes Biologiques et des Procédés, Toulouse, France CNRS, UMR5504, Toulouse, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledGrowth of Escherichia coli on glucose in batch culture is accompanied by the excretion of acetate, which is consumed by the cells when glucose is exhausted. This glucose-acetate transition is classically described as a diauxie (two successive growth stages). Here, we investigated the physiological and metabolic properties of cells after glucose exhaustion through the analysis of growth parameters and gene expression. We found that E. coli cells grown on glucose in batch culture produce acetate and consume it after glucose exhaustion but do not grow on acetate. Acetate is catabolized, but key anabolic genes--such as the genes encoding enzymes of the glyoxylate shunt--are not upregulated, hence preventing growth. Both the induction of the latter anabolic genes and growth were observed only after prolonged exposure to low concentrations of acetate and could be accelerated by high acetate concentrations. We postulate that such decoupling between acetate catabolism and acetate anabolism might be an advantage for the survival of E. coli in the ever-changing environment of the intestine. IMPORTANCE: The glucose-acetate transition is a valuable experimental model for comprehensive investigations of metabolic adaptation and a current paradigm for developing modeling approaches in systems microbiology. Yet, the work reported in our paper demonstrates that the metabolic behavior of Escherichia coli during the glucose-acetate transition is much more complex than what has been reported so far. A decoupling between acetate catabolism and acetate anabolism was observed after glucose exhaustion, which has not been reported previously. This phenomenon could represent a strategy for optimal utilization of carbon resources during colonization and persistence of E. coli in the gut and is also of significant interest for biotechnological applications.

Indexed as

AcetatesEscherichia coliGene Expression Regulation, BacterialGlucoseUp-RegulationAcetatesGlucose

Identifiers

PMID26216845
PMCPMC4560281

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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.