Evidence map›Paper›PMID 32059765›Full record

ArticleCurrent biology : CB2020

Biosurfactant-Mediated Membrane Depolarization Maintains Viability during Oxygen Depletion in Bacillus subtilis.

Heidi A Arjes, Lam Vo, Caroline M Dunn, Lisa Willis, Christopher A DeRosa, Cassandra L Fraser, Daniel B Kearns, Kerwyn Casey Huang

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
9.3field-weighted citation impact, top 1% 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

23 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Initiation of swarming inProceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Differential survival and tolerance mechanisms ofApplied and environmental microbiology · 2026
    Article
  4. Animals : an open access journal from MDPI · 2025
    Article
  5. Surfactin acceleratesBiofilm · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. A mini-review: mechanism of antimicrobial action and application of surfactin.World journal of microbiology & biotechnology · 2022
    Review
  16. Article
  17. Article
  18. Nitric oxide stimulates type IV MSHA pilus retraction inProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Heidi A ArjesDepartment of Bioengineering, Stanford University School of Medicine, 443 via Ortega, Stanford, CA 94305, USA.
Lam VoDepartment of Bioengineering, Stanford University School of Medicine, 443 via Ortega, Stanford, CA 94305, USA.
Caroline M DunnDepartment of Biology, 1001 E 3rd Street, Indiana University, Bloomington, IN 47405, USA.
Lisa WillisDepartment of Bioengineering, Stanford University School of Medicine, 443 via Ortega, Stanford, CA 94305, USA.
Christopher A DeRosaDepartment of Chemistry, McCormick Road, University of Virginia, Charlottesville, VA 22904, USA.
Cassandra L FraserDepartment of Chemistry, McCormick Road, University of Virginia, Charlottesville, VA 22904, USA.
Daniel B KearnsDepartment of Biology, 1001 E 3rd Street, Indiana University, Bloomington, IN 47405, USA. Electronic address: dbkearns@indiana.edu.
Kerwyn Casey HuangDepartment of Bioengineering, Stanford University School of Medicine, 443 via Ortega, Stanford, CA 94305, USA; Department of Microbiology & Immunology, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA 94305, USA; Chan Zuckerberg Biohub, 499 Illinois Street, San Francisco, CA 94158, USA. Electronic address: kchuang@stanford.edu.
Stanford University · USIndiana University Bloomington · USMcCormick (United States) · USChan Zuckerberg Initiative (United States) · US

Funding

Swarming motility and the regulation of flagellar biosynthesis in Bacillus subtilisR35GM131783 · NIGMS · TRUSTEES OF INDIANA UNIVERSITY · PI Daniel B Kearns · 2019 to 2026
$3.9M
Luminescent Oxygen Nanosensors for Tumor Hypoxia ImagingR01CA167250 · NCI · UNIVERSITY OF VIRGINIA · PI FRASER, CASSANDRA L · 2012 to 2016
$1.7M
NCI NIH HHS R01 CA167250NIGMS NIH HHS R35 GM131783
6 · The paper itself

Abstract

The presence or absence of oxygen in the environment is a strong effector of cellular metabolism and physiology. Like many eukaryotes and some bacteria, Bacillus subtilis primarily utilizes oxygen during respiration to generate ATP. Despite the importance of oxygen for B. subtilis survival, we know little about how populations adapt to shifts in oxygen availability. Here, we find that when oxygen was depleted from stationary phase B. subtilis cultures, ∼90% of cells died while the remaining cells maintained colony-forming ability. We discover that production of the antimicrobial surfactin confers two oxygen-related fitness benefits: it increases aerobic growth yield by increasing oxygen diffusion, and it maintains viability during oxygen depletion by depolarizing the membrane. Strains unable to produce surfactin exhibited an ∼50-fold reduction in viability after oxygen depletion. Surfactin treatment of these cells led to membrane depolarization and reduced ATP production. Chemical and genetic perturbations that alter oxygen consumption or redox state support a model in which surfactin-mediated membrane depolarization maintains viability through slower oxygen consumption and/or a shift to a more reduced metabolic profile. These findings highlight the importance of membrane potential in regulating cell physiology and growth, and demonstrate that antimicrobials that depolarize cell membranes can benefit cells when the terminal electron acceptor in respiration is limiting. This foundational knowledge has deep implications for environmental microbiology, clinical anti-bacterial therapy, and industrial biotechnology.

Indexed as

Bacillus subtilisBacterial ProteinsCell MembraneOxygenBacterial ProteinsOxygenaerobic respirationbiosurfactantcell lysishypoxiamembrane depolarizationmembrane potentialoxygen depletionoxygen diffusionsurfactin

Identifiers

PMID32059765
PMCPMC7153240
OpenAlexW3005923653

What OpenQuestion holds

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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.