Evidence map›Paper›PMID 27250760›Full record

ArticleScientific reports2016

Molecular mechanism and functional significance of acid generation in the Drosophila midgut.

Gayle Overend, Yuan Luo, Louise Henderson, Angela E Douglas, Shireen A Davies, Julian A T Dow

Abstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing 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

58 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Gut-brain communication in Drosophila melanogaster.Current opinion in neurobiology · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. The integral role of the Black Soldier fly,Frontiers in microbiomes · 2025
    Review
  11. Article
  12. Article
  13. Microbiota-derived acetylcholine can promote gut motility inPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Article
  14. The role of animal hosts in shaping gut microbiome variation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  15. Factors Related toLife (Basel, Switzerland) · 2024
    Article
  16. Structural and Functional Characterization ofMolecules (Basel, Switzerland) · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Nutrient Sensing via Gut inInternational journal of molecular sciences · 2022
    Review
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

6 authors.

Gayle OverendInstitute of Molecular, Cell &Systems Biology, College of Medical, Veterinary &Life Sciences, University of Glasgow, Glasgow, UK.
Yuan LuoDepartment of Entomology and Department of Molecular Biology and Genetics, Cornell University, New York State, USA.
Louise HendersonInstitute of Molecular, Cell &Systems Biology, College of Medical, Veterinary &Life Sciences, University of Glasgow, Glasgow, UK.
Angela E DouglasDepartment of Entomology and Department of Molecular Biology and Genetics, Cornell University, New York State, USA.
Shireen A DaviesInstitute of Molecular, Cell &Systems Biology, College of Medical, Veterinary &Life Sciences, University of Glasgow, Glasgow, UK.
Julian A T DowInstitute of Molecular, Cell &Systems Biology, College of Medical, Veterinary &Life Sciences, University of Glasgow, Glasgow, UK.

Funding

Drosophila Transgenic RNAi Resource ProjectR01GM084947 · NIGMS · HARVARD MEDICAL SCHOOL · PI PERRIMON, NORBERT · 2008 to 2019
$9.8M
Biotechnology and Biological Sciences Research CouncilNIGMS NIH HHS R01 GM084947
6 · The paper itself

Abstract

The gut of Drosophila melanogaster includes a proximal acidic region (~pH 2), however the genome lacks the H(+)/K(+) ATPase characteristic of the mammalian gastric parietal cell, and the molecular mechanisms of acid generation are poorly understood. Here, we show that maintenance of the low pH of the acidic region is dependent on H(+) V-ATPase, together with carbonic anhydrase and five further transporters or channels that mediate K(+), Cl(-) and HCO3(-) transport. Abrogation of the low pH did not influence larval survival under standard laboratory conditions, but was deleterious for insects subjected to high Na(+) or K(+) load. Insects with elevated pH in the acidic region displayed increased susceptibility to Pseudomonas pathogens and increased abundance of key members of the gut microbiota (Acetobacter and Lactobacillus), suggesting that the acidic region has bacteriostatic or bacteriocidal activity. Conversely, the pH of the acidic region was significantly reduced in germ-free Drosophila, indicative of a role of the gut bacteria in shaping the pH conditions of the gut. These results demonstrate that the acidic gut region protects the insect and gut microbiome from pathological disruption, and shed light on the mechanisms by which low pH can be maintained in the absence of H(+), K(+) ATPase.

Indexed as

Acid-Base EquilibriumAnimalsBiological Transport, ActiveCarbonic AnhydrasesDrosophila melanogasterDrosophila ProteinsGastrointestinal MicrobiomeGastrointestinal TractPotassiumSodiumVacuolar Proton-Translocating ATPasesCarbonic AnhydrasesDrosophila ProteinsPotassiumSodiumVacuolar Proton-Translocating ATPases

Identifiers

PMID27250760
PMCPMC4890030

What OpenQuestion holds

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LicenceCC BY
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.