Evidence map›Paper›PMID 29979680›Full record

ArticlePLoS neglected tropical diseases2018

Both living bacteria and eukaryotes in the mosquito gut promote growth of larvae.

Luca Valzania, Vincent G Martinson, Ruby E Harrison, Bret M Boyd, Kerri L Coon, Mark R Brown, Michael R Strand

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed
10.3field-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

65 citing papers in PubMed, 136 citations in OpenAlex.

  1. Crosstalk in the cold: host-microbe interactions in insect diapause.Annals of the Entomological Society of America · 2026
    Review
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  7. Transcriptional Control of Lipid Metabolism.Advances in experimental medicine and biology · 2026
    Review
  8. Frontiers in microbiology · 2026
    Article
  9. Article
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  15. Insects · 2025
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article

5 more citing papers are in PubMed but not listed here.

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

7 authors at 1 institution in 1 country.

Luca ValzaniaDepartment of Entomology, The University of Georgia, Athens, GA, United States of America.ORCID 0000-0002-8955-3554
Vincent G MartinsonDepartment of Entomology, The University of Georgia, Athens, GA, United States of America.ORCID 0000-0001-5824-3548
Ruby E HarrisonDepartment of Entomology, The University of Georgia, Athens, GA, United States of America.
Bret M BoydDepartment of Entomology, The University of Georgia, Athens, GA, United States of America.
Kerri L CoonDepartment of Entomology, The University of Georgia, Athens, GA, United States of America.
Mark R BrownDepartment of Entomology, The University of Georgia, Athens, GA, United States of America.
Michael R StrandDepartment of Entomology, The University of Georgia, Athens, GA, United States of America.
University of Georgia · US

Funding

T32 Predoctoral training grant in geneticsT32GM007103 · NIGMS · UNIVERSITY OF GEORGIA (UGA) · PI DYER, KELLY A · 1985 to 2021
$5.9M
Training in Tropical and Emerging Global Diseases - SupplementT32AI060546 · NIAID · UNIVERSITY OF GEORGIA (UGA) · PI Silvia N Moreno, Vasant Muralidharan · 2004 to 2026
$5.1M
Role of the Gut Microbiome in Mosquito DevelopmentR01AI106892 · NIAID · UNIVERSITY OF GEORGIA · PI STRAND, MICHAEL · 2014 to 2023
$3.6M
NIAID NIH HHS R01 AI106892NIAID NIH HHS T32 AI060546NIGMS NIH HHS T32 GM007103
6 · The paper itself

Abstract

We recently reported that larval stage Aedes aegypti and several other species of mosquitoes grow when living bacteria are present in the gut but do not grow when living bacteria are absent. We further reported that living bacteria induce a hypoxia signal in the gut, which activates hypoxia-induced transcription factors and other processes larvae require for growth. In this study we assessed whether other types of organisms induce mosquito larvae to grow and asked if the density of non-living microbes or diet larvae are fed obviate the requirement for living organisms prior results indicated are required for growth. Using culture conditions identical to our own prior studies, we determined that inoculation density of living Escherichia coli positively affected growth rates of Ae. aegypti larvae, whereas non-living E. coli had no effect on growth across the same range of inoculation densities. A living yeast, alga, and insect cell line induced axenic Ae. aegypti first instars to grow, and stimulated similar levels of midgut hypoxia, HIF-α stabilization, and neutral lipid accumulation in the fat body as E. coli. However, the same organisms had no effect on larval growth if heat-killed. In addition, no axenic larvae molted when fed two other diets, when fed diets supplemented with heat-killed microbes or lysed and heat-killed microbes. Experiments conducted with An. gambiae yielded similar findings. Taken together, our results indicate that organisms from different prokaryotic and eukaryotic groups induce mosquito larvae to grow, whereas no conditions were identified that stimulated larvae to grow in the absence of living organisms.

Indexed as

AedesAnimalsBacteriaBiodiversityEukaryotaFemaleGastrointestinal TractLarvaMale

Identifiers

PMID29979680
PMCPMC6057668
OpenAlexW2878985009

What OpenQuestion holds

Textmetadata
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.