Evidence map›Paper›PMID 27412285›Full record

ArticleProceedings. Biological sciences2016

Proline as a fuel for insect flight: enhancing carbohydrate oxidation in hymenopterans.

Loïc Teulier, Jean-Michel Weber, Julie Crevier, Charles-A Darveau

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
20.2field-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

72 citing papers in PubMed, 160 citations in OpenAlex.

  1. Article
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  9. The metabolic costs of meiotic drive.Proceedings. Biological sciences · 2025
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  14. Effects of pollen patties with curcumin-steviol glycoside complex onJournal of animal science and technology · 2025
    Article
  15. Article
  16. Review
  17. Stage-resolved transcriptomic profiling ofFrontiers in insect science · 2025
    Article
  18. Article
  19. Article
  20. Review

12 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

4 authors at 1 institution in 2 countries.

Loïc TeulierDepartment of Biology, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5 Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés, UMR 5023, CNRS, Université Claude Bernard Lyon 1, Villeurbanne 69622, France.
Jean-Michel WeberDepartment of Biology, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5.
Julie CrevierDepartment of Biology, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5.
Charles-A DarveauDepartment of Biology, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5 cdarveau@uottawa.ca.
University of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bees are thought to be strict users of carbohydrates as metabolic fuel for flight. Many insects, however, have the ability to oxidize the amino acid proline at a high rate, which is a unique feature of this group of animals. The presence of proline in the haemolymph of bees and in the nectar of plants led to the hypothesis that plants may produce proline as a metabolic reward for pollinators. We investigated flight muscle metabolism of hymenopteran species using high-resolution respirometry performed on permeabilized muscle fibres. The muscle fibres of the honeybee, Apis mellifera, do not have a detectable capacity to oxidize proline, as those from the migratory locust, Locusta migratoria, used here as an outgroup representative. The closely related bumblebee, Bombus impatiens, can oxidize proline alone and more than doubles its respiratory capacity when proline is combined with carbohydrate-derived substrates. A distant wasp species, Vespula vulgaris, exhibits the same metabolic phenotype as the bumblebee, suggesting that proline oxidation is common in hymenopterans. Using a combination of mitochondrial substrates and inhibitors, we further show that in B. impatiens, proline oxidation provides reducing equivalents and electrons directly to the electron transport system. Together, these findings demonstrate that some bee and wasp species can greatly enhance the oxidation of carbohydrates using proline as fuel for flight.

Indexed as

Carbohydrate MetabolismFlight, AnimalAnimalsBeesHemolymphOxidation-ReductionProlineWaspsProlinebeesevolutionmetabolismmitochondriapollinatorsproline

Identifiers

PMID27412285
PMCPMC4947884
OpenAlexW2472311177

What OpenQuestion holds

Textmetadata
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.