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Updated: Jan 30, 2026
08:49
Assessing Agrochemical Risk to Mated Honey Bee Queens
Published on: March 3, 2021
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Tissue-specific mitochondrial pathway remodeling linked to longevity in honeybee queens
Clément Joël Lucien Chevret1,2, José Francisco Echegaray1, Alexander Walton3,4
1Faculty Saint-Jean, University of Alberta, Edmonton, Alberta, Canada.
Plos One
|January 28, 2026
Summary
Honeybee lifespan differences are linked to mitochondrial metabolism. Queens, living longer, show distinct metabolic flexibility in head and fat tissues compared to short-lived workers.
Area of Science:
- Mitochondrial biology
- Insect physiology
- Evolutionary biology
Background:
- Mitochondrial metabolism is crucial for lifespan across species.
- Honeybees (Apis mellifera) exhibit extreme lifespan differences between queens (2+ years) and workers (~30 days).
- This study uses honeybees to investigate caste- and tissue-specific mitochondrial regulation.
Purpose of the Study:
- To compare mitochondrial function in queens and workers at different life stages.
- To identify how mitochondrial pathways contribute to lifespan divergence in honeybees.
Main Methods:
- Mitochondrial function was assessed in head, thoracic muscle, and abdominal fat tissues.
- Comparisons were made between early (7 days) and late adult stages.
- Flux control ratios and pathway contributions (NADH, Succinate, Glycerophosphate) were analyzed.
Main Results:
- Thoracic muscle showed no significant differences in mitochondrial flux control.
- Queens exhibited reduced reliance on NADH-linked pathways in head and fat tissues, compensated by increased Glycerophosphate pathway use.
- Queens had reduced phosphorylation pathway control over OXPHOS in head and abdominal fat tissues.
Conclusions:
- Caste- and tissue-specific mitochondrial regulation patterns contribute to lifespan divergence in honeybees.
- Early-life metabolic flexibility in queens may be key to their extended longevity.
- Findings offer insights into life history evolution in social insects.
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