ArticleScientific reports2019
Functional compartmentalization in the hemocoel of insects.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 27 citations in OpenAlex.
- Spatial microenvironments tune immune response dynamics in the Drosophila larval fat body.PLoS genetics · 2026Article
- Spatial microenvironments tune immune response dynamics in thebioRxiv : the preprint server for biology · 2025Article
- Evolutionary Trajectories of Consciousness: From Biological Foundations to Technological Horizons.Brain sciences · 2025Review
- Extracting Cardiac Activity for Arthropods Using Digital Cameras: Insights From a Pilot Study.Archives of insect biochemistry and physiology · 2025Article
- Functioning of unidirectional ventilation in flying hawkmoths evaluated by pressure and oxygen measurements and X-ray video and tomography.The Journal of experimental biology · 2024Article
- Article
- Complex hemolymph circulation patterns in grasshopper wings.Communications biology · 2023Article
- Physiological responses to gravity in an insect.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The insect circulatory system contains an open hemocoel, in which the mechanism of hemolymph flow control is ambiguous. As a continuous fluidic structure, this cavity should exhibit pressure changes that propagate quickly. Narrow-waisted insects create sustained pressure differences across segments, but their constricted waist provides an evident mechanism for compartmentalization. Insects with no obvious constrictions between segments may be capable of functionally compartmentalizing the body, which could explain complex hemolymph flows. Here, we test the hypothesis of functional compartmentalization by measuring pressures in a beetle and recording abdominal movements. We found that the pressure is indeed uniform within the abdomen and thorax, congruent with the predicted behavior of an open system. However, during some abdominal movements, pressures were on average 62% higher in the abdomen than in the thorax, suggesting that functional compartmentalization creates a gradient within the hemocoel. Synchrotron tomography and dissection show that the arthrodial membrane and thoracic muscles may contribute to this dynamic pressurization. Analysis of volume change suggests that the gut may play an important role in regulating pressure by translating between body segments. Overall, this study suggests that functional compartmentalization may provide an explanation for how fluid flows are managed in an open circulatory system.
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