Cited by 46Marine Sponges and Natural ProductsMarine Invertebrate Physiology and EcologyEchinoderm biology and ecology

Sponge Behavior and the Chemical Basis of Responses: A Post-Genomic View

Leys, Sally P, Mah, Jasmine L, McGill, Paul R, Hamonic, Laura, De Leo, Fabio C, Kahn, Amanda S·2019·Integrative and Comparative Biology

Abstract

Sponges perceive and respond to a range of stimuli. How they do this is still difficult to pin down despite now having transcriptomes and genomes of an array of species. Here we evaluate the current understanding of sponge behavior and present new observations on sponge activity in situ. We also explore biosynthesis pathways available to sponges from data in genomes/transcriptomes of sponges and other non-bilaterians with a focus on exploring the role of chemical signaling pathways mediating sponge behavior and how such chemical signal pathways may have evolved. Sponge larvae respond to light but opsins are not used, nor is there a common photoreceptor molecule or mechanism used across sponge groups. Other cues are gravity and chemicals. In situ recordings of behavior show that both shallow and deep-water sponges move a lot over minutes and hours, and correlation of behavior with temperature, pressure, oxygen, and water movement suggests that at least one sponge responds to changes in atmospheric pressure. The sensors for these cues as far as we know are individual cells and, except in the case of electrical signaling in Hexactinellida, these most likely act as independent effectors, generating a whole-body reaction by the global reach of the stimulus to all parts of the animal. We found no evidence for use of conventional neurotransmitters such as serotonin and dopamine. Intriguingly, some chemicals synthesized by symbiont microbes could mean other more complex signaling occurs, but how that interplay might happen is not understood. Our review suggests chemical signaling pathways found in sponges do not reflect loss of a more complex set.

Integrity signals

Registry

Crossref · 10.1093/icb/icz122

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115 of 115 references verified0 citation errors · 0 not checkable

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  • The timescale of sensing and action was slow in pre-Cambrian animals, as it is in extant adult sponges.

    “Most importantly, the timescale of sensing and action was slow, as it is in extant adult sponges [31].”

    From The social origins of consciousness (2025) · cites this paper as [31]

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Authors
Leys, S. P., Mah, J. L., McGill, P. R., Hamonic, L., De Leo, F. C., & Kahn, A. S.
Affiliations
  • University of Alberta (CA)
  • Monterey Bay Aquarium Research Institute (US)
  • Ocean Networks Canada, University of Victoria, Queenswood Campus 100-2474 Arbutus Road, Victoria, British Columbia, Canada V8N 1V8
Corresponding author
Leys, Sally P
Venue
Integrative and Comparative Biology
Published
2019-07-03
Volume
59
Issue
4
Pages
751-764
ISSN
  • 1540-7063 (ISSN-L)
  • 1557-7023
OpenAlex
W2953817598
Cited by
46
References
115
Citations by year
2026: 3 · 2025: 5 · 2024: 8 · 2023: 3 · 2022: 7 · 2021: 17 · 2020: 3
FWCI
3.72
Type
journal article
Language
en
Open access
closed
Locations
  • Integrative and Comparative Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
NSERC
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Marine Sponges and Natural Products
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Marine Invertebrate Physiology and Ecology
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Echinoderm biology and ecology
Keywords
sponges, chemical communication, sponge larvae, light response, gravity sensing, atmospheric pressure sensing, sponge genome, biosynthetic pathway, Hexactinellida, evolution of signaling pathways
MeSH terms
Animals, Movement, Porifera, Signal Transduction, Genome, Transcriptome

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