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Updated: Feb 14, 2026
10:25
Extraction of Venom and Venom Gland Microdissections from Spiders for Proteomic and Transcriptomic Analyses
Published on: November 3, 2014
34.6K
Dynamics of venom composition across a complex life cycle
Yaara Y Columbus-Shenkar1, Maria Y Sachkova1, Jason Macrander2
1Department of Ecology, Evolution and Behavior, Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
Elife
|February 10, 2018
Summary
Sea anemone venom production changes significantly from egg to adult stages. This study reveals dynamic venom evolution linked to developmental and ecological shifts in Nematostella vectensis.
Area of Science:
- Marine Biology
- Evolutionary Developmental Biology
- Toxicology
Background:
- Venom in early animal life stages is poorly understood.
- The sea anemone Nematostella vectensis shows early expression of toxins and stinging cells, suggesting venom presence in eggs and larvae.
Purpose of the Study:
- To investigate venom production dynamics during the development of Nematostella vectensis.
- To understand how venom composition and toxin-producing cells change across different life stages.
Main Methods:
- Transcriptomic analysis
- Biochemical assays
- Transgenic tools
- Behavioral assays with prey and predators
Main Results:
- Venom composition and the array of toxin-producing cells undergo significant transformations during Nematostella vectensis development.
- Changes in venom appear correlated with distinct interspecific interactions across life stages, from planula to polyp.
- Behavioral experiments support the hypothesis that venom adaptations align with life-stage specific ecological roles.
Conclusions:
- The venom landscape in animals with complex life cycles is more extensive and dynamic than previously recognized.
- Developmental stage significantly influences venom expression and function in marine invertebrates like Nematostella vectensis.
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