ArticleScientific reports2020
Seed ejection mechanism in an Oxalis species.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Harvesting environmental circadian oscillations for energy autonomy of soft robots.Nature communications · 2026Article
- Can Predation Pressure Help Explain the Curious Evolution of Ballistic Seed Dispersal?Ecology and evolution · 2025Article
- Uncovering the mechanical secrets of the squirting cucumber.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Elastic pinch biomechanisms can yield consistent launch speeds regardless of projectile mass.Journal of the Royal Society, Interface · 2023Article
- The cracking of Scots pine (Frontiers in plant science · 2022Article
- A Tunable, Simplified Model for Biological Latch Mediated Spring Actuated Systems.Integrative organismal biology (Oxford, England) · 2022Article
- High-speed video and plant ultrastructure define mechanisms of gametophyte dispersal.Applications in plant sciencesArticle
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Authors and funding
3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
With millions of years' evolution, plants and fungi have developed a variety of ballistic dispersal structures for seeds or spores. One typical example is the catapult of an Oxalis sp., which can realize a consecutive seed ejection by triggering only one seed. If the protrusion on an aril, a specialized outgrowth covering a seed, is disturbed, cracks would occur and cause the opening of the aril. Subsequently, the whole aril snaps and transforms its stored strain energy to eject the inside seed with an optimal launching angle. Once the first seed is triggered, its curly aril will contact the next seed's protrusion and induce its firing. This chain effect will further trigger the remaining seeds in turns, within 0.1 s. Inspired by this phenomenon, we invented a bionic ejection device to launch projectiles with high efficiency. This exploration is promising for a number of applications, such as drug delivery and oil displacement.
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