ArticleBiophysical journal2022
Mechanics of inactive swelling and bursting of porate pollen grains.
Article in Biophysical journal, 2022. 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.
- Climate adaptation and functional constraints drive pollen evolution in Apiales.The New phytologist · 2026Article
- Interpretable machine learning classification of cedar and cypress pollen on routine Durham slides for environmental exposure assessment.Frontiers in allergy · 2026Article
- Electrostatic treatment enhances pollen viability and improves fruit quality in 'Xuxiang' kiwifruit.Frontiers in plant science · 2026Article
- Formation of Drosophila germ cells requires spatial patterning of phospholipids.Current biology : CB · 2025Article
- A Simple and User-Friendly Method for High-Quality Preparation of Pollen Grains for Scanning Electron Microscopy (SEM).Plants (Basel, Switzerland) · 2024Article
- Enrichment of Water Bodies with Phenolic Compounds Released fromPlants (Basel, Switzerland) · 2023Article
- Patterns of Phenolic Compounds inPlants (Basel, Switzerland) · 2023Article
- Small extracellular vesicles released from germinated kiwi pollen (pollensomes) present characteristics similar to mammalian exosomes and carry a plant homolog of ALIX.Frontiers in plant science · 2023Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The structure of pollen grains, which is typically characterized by soft apertures in an otherwise stiff exine shell, guides their response to changes in the humidity of the environment. These changes can lead to desiccation of the grain and its infolding but also to excessive swelling of the grain and even its bursting. Here we use an elastic model to explore the mechanics of pollen grain swelling and the role of soft, circular apertures (pores) in this process. Small, circular apertures typically occur in airborne and allergenic pollen grains so that the bursting of such grains is important in the context of human health. We identify and quantify a mechanical weakness of the pores, which are prone to rapid inflation when the grain swells to a critical extent. The inflation occurs as a sudden transition and may induce bursting of the grain and release of its content. This process crucially depends on the size of the pores and their softness. Our results provide insight into the inactive part of the mechanical response of pollen grains to hydration when they land on a stigma as well as bursting of airborne pollen grains during changes in air humidity.
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