ArticleFrontiers in plant science2015
Mechanically, the Shoot Apical Meristem of Arabidopsis Behaves like a Shell Inflated by a Pressure of About 1 MPa.
Article in Frontiers in plant science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- Wilhelm Hofmeister revisited: Meristematic surfaces channel information flows in organogenesis.Quantitative plant biology · 2026Review
- Mechanical interactions between tissue layers underlie plant morphogenesis.Nature plants · 2025Article
- Regulation of cytoskeleton dynamics and its interplay with force in plant cells.Biophysics reviews · 2024Review
- Mechanical forces exerted on floral primordia with a novel experimental system modify floral development in Arabidopsis thaliana.Journal of plant research · 2024Article
- Hidden functional complexity in the flora of an early land ecosystem.The New phytologist · 2024Article
- Quantifying turgor pressure in budding and fission yeasts based upon osmotic properties.Molecular biology of the cell · 2023Article
- Quantifying turgor pressure in budding and fission yeasts based upon osmotic properties.bioRxiv : the preprint server for biology · 2023Article
- Role of turgor-pressure induced boundary tension in the maintenance of the shoot apical meristem ofJournal of the Royal Society, Interface · 2023Article
- A framework for improving wheat spike development and yield based on the master regulatory TOR and SnRK gene systems.Journal of experimental botany · 2023Article
- The CLAVATA3/ESR-related peptide family in the biofuel crop pennycress.Frontiers in plant science · 2023Article
- Topological properties accurately predict cell division events and organization of shoot apical meristem in Arabidopsis thaliana.Development (Cambridge, England) · 2022Article
- Mechanical Forces in Floral Development.Plants (Basel, Switzerland) · 2022Review
- Plant cell mechanobiology: Greater than the sum of its parts.The Plant cell · 2022Review
- The root meristem is shaped by brassinosteroid control of cell geometry.Nature plants · 2021Article
- Between Stress and Response: Function and Localization of Mechanosensitive CaInternational journal of molecular sciences · 2021Review
- Feedback from Tissue Mechanics Self-Organizes Efficient Outgrowth of Plant Organ.Biophysical journal · 2019Article
- Are microtubules tension sensors?Nature communications · 2019Review
- Review
- Regulation of plant cell wall stiffness by mechanical stress: a mesoscale physical model.Journal of mathematical biology · 2019Article
- Feeling Stressed or Strained? A Biophysical Model for Cell Wall Mechanosensing in Plants.Frontiers in plant science · 2019Article
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4 authors.
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No grant is acknowledged in the PubMed record.
Abstract
In plants, the shoot apical meristem contains the stem cells and is responsible for the generation of all aerial organs. Mechanistically, organogenesis is associated with an auxin-dependent local softening of the epidermis. This has been proposed to be sufficient to trigger outgrowth, because the epidermis is thought to be under tension and stiffer than internal tissues in all the aerial part of the plant. However, this has not been directly demonstrated in the shoot apical meristem. Here we tested this hypothesis in Arabidopsis using indentation methods and modeling. We considered two possible scenarios: either the epidermis does not have unique properties and the meristem behaves as a homogeneous linearly-elastic tissue, or the epidermis is under tension and the meristem exhibits the response of a shell under pressure. Large indentation depths measurements with a large tip (~size of the meristem) were consistent with a shell-like behavior. This also allowed us to deduce a value of turgor pressure, estimated at 0.82±0.16 MPa. Indentation with atomic force microscopy provided local measurements of pressure in the epidermis, further confirming the range of values obtained from large deformations. Altogether, our data demonstrate that the Arabidopsis shoot apical meristem behaves like a shell under a MPa range pressure and support a key role for the epidermis in shaping the shoot apex.
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