ArticleJournal of experimental botany2021
A belt for the cell: cellulosic wall thickenings and their role in morphogenesis of the 3D puzzle cells in walnut shells.
Article in Journal of experimental botany, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 21 citations in OpenAlex.
- Genome-wide identification, transcriptome dynamics, and expression regulation of the key lignin biosynthesis gene families PAL and CAD in black walnut shell.BMC plant biology · 2025Article
- Zygospore formation in Zygnematophyceae predates several land plant traits.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- 'Sorrento' and 'Tulare' Walnut Cultivars: Morphological Traits and Phytochemical Enhancement of Their Shell Waste.Molecules (Basel, Switzerland) · 2024Article
- Zygospore development ofFrontiers in plant science · 2024Article
- Hydrolyzable tannins are incorporated into the endocarp during sclerification of the water caltrop Trapa natans.Plant physiology · 2023Article
- Fracture Resistance Biomechanisms of Walnut Shell with High-Strength and Toughening.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
- Ginkgo seed shell provides a unique model for bioinspired design.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Genome-wide association analysis of 101 accessions dissects the genetic basis of shell thickness for genetic improvement in Persian walnut (Juglans regia L.).BMC plant biology · 2022Article
- The walnut shell network: 3D visualisation of symplastic and apoplastic transport routes in sclerenchyma tissue.Planta · 2022Article
- Elastic and collapsible: current understanding of cell walls in succulent plants.Journal of experimental botany · 2022Review
- Raman imaging of Micrasterias: new insights into shape formation.Protoplasma · 2021Article
- A tough 3D puzzle in the walnut shell.Journal of experimental botany · 2021Article
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Walnut (Juglans regia) kernels are protected by a tough shell consisting of polylobate sclereids that interlock into a 3D puzzle. The shape transformations from isodiametric to lobed cells is well documented for 2D pavement cells, but not for 3D puzzle sclereids. Here, we study the morphogenesis of these cells by using a combination of different imaging techniques. Serial face-microtomy enabled us to reconstruct tissue growth of whole walnut fruits in 3D, and serial block face-scanning electron microscopy exposed cell shapes and their transformation in 3D during shell tissue development. In combination with Raman and fluorescence microscopy, we revealed multiple loops of cellulosic thickenings in cell walls, acting as stiff restrictions during cell growth and leading to the lobed cell shape. Our findings contribute to a better understanding of the 3D shape transformation of polylobate sclereids and the role of pectin and cellulose within this process.
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