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Extracellular vesiculo-tubular structures associated with suberin deposition in plant cell walls

Author

Listed:
  • Damien De Bellis

    (University of Lausanne
    University of Lausanne)

  • Lothar Kalmbach

    (University of Lausanne
    Sainsbury Laboratory University Cambridge)

  • Peter Marhavy

    (University of Lausanne
    Department of Forest Genetics and Plant Physiology)

  • Jean Daraspe

    (University of Lausanne)

  • Niko Geldner

    (University of Lausanne)

  • Marie Barberon

    (University of Lausanne
    University of Geneva)

Abstract

Suberin is a fundamental plant biopolymer, found in protective tissues, such as seed coats, exodermis and endodermis of roots. Suberin is deposited in most suberizing cells in the form of lamellae just outside of the plasma membrane, below the primary cell wall. How monomeric suberin precursors, thought to be synthesized at the endoplasmic reticulum, are transported outside of the cell, for polymerization into suberin lamellae has remained obscure. Using electron-microscopy, we observed large numbers of extracellular vesiculo-tubular structures (EVs) to accumulate specifically in suberizing cells, in both chemically and cryo-fixed samples. EV presence correlates perfectly with root suberization and we could block suberin deposition and vesicle accumulation by affecting early, as well as late steps in the secretory pathway. Whereas many previous reports have described EVs in the context of biotic interactions, our results suggest a developmental role for extracellular vesicles in the formation of a major cell wall polymer.

Suggested Citation

  • Damien De Bellis & Lothar Kalmbach & Peter Marhavy & Jean Daraspe & Niko Geldner & Marie Barberon, 2022. "Extracellular vesiculo-tubular structures associated with suberin deposition in plant cell walls," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
  • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-29110-0
    DOI: 10.1038/s41467-022-29110-0
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    References listed on IDEAS

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    1. Tonni Grube Andersen & Sadaf Naseer & Robertas Ursache & Brecht Wybouw & Wouter Smet & Bert De Rybel & Joop E. M. Vermeer & Niko Geldner, 2018. "Diffusible repression of cytokinin signalling produces endodermal symmetry and passage cells," Nature, Nature, vol. 555(7697), pages 529-533, March.
    2. Tonni Grube Andersen & Sadaf Naseer & Robertas Ursache & Brecht Wybouw & Wouter Smet & Bert Rybel & Joop E. M. Vermeer & Niko Geldner, 2018. "Author Correction: Diffusible repression of cytokinin signalling produces endodermal symmetry and passage cells," Nature, Nature, vol. 559(7714), pages 9-9, July.
    3. Sandra Richter & Niko Geldner & Jarmo Schrader & Hanno Wolters & York-Dieter Stierhof & Gabino Rios & Csaba Koncz & David G. Robinson & Gerd Jürgens, 2007. "Functional diversification of closely related ARF-GEFs in protein secretion and recycling," Nature, Nature, vol. 448(7152), pages 488-492, July.
    4. Ooi-kock Teh & Ian Moore, 2007. "An ARF-GEF acting at the Golgi and in selective endocytosis in polarized plant cells," Nature, Nature, vol. 448(7152), pages 493-496, July.
    5. Daniele Roppolo & Bert De Rybel & Valérie Dénervaud Tendon & Alexandre Pfister & Julien Alassimone & Joop E. M. Vermeer & Misako Yamazaki & York-Dieter Stierhof & Tom Beeckman & Niko Geldner, 2011. "A novel protein family mediates Casparian strip formation in the endodermis," Nature, Nature, vol. 473(7347), pages 380-383, May.
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    Cited by:

    1. Inês Catarina Ramos Barbosa & Damien De Bellis & Isabelle Flückiger & Etienne Bellani & Mathieu Grangé-Guerment & Kian Hématy & Niko Geldner, 2023. "Directed growth and fusion of membrane-wall microdomains requires CASP-mediated inhibition and displacement of secretory foci," Nature Communications, Nature, vol. 14(1), pages 1-18, December.

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