4.8 Article

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

Journal

NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -

Publisher

NATURE PORTFOLIO
DOI: 10.1038/s41467-022-29110-0

Keywords

-

Funding

  1. Societe Academique Vaudoise
  2. SNF [310030B_176399, 31003A_179159, PCEGP3_187007]
  3. Sandoz Family Monique De Meuron philanthropic foundation's program for academic promotion
  4. Swiss National Science Foundation (SNF) [PCEGP3_187007, 310030B_176399, 31003A_179159] Funding Source: Swiss National Science Foundation (SNF)

Ask authors/readers for more resources

Suberin is a plant biopolymer found in protective tissues. Electron microscopy revealed the accumulation of extracellular vesiculo-tubular structures (EVs) in suberizing cells, suggesting a developmental role for extracellular vesicles in the formation of a major cell wall polymer.
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.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available