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Shaping intercellular channels of plasmodesmata: the structure-to-function missing link.

William J Nicolas1, Magali S Grison1, Emmanuelle M Bayer1

  • 1Laboratoire de Biogénèse Membranaire, UMR 5200 CNRS, University of Bordeaux, France.

Journal of Experimental Botany
|October 10, 2017
PubMed
Summary
This summary is machine-generated.

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Plasmodesmata (PD) are vital plant cell communication channels. This review explores their structure, function, and potential role as specialized membrane microdomains, drawing parallels with membrane contact sites.

Area of Science:

  • Plant biology
  • Cell biology
  • Molecular biology

Background:

  • Plasmodesmata (PD) are crucial intercellular channels in plants, facilitating cell-to-cell transport of molecules like proteins, RNA, and hormones.
  • They are essential for cell communication, synchronization, and play a key role in plant defense and viral spread.
  • The intricate membranous structure of PD, involving the endoplasmic reticulum and plasma membrane, remains incompletely understood.

Purpose of the Study:

  • To reassess the function of plasmodesmata (PD) components.
  • To investigate the role of membrane lipid composition and biophysics in PD function.
  • To explore the emerging concept of PD as specialized membrane microdomains.

Main Methods:

  • Review of existing phylogenetic data.
Keywords:
Plasmodesmatalipidmembrane contact sitesplant cell-to-cell communication

Related Experiment Videos

  • Analysis of recent research on plasmodesmata structure and function.
  • Comparative analysis with membrane contact sites.

    • Main Results:

    • Plasmodesmata (PD) share functional similarities with membrane contact sites.
    • Plasmodesmal membranes may represent specialized microdomains with unique lipid compositions.
    • Phylogenetic data can inform the functional understanding of PD elements.

    Conclusions:

    • A new perspective views plasmodesmata (PD) as membrane microdomains, akin to membrane contact sites.
    • Understanding PD membrane biophysics and lipid composition is critical for elucidating their specialized functions.
    • Further research is needed to fully grasp the implications of PD as microdomains.