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Related Concept Videos

Plasmodesmata02:32

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Sphingolipids at Plasmodesmata: Structural Components and Functional Modulators.

Yingying Zhang1, Shuang Wang2, Lu Wang2

  • 1Shanghai Key Laboratory of Protected Horticulture Technology, The Protected Horticulture Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China.

International Journal of Molecular Sciences
|May 28, 2022
PubMed
Summary

Sphingolipids are crucial for plant cell communication via plasmodesmata (PD). They organize unique membrane microdomains, control permeability, and regulate signaling, impacting plant development and defense.

Keywords:
lipidomicsmicrodomainplasma membraneplasmodesmatasignalingsphingolipid

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Area of Science:

  • Plant Biology
  • Cell Biology
  • Molecular Biology

Background:

  • Plasmodesmata (PD) are plant-specific channels facilitating intercellular communication vital for development and defense.
  • PD structure involves the plasma membrane (PM), endoplasmic reticulum (ER)-derived desmotubule, and linking elements.
  • The PD-PM features unique microdomains enriched in sphingolipids, sterols, and proteins, influencing PD function.

Purpose of the Study:

  • To review the multifaceted roles of sphingolipids in plasmodesmata.
  • To elucidate how sphingolipids impact PD organization, permeability, and signaling.
  • To differentiate sphingolipid and sterol functions and identify future research directions.

Main Methods:

  • Literature review focusing on lipidomics and proteomics studies of PD.
  • Analysis of research on sphingolipid involvement in membrane microdomain formation.
  • Synthesis of findings related to PD architecture, callose deposition, and signaling.

Main Results:

  • Sphingolipids are key components of PD microdomains, influencing their organization and stability.
  • These lipids regulate PD permeability and are involved in callose deposition.
  • Sphingolipids play a role in signal transduction pathways mediated by PD.

Conclusions:

  • Sphingolipids are essential regulators of plasmodesmata function, impacting various cellular processes.
  • Understanding sphingolipid roles provides insights into plant development and defense mechanisms.
  • Further research is needed to fully elucidate the structure-function relationships of PD components.