Plasmodesmata-associated proteins: Can we see the whole elephant?

Shoko Ueki, Vitaly Citovsky

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Encased in rigid cell walls, plant cells have evolved unique channel structures, plasmodesma (Pd), to create a pathway for molecular exchange between adjacent cells. Pd are basically cytoplasmic channels through the cell wall, which are lined by plasma membrane, and contain a modified strand of ER that spans them. These structures provide cytoplasmic and membrane continuity between connected cells, and that continuity is utilized for short and long distance molecular trafficking. Pd sphincters, made from constricting the Pd openings by outer layers of callose, together with the ER strand that occludes the Pd lumen set the upper limit for the size of molecules that can freely diffuse through the cytoplasmic component of the Pd channel. This limit, called the size exclusion limit (SEL), is a major factor that restricts macromolecular transport through Pd.

Original languageEnglish
Article numbere27899
JournalPlant Signaling and Behavior
Volume9
Issue numberFEB
DOIs
Publication statusPublished - 2014

Fingerprint

Plasmodesmata
plasmodesmata
Elephantidae
Proteins
proteins
Cell Wall
Cell Membrane
cell walls
sphincters
callose
Plant Cells
cells
plasma membrane

Keywords

  • Callose
  • Plasmodesmata
  • Reactive oxygen species
  • Size exclusion limit
  • Symplastic transport

ASJC Scopus subject areas

  • Plant Science
  • Medicine(all)

Cite this

Plasmodesmata-associated proteins : Can we see the whole elephant? / Ueki, Shoko; Citovsky, Vitaly.

In: Plant Signaling and Behavior, Vol. 9, No. FEB, e27899, 2014.

Research output: Contribution to journalArticle

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