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Cell-to-cell communication via plasmodesmata in vascular plants

Sevilem, Iris, Miyashima, Shunsuke and Helariutta, Ykä 2013. Cell-to-cell communication via plasmodesmata in vascular plants. Cell Adhesion & Migration 7 (1) , pp. 27-32. 10.4161/cam.22126

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In plant development, cell-to-cell signaling is mediated by mobile signals, including transcription factors and small RNA molecules. This communication is essential for growth and patterning. Short-range movement of signals occurs in the extracellular space via the apoplastic pathway or directly from cell-to-cell via the symplastic pathway. Symplastic transport is mediated by plant specific structures called plasmodesmata, which are plasma membrane-lined pores that traverse the cell walls of adjacent cells thus connecting their cytoplasms. However, a thorough understanding of molecules moving via plasmodesmata and regulatory networks relying on symplastic signaling is lacking. Traffic via plasmodesmata is highly regulated, and callose turnover is known to be one mechanism. In Arabidopsis, plasmodesmata apertures can be regulated in a spatially and temporally specific manner with the icals3m, an inducible vector system expressing the mutated CalS3 gene encoding a plasmodesmata localized callose synthase that increases callose deposition at plasmodesmata. We discuss strategies to use the icals3m system for global analyses on symplastic signaling in plants.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QK Botany
Uncontrolled Keywords: symplastic communication, mobile signal, Arabidopsis, root development, plasmodesmata, callose
Publisher: Landes Bioscience
ISSN: 1933-6918
Last Modified: 19 Mar 2016 23:36

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