TY - JOUR AU - AB - Downloaded from genesdev.cshlp.org on October 23, 2021 - Published by Cold Spring Harbor Laboratory Press REVIEW Signaling in plants by intercellular RNA and protein movement 1 1,2,3 1 Xuelin Wu, Detlef Weigel, and Philip A. Wigge 1 2 Plant Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, California 92037, USA; Department of Molecular Biology, Max Planck Institute for Developmental Biology, 72076 Tübingen, Germany Plants and animals have had about 1.6 billion years—the brane-lined pores, with an exterior membrane contrib- time that has passed since they diverged from their last uted by the plasma membranes of the two cells con- unicellular ancestor—to evolve different mechanisms nected by the PD, and a central desmotubule, derived for solving unique problems of development and inter- from endoplasmic reticulum that is also contiguous be- cellular signaling. As an example, plant cells are sepa- tween the two cells (Ding 1998). Typically, PD have a rated from each other by a substantial extracellular ma- small diameter of ∼40 nm (Robards and Lucas 1990; van trix, the cell wall. Although the cell wall is not imper- Bel and van Kesteren 1999), with the central desmotu- vious, it is likely to hinder cell-to-cell communication. bule being TI - Signaling in plants by intercellular RNA and protein movement JF - Genes & Development DO - 10.1101/gad.952002 DA - 2002-01-15 UR - https://www.deepdyve.com/lp/unpaywall/signaling-in-plants-by-intercellular-rna-and-protein-movement-6KYprbO5QQ DP - DeepDyve ER -