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Plant Cell. 2011 Mar;23(3):855-64. doi: 10.1105/tpc.111.082982. Epub 2011 Mar 8.

Intercellular communication during plant development.

Author information

  • 1Department of Biology and Institute for Genome Science and Policy Center for Systems Biology, Duke University, Durham, North Carolina 27708, USA.

Abstract

Multicellular organisms depend on cell-to-cell communication to coordinate both development and environmental responses across diverse cell types. Intercellular signaling is particularly critical in plants because development is primarily postembryonic and continuous over a plant's life span. Additionally, development is impacted by restrictions imposed by a sessile lifestyle and limitations on relative cell positions. Many non-cell-autonomous signaling mechanisms are known to function in plant development, including those involving receptor kinases, small peptides, and mobile transcription factors. In this review, we focus on recent findings that highlight novel mechanisms in intercellular signaling during development. New details of small RNA movement, including microRNA movement, are discussed, as well as protein movement and distribution of reactive oxygen species (ROS) in ROS signaling. Finally, a novel temporal mechanism for lateral root positioning and the implications for intercellular signaling are considered.

PMID:
21386031
[PubMed - indexed for MEDLINE]
PMCID:
PMC3082268
Free PMC Article

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