Curr Opin Plant Biol. 2010 Feb;13(1):59-65. Epub 2009 Sep 25.

Cell-to-cell communication in vascular morphogenesis.

Lehesranta SJ, Lichtenberger R, Helariutta Y.

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Department of Biological and Environmental Sciences/Institute of Biotechnology, University of Helsinki, P.O. Box 65, 00014 Helsinki, Finland.

Abstract

The plant vascular system consists of two conductive cell types, xylem and phloem, which are both produced by procambial cells. Recently, several novel regulatory mechanisms that control the specification of vascular patterning and differentiation have been uncovered. The non-cell-autonomous TDIF/CLE signalling mediates phloem-xylem cross-talk and cambial maintenance; a flowering-related long-distance signal governs secondary development; and novel genetic players such as LHW regulate vascular morphogenesis. A future challenge is to conflate data on the various genetic, hormonal and other factors to understand the networks underlying vascular tissue formation.

PMID:: 19783199; [PubMed - indexed for MEDLINE]

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