Auxin-transport-dependent leaf vein formationThis paper is one of a selection published in a Special Issue comprising papers presented at the 50th Annual Meeting of the Canadian Society of Plant Physiologists (CSPP) held at the University of Ottawa, Ontario, in June 2008

The formation of vein patterns in leaves has captivated biologists, mathematicians, and philosophers. In leaf development, files of vein-forming procambial cells emerge from within a seemingly homogeneous subepidermal tissue through the selection of anatomically inconspicuous preprocambial cells. Al...

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Bibliographic Details
Published inBotany Vol. 87; no. 7; pp. 678 - 684
Main Authors Donner, Tyler J, Scarpella, Enrico
Format Journal Article
LanguageEnglish
Published 01.07.2009
Subjects
Arabidopsis
développement foliaire
formation du patron vasculaire
leaf development
polar auxin transport
procambium
transport polaire de l'auxine
vascular patterning
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Summary:The formation of vein patterns in leaves has captivated biologists, mathematicians, and philosophers. In leaf development, files of vein-forming procambial cells emerge from within a seemingly homogeneous subepidermal tissue through the selection of anatomically inconspicuous preprocambial cells. Although the molecular details underlying the orderly formation of veins in the leaf remain elusive, gradually restricted transport paths of the plant signaling molecule auxin have long been implicated in defining sites of vein differentiation. Several recent advances converge to more precisely define the role of auxin flow at successive stages of vascular development. The picture that emerges is that of vein formation as a self-organizing, reiterative, auxin-transport-dependent process.
ISSN:1916-2790
1916-2804
DOI:10.1139/B09-002