A novel two-component hybrid molecule regulates vascular morphogenesis of the Arabidopsis root.

Journal Article (Journal Article)

The developmental ontogeny of the vascular system (consisting of xylem, phloem and [pro]cambium) is poorly understood despite its central role in plant physiology. We show that in the Arabidopsis root meristem, xylem cell lineages are specified early, whereas phloem and procambium are established through a set of asymmetric cell divisions. These divisions require the WOODEN LEG (WOL) gene. The WOL gene encodes a novel two-component signal transducer with an unusual tandem arrangement of two receiver domains. It is expressed specifically in the vasculature from the early stages of embryogenesis on, consistent with a role as a sensor for vascular morphogenesis.

Full Text

Duke Authors

Cited Authors

  • Mähönen, AP; Bonke, M; Kauppinen, L; Riikonen, M; Benfey, PN; Helariutta, Y

Published Date

  • December 2000

Published In

Volume / Issue

  • 14 / 23

Start / End Page

  • 2938 - 2943

PubMed ID

  • 11114883

Pubmed Central ID

  • PMC317089

Electronic International Standard Serial Number (EISSN)

  • 1549-5477

International Standard Serial Number (ISSN)

  • 0890-9369

Digital Object Identifier (DOI)

  • 10.1101/gad.189200


  • eng