Work

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

Year: 2000

Type: preprint

Abstract: 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.

Source: Genes & Development

DOI: 10.1101/gad.189200

Authors: Ari Pekka Mähönen, Martin Bonke, Leila Kauppinen, Marjukka Riikonen, Philip N. Benfey, Ykä Helariutta

Institutions: University of Helsinki, New York University

Language: English

Topic: Plant Molecular Biology Research

Subfield: Plant Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

Open Access status: bronze

Funders: Academy of Finland, Tekes, National Institutes of Health, National Institute of General Medical Sciences

Award: Molecular Genetic Analysis of Root Morphogenesis