Analysis of vascular development in the hydra sterol biosynthetic mutants of Arabidopsis.

ABSTRACT:

Background

The control of vascular tissue development in plants is influenced by diverse hormonal signals, but their interactions during this process are not well understood. Wild-type sterol profiles are essential for growth, tissue patterning and signalling processes in plant development, and are required for regulated vascular patterning.

Methodology/principal findings

Here we investigate the roles of sterols in vascular tissue development, through an analysis of the Arabidopsis mutants hydra1 and fackel/hydra2, which are defective in the enzymes sterol isomerase and sterol C-14 reductase respectively. We show that defective vascular patterning in the shoot is associated with ectopic cell divisions. Expression of the auxin-regulated AtHB8 homeobox gene is disrupted in mut

SUBMITTER: Pullen M 

PROVIDER: S-EPMC2923191 | biostudies-literature | 2010 Aug

REPOSITORIES: biostudies-literature