Light has a specific role in modulating Arabidopsis gene expression at low temperature.

ABSTRACT:

Background

Light and temperature are the key abiotic modulators of plant gene expression. In the present work the effect of light under low temperature treatment was analyzed by using microarrays. Specific attention was paid to the up and down regulated genes by using promoter analysis. This approach revealed putative regulatory networks of transcription factors behind the induction or repression of the genes.

Results

Induction of a few oxidative stress related genes occurred only under the Cold/Light treatment including genes encoding iron superoxide dismutase (FeSOD) and glutathione-dependent hydrogen peroxide peroxidases (GPX). The ascorbate dependent water-water cycle genes showed no response to Cold/Light or Cold/Dark treatments. Cold/Light specifically induced genes en

SUBMITTER: Soitamo AJ 

PROVIDER: S-EPMC2253524 | biostudies-literature | 2008 Jan

REPOSITORIES: biostudies-literature