Light regulation of succinate dehydrogenase expression in Arabidopsis thaliana leaves

Light regulation of succinate dehydrogenase expression in Arabidopsis thaliana leaves A potential mechanism of light regulation of the succinate dehydrogenase (SDH) expression in Arabidopsis thaliana leaves was studied. As was shown by dot-hybridization and polymerase chain reaction in real time (RT-PCR), the SDH mRNA level in wild-type Arabidopsis thaliana plants changed depending on light conditions. The level of SDH mRNA in darkness was higher than in the light. The analysis of Arabidopsis thaliana plants carrying the mutant genes of phytochromes A and B showed that phytochrome A was involved in the regulation of the SDH enzyme activity. The active form of phytochrome A suppressed the SDHI-2 gene expression, and that resulted in decreasing activity of SDH. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Light regulation of succinate dehydrogenase expression in Arabidopsis thaliana leaves

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Physiology; Plant Sciences
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443707030107
Publisher site
See Article on Publisher Site

Abstract

A potential mechanism of light regulation of the succinate dehydrogenase (SDH) expression in Arabidopsis thaliana leaves was studied. As was shown by dot-hybridization and polymerase chain reaction in real time (RT-PCR), the SDH mRNA level in wild-type Arabidopsis thaliana plants changed depending on light conditions. The level of SDH mRNA in darkness was higher than in the light. The analysis of Arabidopsis thaliana plants carrying the mutant genes of phytochromes A and B showed that phytochrome A was involved in the regulation of the SDH enzyme activity. The active form of phytochrome A suppressed the SDHI-2 gene expression, and that resulted in decreasing activity of SDH.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: May 25, 2007

References

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