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Hydrogen Peroxide-Responsive Genes in Stress Acclimation and Cell Death

  • Sandy Vanderauwera
  • Frank A. Hoeberichts
  • Frank Van BreusegemEmail author
Chapter
Part of the Signaling and Communication in Plants book series (SIGCOMM)

Abstract

Reactive oxygen species (ROS) are key signalling molecules that regulate growth and development and coordinate responses to biotic and abiotic stresses. ROS homeostasis is controlled through a complex network of ROS production and scavenging enzymes. Recently, the first genes involved in ROS perception and signal transduction have been identified and, currently, we are facing the challenge to uncover the other players within the ROS regulatory gene network. The specificity of ensuing cellular responses depends on the type of ROS and their subcellular production sites. Various experimental systems, including catalase-deficient plants, in combination with genome-wide expression studies demonstrated that increased hydrogen peroxide (H2O2) levels significantly affect the transcriptome of plants and are capable of launching both defence responses and cell death events. A comparative analysis between H2O2-induced transcriptional changes and those provoked by different environmental stresses, not only consolidated a prominent role for H2O2 signalling in stress acclimation, but also allowed the identification of new candidate regulatory genes within the plant’s abiotic stress response.

Keywords

Reactive Oxygen Species Reactive Oxygen Species Production Tiling Array Reactive Oxygen Species Signal Increase Reactive Oxygen Species Level 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The authors thank Dr Martine De Cock for help in preparing the manuscript. This work was supported by a grant from the Research Fund of the Ghent University (Geconcerteerde Onderzoeksacties grant no. 12051403). S.V. is a Postdoctoral Fellow of the Research Foundation-Flanders.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Sandy Vanderauwera
    • 1
  • Frank A. Hoeberichts
    • 1
  • Frank Van Breusegem
    • 1
    Email author
  1. 1.Department of Plant Systems Biology, VIB, and Department of Plant Biotechnology and GeneticsGhent UniversityGentBelgium

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