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ROS in Retrograde Signalling from the Chloroplast to the Nucleus

  • Philip M. MullineauxEmail author
Chapter
Part of the Signaling and Communication in Plants book series (SIGCOMM)

Abstract

This chapter reviews the roles of reactive oxygen species (ROS), such as singlet oxygen and hydrogen peroxide, in initiating and transducing retrograde signals from the chloroplast to the nucleus in response to environmental cues. Recent research is extensively cited that show ROS-directed retrograde signalling triggering both programmed cell death and acclimation to changed conditions. The implications for signal transduction are discussed in which ROS, by virtue of their reactivity or due to cellular antioxidant systems, are contained within chloroplasts, or under more extreme conditions, diffuse out to promote oxidative damage in other subcellular compartments. Finally, a discussion on the imperatives that will drive future ROS-related research in plants is provided that sets out why, and perhaps how, such research must be translated into crop improvement strategies for the benefit of global agriculture.

Keywords

Reactive Oxygen Species Retrograde Signalling Systemic Acquire Resistance Nuclear Gene Expression Protein Pentatricopeptide Repeat 
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.

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© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Department of Biological SciencesUniversity of EssexColchesterUnited Kingdom

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