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Mol Plant. 2010 Jul;3(4):706-18. doi: 10.1093/mp/ssq024. Epub 2010 Jun 3.

Cross-talk between ROS and calcium in regulation of nuclear activities.

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Université de Toulouse, UPS, UMR 5546, Surfaces Cellulaires et Signalisation chez les Végétaux, BP 42617, F-31326 Castanet-Tolosan, France.


Calcium and Reactive Oxygen Species (ROS) are acknowledged as crucial second messengers involved in the response to various biotic and abiotic stresses. However, it is still not clear how these two compounds can play a role in different signaling pathways leading the plant to a variety of processes such as root development or defense against pathogens. Recently, it has been shown that the concept of calcium and ROS signatures, initially discovered in the cytoplasm, can also be extended to the nucleus of plant cells. In addition, it has been clearly proved that both ROS and calcium signals are intimately interconnected. How this cross-talk can finally modulate the translocation and/or the activity of nuclear proteins leading to the control of specific genes expression is the main focus of this review. We will especially focus on how calcium and ROS interact at the molecular level to modify their targets.

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