Chapter 25

Nitric Oxide (NO)-Mediated Plant Stress Signaling

L.V. Dubovskaya

L.V. Dubovskaya

Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus, Minsk, Belarus

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Y.S. Bakakina

Y.S. Bakakina

Institute of Biophysics and Cell Engineering of the National Academy of Sciences of Belarus, Minsk, Belarus

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First published: 05 July 2019
Citations: 2

Summary

Nitric oxide (NO) as a signaling molecule involved in various physiological processes and abiotic/biotic stress responses in plants. Nitric oxide (NO) can realize its biological functions directly by specific post-translational modification of proteins and ion-channel modulation or indirectly through the stimulation the activity of guanylyl cyclases (GCs) and activation of cyclic guanosine monophosphate (cGMP)-dependent cellular responses. Currently it established that interaction between NO and cGMP is of great importance in the regulation of physiological/stress reactions in plant cells. In this chapter the data concerning the molecular mechanisms of NO signaling in plants were summarized. In particular, the cGMP-dependent and the cGMP-independent NO signaling as well as interplays between NO, cyclic adenosine diphosphate-ribose (cADPR) and Ca2+in plant cells are discussed. The mechanism of NO action in response to abiotic/biotic stress signals and oxidative stress are also presented.

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