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Emerging functions of nitric oxide in plant immunity

Abstract : The importance of nitric oxide (NO) in innate and adaptive immunity in mammals is well recognised. NO exerts antimicrobial properties against invaders but also displays immunoregulatory functions in which S-nitrosylation represents a signalling process of major importance. Over the last two decades, a growing body of evidence suggests that NO is also a major component of plant immunity. Our understanding of its role in plant defence has been enriched by the identification and functional analysis of S-nitrosylated proteins. The recent identification of new S-nitrosylated proteins including the chaperone-like enzyme cell division cycle 48 (CDC48), histone deacetylases (HDACs) and calmodulin (CaM) reveals that NO could act as a modulator of epigenetic changes and targeting of ubiquitinated proteins for degradation. These findings also expand our understanding of the mechanisms controlling NO synthesis and its crosstalks with calcium signalling in plant immunity
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Claire Rosnoblet, Stéphane Bourque, Valérie Nicolas-Frances, Olivier Lamotte, Angelique Besson-Bard, et al.. Emerging functions of nitric oxide in plant immunity. Gasotransmitters in plants - The rise of a new paradigm in cell signalling, Chapitre 11, Springer International Publishing Switzerland, 335 p., 2016, Signaling and Communication in Plants, ISBN 978-3-319-40711-1 ISSN série 1867-9048. ⟨10.1007/978-3-319-40713-5_11⟩. ⟨hal-01608778⟩

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