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Updated: May 12, 2026

Identification of Post-translational Modifications of Plant Protein Complexes
Published on: February 22, 2014
[Nitric oxide is a major player in plant immune system]
Emmanuel Koen1, Olivier Lamotte, Angélique Besson-Bard
1UMR 1347 Agroécologie AgroSup Dijon/Inra/université de Bourgogne, pôle mécanisme et gestion des interactions plantes-microorganismes, ERL CNRS 6300, 7, rue Sully, 21000 Dijon, France - AgroParisTech, ENGREF, 19, avenue du Maine, 75015 Paris, France.
Abstract:
In animals, nitric oxide (NO) functions as a ubiquitous signaling molecule involved in diverse physiological processes such as immunity. Recent studies provided evidence that plants challenged by pathogenic microorganisms also produce NO. The emerging picture is that NO functions as a signal in plant immunity and executes part of its effects through posttranslational protein modifications. Notably, the characterization of S-nitrosylated proteins provided insights into the molecular mechanisms by which NO exerts its activities. Based on these findings, it appears that NO is involved in both the activation and the negative control of the signaling pathways related to plant immunity.
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