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Article Dans Une Revue Plant Physiology Année : 2013

There's More to the Picture Than Meets the Eye: Nitric Oxide Cross Talk with Ca2+ Signaling

Résumé

Calcium and nitric oxide (NO) are two important biological messengers. Increasing evidence indicates that Ca2+ and NO work together in mediating responses to pathogenic microorganisms and microbe-associated molecular patterns. Ca2+ fluxes were recognized to account for NO production, whereas evidence gathered from a number of studies highlights that NO is one of the key messengers mediating Ca2+ signaling. Here, we present a concise description of the current understanding of the molecular mechanisms underlying the cross talk between Ca2+ and NO in plant cells exposed to biotic stress. Particular attention will be given to the involvement of cyclic nucleotide-gated ion channels and Ca2+ sensors. Notably, we provide new evidence that calmodulin might be regulated at the posttranslational level by NO through S-nitrosylation. Furthermore, we report original transcriptomic data showing that NO produced in response to oligogalacturonide regulates the expression of genes related to Ca2+ signaling. Deeper insight into the molecules involved in the interplay between Ca2+ and NO not only permits a better characterization of the Ca2+ signaling system but also allows us to further understand how plants respond to pathogen attack.

Dates et versions

hal-01696278 , version 1 (30-01-2018)

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Sylvain Jeandroz, Olivier Lamotte, Jeremy Astier, Sumaira Rasul, Pauline Trapet, et al.. There's More to the Picture Than Meets the Eye: Nitric Oxide Cross Talk with Ca2+ Signaling. Plant Physiology, 2013, 163 (2), pp.459--470. ⟨10.1104/pp.113.220624⟩. ⟨hal-01696278⟩
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