Journal
PLANT PHYSIOLOGY
Volume 163, Issue 2, Pages 459-470Publisher
OXFORD UNIV PRESS INC
DOI: 10.1104/pp.113.220624
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Funding
- Agence Nationale de la Recherche [BLAN07-2_184783 PIANO]
- La Region de Bourgogne (PARI AGRALE 8 project)
- U.S. National Science Foundation [1146827]
- Division Of Integrative Organismal Systems
- Direct For Biological Sciences [1146827] Funding Source: National Science Foundation
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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.
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