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Title

Nitric oxide in plant-fungal interactions

AuthorsMartínez Medina, Ainhoa; Pescador Azofra, Leyre; Terrón-Camero, Laura Carmen; Pozo Jiménez, María José; Romero-Puertas, María C.
KeywordsMycorrhiza
Disease
Biotrophs
Fungal pathogens
Fungal mutualists
Necrotrophs
Nitric oxide
Plant immunity
Symbiosis.
Issue Date2019
PublisherOxford University Press
CitationJournal of Experimental Botany 70: 4489- 4503 (2019)
AbstractWhilst many interactions with fungi are detrimental for plants, others are beneficial and result in improved growth and stress tolerance. Thus, plants have evolved sophisticated mechanisms to restrict pathogenic interactions while promoting mutualistic relationships. Numerous studies have demonstrated the importance of nitric oxide (NO) in the regulation of plant defence against fungal pathogens. NO triggers a reprograming of defence-related gene expression, the production of secondary metabolites with antimicrobial properties, and the hypersensitive response. More recent studies have shown a regulatory role of NO during the establishment of plant-fungal mutualistic associations from the early stages of the interaction. Indeed, NO has been recently shown to be produced by the plant after the recognition of root fungal symbionts, and to be required for the optimal control of mycorrhizal symbiosis. Although studies dealing with the function of NO in plant-fungal mutualistic associations are still scarce, experimental data indicate that different regulation patterns and functions for NO exist between plant interactions with pathogenic and mutualistic fungi. Here, we review recent progress in determining the functions of NO in plant-fungal interactions, and try to identify common and differential patterns related to pathogenic and mutualistic associations, and their impacts on plant health.
Publisher version (URL)https://doi.org/10.1093/jxb/erz289
URIhttp://hdl.handle.net/10261/196112
DOI10.1093/jxb/erz289
Identifiersdoi: 10.1093/jxb/erz289
issn: 1460-2431
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