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Nitric oxide controls constitutive freezing tolerance in Arabidopsis by attenuating the levels of osmoprotectants, stress-related hormones and Anthocyanins

AuthorsCosta-Broseta, Álvaro; Perea-Resa, Carlos; Castillo, Mari-Cruz; Ruiz, María Fernanda ; Salinas, Julio ; Leon, Jose
Plant sciences
Issue Date18-Jun-2018
PublisherNature Publishing Group
CitationScientific reports 8 (1) 9268 (2018)
AbstractPlant tolerance to freezing temperatures is governed by endogenous constitutive components and environmental inducing factors. Nitric oxide (NO) is one of the endogenous components that participate in freezing tolerance regulation. A combined metabolomic and transcriptomic characterization of NO-deficient nia1,2noa1-2 mutant plants suggests that NO acts attenuating the production and accumulation of osmoprotective and regulatory metabolites, such as sugars and polyamines, stress-related hormones, such as ABA and jasmonates, and antioxidants, such as anthocyanins and flavonoids. Accordingly, NO-deficient plants are constitutively more freezing tolerant than wild type plants.
Description10 p.-6 fig.
Publisher version (URL)https://doi.org/10.1038/s41598-018-27668-8
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