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Título: | Nitric oxide deficiency decreases C-repeat binding factor-dependent and -independent induction of cold acclimation |
Autor: | Costa-Broseta, Álvaro; Perea-Resa, Carlos CSIC ORCID; Castillo, Mari-Cruz; Ruiz, María Fernanda CSIC ORCID ; Salinas, Julio CSIC ORCID ; León, José | Palabras clave: | ABA Anthocyanins Arabidopsis CBFs Cold acclimation Freezing tolerance Nitric oxide |
Fecha de publicación: | 1-jun-2019 | Editor: | Oxford University Press | Citación: | J Exp Bot 70(12): 3283–3296 (2019) | Resumen: | Plant tolerance to freezing temperatures is governed by endogenous components and environmental factors. Exposure to low non-freezing temperatures is a key factor in the induction of freezing tolerance in the process called cold acclimation. The role of nitric oxide (NO) in cold acclimation was explored in Arabidopsis using triple nia1nia2noa1-2 mutants that are impaired in the nitrate-dependent and nitrate-independent pathways of NO production, and are thus NO deficient. Here, we demonstrate that cold-induced NO accumulation is required to promote the full cold acclimation response through C-repeat Binding Factor (CBF)-dependent gene expression, as well as the CBF-independent expression of other cold-responsive genes such as Oxidation-Related Zinc Finger 2 (ZF/OZF2). NO deficiency also altered abscisic acid perception and signaling and the cold-induced production of anthocyanins, which are additional factors involved in cold acclimation. | Descripción: | 14 p.-8 fig.-1 tab. | Versión del editor: | https://doi.org/10.1093/jxb/erz115 | URI: | http://hdl.handle.net/10261/187384 | DOI: | 10.1093/jxb/erz115 | ISSN: | 0022-0957 | E-ISSN: | 1460-2431 |
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J Exp Bot_Costa-Broseta_2019.pdf | Artículo principal | 2,65 MB | Adobe PDF | Visualizar/Abrir |
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