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dc.contributor.author
Latorre, Lucas Leonel
dc.contributor.author
Fernández, María Belén
dc.contributor.author
Cassia, Raul Oscar
dc.date.available
2023-10-31T15:21:58Z
dc.date.issued
2023-10
dc.identifier.citation
Latorre, Lucas Leonel; Fernández, María Belén; Cassia, Raul Oscar; Nitric oxide is a key part of the UV-B-induced photomorphogenesis in Arabidopsis.; Pergamon-Elsevier Science Ltd; Environmental and Experimental Botany; 2023; 10-2023; 1-26
dc.identifier.issn
0098-8472
dc.identifier.uri
http://hdl.handle.net/11336/216668
dc.description.abstract
Abstract: Ultraviolet- B (UV-B) radiation exerts a dual effect on plants. While high doses induce stress, lower doses act as a signal. The sensing of UV-B triggers a photomorphogenic response, causing changes like the hypocotyl shortening. This response is strongly regulated by the UV-B photoreceptor UV RESISTANCE LOCUS 8 (UVR8). Although nitric oxide (NO) was proven to inhibit hypocotyl elongation in Arabidopsis thaliana, its role in UV-B-induced photomorphogenesis remains unclear. By using the NO probe DAF-FM DA, we found that UV-B radiation induced the accumulation of NO in the hypocotyl. This event is dependent on the presence of UVR8. Moreover, the NO donor S-nitrosoglutathione (GSNO), restored the WT phenotype when the Arabidopsis line lacking UVR8 was grown in the presence of UV-B. Also, we found that DELLA proteins were necessary for GSNO sensing in UV-B-induced photomorphogenesis. We showed that, through DELLAs, GSNO negatively controlled the levels of gibberellin (GA) bioprocessing-related genes. Therefore, a downregulation of GA signaling by NO is proposed. On the other hand, GSNO supplementation before UV-B treatment inhibited the induction of genes of the UVR8 signaling pathway: HY5, CHS, and PHR1. This resulted in augmented DNA damage in short exposure to UV-B scenarios. Altogether, these results point to a complex regulation by NO of the UV-B-induced photomorphogenesis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
UV-B
dc.subject
NITRIC OXIDE
dc.subject
DNA DAMAGE
dc.subject
UVR8
dc.subject.classification
Bioquímica y Biología Molecular
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Nitric oxide is a key part of the UV-B-induced photomorphogenesis in Arabidopsis.
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-10-31T14:24:24Z
dc.journal.volume
2023
dc.journal.pagination
1-26
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Latorre, Lucas Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina
dc.description.fil
Fil: Fernández, María Belén. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina
dc.description.fil
Fil: Cassia, Raul Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina
dc.journal.title
Environmental and Experimental Botany
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0098847223003337
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.envexpbot.2023.105538
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