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Abstract
Ultraviolet-B radiation (UV-B, 280–315 nm) is an important environmental signal that regulates growth and development in plants. Two dose-dependent UV-B response pathways were described in plants: a specific one, mediated by UVR8 (the specific UV-B receptor) and an unspecific one, activated by the oxidative damage produced by radiation. The constitutively expressed receptor appears inactive as a dimer, with the two monomers dissociating upon UV-B [ver mas...]
dc.contributor.authorTossi, Vanesa Eleonora
dc.contributor.authorRegalado, Jose Javier
dc.contributor.authorIannicelli, Jesica
dc.contributor.authorLaino, Leandro Ezequiel
dc.contributor.authorBurrieza, Hernan Pablo
dc.contributor.authorEscandon, Alejandro Salvio
dc.contributor.authorPitta Alvarez, Sandra Irene
dc.date.accessioned2019-09-05T10:50:22Z
dc.date.available2019-09-05T10:50:22Z
dc.date.issued2019-06
dc.identifier.issn1664-462X
dc.identifier.otherhttps://doi.org/10.3389/fpls.2019.00780
dc.identifier.urihttps://www.frontiersin.org/articles/10.3389/fpls.2019.00780/full
dc.identifier.urihttp://hdl.handle.net/20.500.12123/5781
dc.description.abstractUltraviolet-B radiation (UV-B, 280–315 nm) is an important environmental signal that regulates growth and development in plants. Two dose-dependent UV-B response pathways were described in plants: a specific one, mediated by UVR8 (the specific UV-B receptor) and an unspecific one, activated by the oxidative damage produced by radiation. The constitutively expressed receptor appears inactive as a dimer, with the two monomers dissociating upon UV-B irradiation. The monomer then interacts with COP1, an ubiquitin ligase, hindering its ability to poly-ubiquitinate transcriptional factor HY5, thus averting its degradation and activating the photomorphogenic response. HY5 induces the synthesis of proteins RUP1 and RUP2, which interact with UVR8, releasing COP1, and inducing the re-dimerization of UVR8. This mechanism has been thoroughly characterized in Arabidopsis, where studies have demonstrated that the UVR8 receptor is key in UV-B response. Although Arabidopsis importance as a model plant many mechanisms described in this specie differ in other plants. In this paper, we review the latest information regarding UV-B response mediated by UVR8 in different species, focusing on the differences reported compared to Arabidopsis. For instance, UVR8 is not only induced by UV-B but also by other agents that are expressed differentially in diverse tissues. Also, in some of the species analyzed, proteins with low homology to RUP1 and RUP2 were detected. We also discuss how UVR8 is involved in other developmental and stress processes unrelated to UV-B. We conclude that the receptor is highly versatile, showing differences among species.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherFrontiers Mediaes_AR
dc.rightsinfo:eu-repo/semantics/openAccesses_AR
dc.sourceFrontiers in Plant Science 10 : 780 (Junio 2019)es_AR
dc.subjectUltraviolet radiationeng
dc.subjectRadiación ultravioletaes_AR
dc.subjectArabidopsises_AR
dc.subjectTerrestrial Plantseng
dc.subjectPlantases_AR
dc.subjectGene Expressioneng
dc.subjectExpresión Génicaes_AR
dc.subject.otherPhotomorphogenic Responseeng
dc.subject.otherRespuesta Fotomorfogénicaes_AR
dc.titleBeyond arabidopsis: differential UV-B response mediated by UVR8 in diverse specieses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Genéticaes_AR
dc.description.filFil: Tossi, Vanesa Eleonora. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Regalado, Jose Javier. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Iannicelli, Jesica. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Laino, Leandro Ezequiel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentinaes_AR
dc.description.filFil: Burrieza, Hernan Pablo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentinaes_AR
dc.description.filFil: Escandon, Alejandro Salvio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentinaes_AR
dc.description.filFil: Pitta Alvarez, Sandra. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Biodiversidad y Biología Experimental; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


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