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dc.contributor.author
Dotto, Marcela Claudia  
dc.contributor.author
Gomez, Maria Sol  
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Soto, María Soledad  
dc.contributor.author
Casati, Paula  
dc.date.available
2019-11-19T23:09:49Z  
dc.date.issued
2018-06  
dc.identifier.citation
Dotto, Marcela Claudia; Gomez, Maria Sol; Soto, María Soledad; Casati, Paula; UV-B radiation delays flowering time through changes in the PRC2 complex activity and miR156 levels in Arabidopsis thaliana; Wiley Blackwell Publishing, Inc; Plant, Cell and Environment; 41; 6; 6-2018; 1394-1406  
dc.identifier.issn
0140-7791  
dc.identifier.uri
http://hdl.handle.net/11336/89248  
dc.description.abstract
UV-B is a high-energy component of the solar radiation perceived by the plant and induces a number of modifications in plant growth and development, including changes in flowering time. However, the molecular mechanisms underlying these changes are largely unknown. In the present work, we demonstrate that Arabidopsis plants grown under white light supplemented with UV-B show a delay in flowering time, and this developmental reprogramming is mediated by the UVR8 photoreceptor. Using a combination of gene expression analyses and UV-B irradiation of different flowering mutants, we gained insight into the pathways involved in the observed flowering time delay in UV-B-exposed Arabidopsis plants. We provide evidence that UV-B light downregulates the expression of MSI1 and CLF, two of the components of the polycomb repressive complex 2, which in consequence drives a decrease in H3K27me3 histone methylation of MIR156 and FLC genes. Modification in the expression of several flowering time genes as a consequence of the decrease in the polycomb repressive complex 2 activity was also determined. UV-B exposure of flowering mutants supports the involvement of this complex in the observed delay in flowering time, mostly through the age pathway.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Wiley Blackwell Publishing, Inc  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
ARABIDOPSIS  
dc.subject
FLOWERING TIME  
dc.subject
H3K27ME3  
dc.subject
MIR156  
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PRC2  
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UV-B  
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UVR8  
dc.subject.classification
Ciencias de las Plantas, Botánica  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
UV-B radiation delays flowering time through changes in the PRC2 complex activity and miR156 levels in Arabidopsis thaliana  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-10-11T13:47:17Z  
dc.journal.volume
41  
dc.journal.number
6  
dc.journal.pagination
1394-1406  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Londres  
dc.description.fil
Fil: Dotto, Marcela Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina  
dc.description.fil
Fil: Gomez, Maria Sol. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina  
dc.description.fil
Fil: Soto, María Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina  
dc.description.fil
Fil: Casati, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro de Estudios Fotosintéticos y Bioquímicos. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos; Argentina  
dc.journal.title
Plant, Cell and Environment  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://doi.wiley.com/10.1111/pce.13166  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/pce.13166