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dc.contributor.author
Raineri, Jesica  
dc.contributor.author
Hartman, Matias Daniel  
dc.contributor.author
Chan, Raquel Lia  
dc.contributor.author
Iglesias, Alberto Alvaro  
dc.contributor.author
Ribichich, Karina Fabiana  
dc.date.available
2018-05-16T19:37:19Z  
dc.date.issued
2016-06  
dc.identifier.citation
Raineri, Jesica; Hartman, Matias Daniel; Chan, Raquel Lia; Iglesias, Alberto Alvaro; Ribichich, Karina Fabiana; A sunflower WRKY transcription factor stimulates the mobilization of seed stored reserves during germination and post-germination growth; Springer; Plant Cell Reports; 35; 9; 6-2016; 1875-1890  
dc.identifier.issn
0721-7714  
dc.identifier.uri
http://hdl.handle.net/11336/45425  
dc.description.abstract
Germinating oilseeds convert stored lipids into sugars and thereafter in metabolic energy that is used in seedling growth and establishment. During germination, the induced lipolysis linked to the glyoxylate pathway and gluconeogenesis produces sucrose, which is then transported to the embryo and driven through catabolic routes. Herein, we report that the sunflower transcription factor HaWRKY10 regulates carbon partitioning by reducing carbohydrate catabolism and increasing lipolysis and gluconeogenesis. HaWRKY10 was regulated by abscisic acid and gibberellins in the embryo leaves 48 hours after seed imbibition and highly expressed during sunflower seed germination and seedling growth, concomitantly with lipid mobilization. Sunflower leaf discs overexpressing HaWRKY10 showed repressed the expression of genes related to sucrose cleavage and glycolysis compared to controls. Moreover, HaWRKY10 constitutive expression in Arabidopsis seeds produced higher decrease in lipid reserves, whereas starch and sucrose were more preserved compared to wild type. Gene transcripts abundance and enzyme activities involved in stored lipid mobilization and gluconeogenesis increased more in transgenic than in wild type seeds 36 hours after imbibition whereas the negative regulator of lipid mobilization, ABI4, was repressed. Altogether, the results point out a functional parallelism between tissues and plant species, and reveal HaWRKY10 as a positive regulator of storage reserve mobilization in sunflower.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Sunflower  
dc.subject
Reserves Mobilization  
dc.subject
Germination  
dc.subject
Arabidopsis  
dc.subject
Transcription Factor  
dc.subject
Wrky  
dc.subject.classification
Otras Ciencias Biológicas  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
A sunflower WRKY transcription factor stimulates the mobilization of seed stored reserves during germination and post-germination growth  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-05-11T21:17:21Z  
dc.journal.volume
35  
dc.journal.number
9  
dc.journal.pagination
1875-1890  
dc.journal.pais
Alemania  
dc.journal.ciudad
Berlin  
dc.description.fil
Fil: Raineri, Jesica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina  
dc.description.fil
Fil: Hartman, Matias Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina  
dc.description.fil
Fil: Chan, Raquel Lia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina  
dc.description.fil
Fil: Iglesias, Alberto Alvaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina  
dc.description.fil
Fil: Ribichich, Karina Fabiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina  
dc.journal.title
Plant Cell Reports  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00299-016-2002-2  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00299-016-2002-2