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dc.contributor.author
Rosello, Paula Luciana
dc.contributor.author
Vigliocco, Ana Edit
dc.contributor.author
Andrade, Andrea Mariela
dc.contributor.author
Riera, Natalí Vanesa
dc.contributor.author
Calafat, Mario Jose
dc.contributor.author
Molas, María Lía
dc.contributor.author
Alemano, Sergio Gabriel
dc.date.available
2022-11-30T14:15:58Z
dc.date.issued
2016-02
dc.identifier.citation
Rosello, Paula Luciana; Vigliocco, Ana Edit; Andrade, Andrea Mariela; Riera, Natalí Vanesa; Calafat, Mario Jose; et al.; Differential hormonal and gene expression dynamics in two inbred sunflower lines with contrasting dormancy level; Elsevier France-Editions Scientifiques Medicales Elsevier; Plant Physiology and Biochemistry; 102; 2-2016; 133-140
dc.identifier.issn
0981-9428
dc.identifier.uri
http://hdl.handle.net/11336/179538
dc.description.abstract
Seed germination and dormancy are tightly regulated by hormone metabolism and signaling pathway. We investigated the endogenous content of abscisic acid (ABA), its catabolites, and gibberellins (GAs), as well as the expression level of certain ABA and GAs metabolic and signaling genes in embryo of dry and imbibed cypselas of inbred sunflower (Helianthus annuus L., Asteraceae) lines: B123 (dormant) and B91 (non-dormant). Under our experimental conditions, the expression of RGL2 gene might be related to the ABA peak in B123 line at 3 h of imbibition. Indeed, RGL2 transcripts are absent in dry and early embedded cypselas of the non-dormant line B91. ABA increase was accompanied by a significant ABA-Glucosyl ester (ABA-GE) and phaseic acid (PA) (two ABA catabolites) decrease in B123 line (3 h) which indicates that ABA metabolism seems to be more active in this line, and that it would be involved in the imposition and maintenance of sunflower seed dormancy, as it has been reported for many species. Finally, an increase of bioactive GAs (GA1 and GA3) occurs at 12 h of imbibition in both lines after a decrease in ABA content. This study shows the first report about the RGL2 tissue-specific gene expression in sunflower inbred lines with contrasting dormancy level. Furthermore, our results provide evidence that ABA and GAs content and differential expression of metabolism and signaling genes would be interacting in seed dormancy regulation through a mechanism of action related to embryo itself.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier France-Editions Scientifiques Medicales Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DORMANCY
dc.subject
GENE EXPRESSION
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GERMINATION
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HELIANTHUS ANNUUS L.
dc.subject
PHYTOHORMONES
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Bioquímica y Biología Molecular
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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Otras Agricultura, Silvicultura y Pesca
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Differential hormonal and gene expression dynamics in two inbred sunflower lines with contrasting dormancy level
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-11-30T12:06:50Z
dc.journal.volume
102
dc.journal.pagination
133-140
dc.journal.pais
Francia
dc.journal.ciudad
Paris
dc.description.fil
Fil: Rosello, Paula Luciana. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Vigliocco, Ana Edit. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.description.fil
Fil: Andrade, Andrea Mariela. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.description.fil
Fil: Riera, Natalí Vanesa. Universidad Nacional de Río Cuarto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
dc.description.fil
Fil: Calafat, Mario Jose. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Molas, María Lía. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Alemano, Sergio Gabriel. Universidad Nacional de Río Cuarto; Argentina
dc.journal.title
Plant Physiology and Biochemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0981942816300468
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.plaphy.2016.02.021
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