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dc.contributor.author
Burrieza, Hernán Pablo
dc.contributor.author
Lopez Fernandez, Maria Paula
dc.contributor.author
Chiquieri, Tatiana Barroso
dc.contributor.author
Silveira, Vanildo
dc.contributor.author
Maldonado, Sara Beatriz
dc.date.available
2024-09-04T15:43:32Z
dc.date.issued
2012-08
dc.identifier.citation
Burrieza, Hernán Pablo; Lopez Fernandez, Maria Paula; Chiquieri, Tatiana Barroso; Silveira, Vanildo; Maldonado, Sara Beatriz; Accumulation pattern of dehydrins during sugarcane (var. SP80.3280) somatic embryogenesis; Springer; Plant Cell Reports; 31; 12; 8-2012; 2139-2149
dc.identifier.issn
0721-7714
dc.identifier.uri
http://hdl.handle.net/11336/243604
dc.description.abstract
The objective of the present study was to determine dehydrin protein levels in sugarcane var. SP80- 3280 during somatic embryogenesis. Dehydrins from embryogenic and non-embryogenic cell cultures were analyzed using western blot and in situ immunolocalization microscopy. Both techniques employ antibodies raised against a highly conserved lysine-rich 15-amino acid sequence termed the K-domain, which is extensively used to recognize proteins immunologically related to the dehydrin family. In embryogenic cultures, western blot analysis of the heat-stable protein fraction revealed eleven major bands ranging from 52 to 17 kDa. They were already visible on the first days, gradually increasing until reaching peak values around day 14, when organogenesis begins, to later decrease in concurrence with the appearance of green plantlets (around day 28). These fluctuations indicate that this pattern of accumulation is under developmental control. Dehydrins were mainly immunolocalized in the nuclei. A phosphatase treatment of protein extracts caused a mobility shift of the 52, 49, and 43 kDa dehydrin bands suggesting a putative modulation mechanism based on protein phosphorylation. In sugarcane embryogenic cultures, presence of dehydrins is a novel finding. Dehydrins were absent in non-embryogenic cultures. The novel findings regarding accumulation, nuclear localization, and phosphorylation of dehydrins provide a starting point for further research on the role of these proteins in the induction and/or maintenance of embryogenesis. Key message The novel findings regarding accumulation, nuclear localization, and phosphorylation of dehydrins provide a starting point for further research on the role of these proteins in the induction and/or maintenance of embryogenesis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Dehydrins
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sugarcane
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somatic embryogenesis
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dehydrin immunological study
dc.subject.classification
Biología del Desarrollo
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Accumulation pattern of dehydrins during sugarcane (var. SP80.3280) somatic embryogenesis
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-09-02T12:17:04Z
dc.journal.volume
31
dc.journal.number
12
dc.journal.pagination
2139-2149
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Burrieza, Hernán Pablo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Fisiología, Biología Molecular y Celular. Laboratorio de Agrobiotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Lopez Fernandez, Maria Paula. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Biodiversidad y Biología Experimental. Laboratorio de Biología del Desarrollo de Las Plantas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Chiquieri, Tatiana Barroso. Universidade Estadual do Norte Fluminense Darcy Ribeiro; Brasil
dc.description.fil
Fil: Silveira, Vanildo. Universidade Estadual do Norte Fluminense Darcy Ribeiro; Brasil
dc.description.fil
Fil: Maldonado, Sara Beatriz. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Plant Cell Reports
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00299-012-1323-z
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00299-012-1323-z
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