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dc.contributor.author
Muñiz García, María Noelia
dc.contributor.author
Muro, Maria Catalina
dc.contributor.author
Mazzocchi, Luciana Carla
dc.contributor.author
Pais, Silvia Marina
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Stritzler, Margarita
dc.contributor.author
Schlesinger, Mariana
dc.contributor.author
Capiati, Daniela Andrea
dc.date.available
2018-05-08T21:18:01Z
dc.date.issued
2016-11
dc.identifier.citation
Muñiz García, María Noelia; Muro, Maria Catalina; Mazzocchi, Luciana Carla; Pais, Silvia Marina; Stritzler, Margarita; et al.; The protein phosphatase 2A catalytic subunit StPP2Ac2b acts as a positive regulator of tuberization induction in Solanum tuberosum L.; Springer; Plant Molecular Biology; 93; 3; 11-2016; 227-245
dc.identifier.issn
0167-4412
dc.identifier.uri
http://hdl.handle.net/11336/44544
dc.description.abstract
The serine/threonine protein phosphatases type 2A (PP2A) are implicated in several physiological processes in plants, playing important roles in hormone responses. In cultivated potato (Solanum tuberosum), six PP2A catalytic subunits (StPP2Ac) were identified. The PP2Ac of the subfamily I (StPP2Ac1, 2a and 2b) were suggested to be involved in the tuberization signaling in leaves, where the environmental and hormonal signals are perceived and integrated. The aim of this study was to investigate the role of PP2A in the tuberization induction in stolons. We selected one of the catalytic subunits of the subfamily I, StPP2Ac2b, to develop transgenic plants overexpressing this gene (StPP2Ac2b-OE). Stolons from StPP2Ac2b-OE plants show higher tuber induction rates in vitro, as compared to wild type stolons, with no differences in the number of tubers obtained at the end of the process. This effect is accompanied by higher expression levels of the gibberellic acid (GA) catabolic enzyme StGA2ox1. GA up-regulates StPP2Ac2b expression in stolons, possibly as part of the feedback system by which the hormone regulates its own level. Sucrose, a tuber-promoting factor in vitro, increases StPP2Ac2b expression. We conclude that StPP2Ac2b acts in stolons as a positive regulator tuber induction, integrating different tuberization-related signals mainly though the modulation of GA metabolism.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Pp2a
dc.subject
Phosphatase
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Potato
dc.subject
Solanum Tuberosum
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The protein phosphatase 2A catalytic subunit StPP2Ac2b acts as a positive regulator of tuberization induction in Solanum tuberosum L.
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-03T21:05:45Z
dc.identifier.eissn
1573-5028
dc.journal.volume
93
dc.journal.number
3
dc.journal.pagination
227-245
dc.journal.pais
Países Bajos
dc.journal.ciudad
Dordrecht
dc.description.fil
Fil: Muñiz García, María Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina
dc.description.fil
Fil: Muro, Maria Catalina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina
dc.description.fil
Fil: Mazzocchi, Luciana Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina
dc.description.fil
Fil: Pais, Silvia Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina
dc.description.fil
Fil: Stritzler, Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina
dc.description.fil
Fil: Schlesinger, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina
dc.description.fil
Fil: Capiati, Daniela Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Ingeniería Genética y Biología Molecular ; Argentina
dc.journal.title
Plant Molecular Biology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s11103-016-0555-7
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1007/s11103-016-0555-7
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