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dc.contributor.author
Bermudez Salazar, Luisa Fernanda
dc.contributor.author
de Godoy, Fabiana
dc.contributor.author
Baldet, Pierre
dc.contributor.author
Demarco, Diego
dc.contributor.author
Osorio, Sonia
dc.contributor.author
Quadrana, Leandro Daniel
dc.contributor.author
Almeida de Souza, Juliana Beatriz
dc.contributor.author
Asis, Ramón
dc.contributor.author
Gibon, Yves
dc.contributor.author
Fernie, Alisdair
dc.contributor.author
Rossi, Maria Magdalena
dc.contributor.author
Carrari, Fernando Oscar
dc.date.available
2017-12-28T19:25:59Z
dc.date.issued
2014-02
dc.identifier.citation
Carrari, Fernando Oscar; Rossi, Maria Magdalena; Fernie, Alisdair; Gibon, Yves; Asis, Ramón; Almeida de Souza, Juliana Beatriz; et al.; Silencing of the tomato Sugar Partitioning Affecting protein (SPA) modifies sink strength through a shift in leaf sugar metabolism; Wiley; Plant Journal; 77; 5; 2-2014; 676-687
dc.identifier.issn
0960-7412
dc.identifier.uri
http://hdl.handle.net/11336/31869
dc.description.abstract
Limitations in our understanding about the mechanisms underlying source-sink assimilate partitioning are increasingly becoming a major hurdle for crop yield enhancement via metabolic engineering. By means of a comprehensive approach, this work reports the functional characterization of a DnaJ chaperone related-protein (named as SPA; sugar partition-affecting) involved in assimilate partitioning in tomato plants. SPA protein was found to be targeted to the chloroplast thylakoid membranes. SPA-RNAi tomato plants produced more and heavier fruits, thus resulting in a considerable increment in harvest index. The transgenic plants also displayed increased pigment levels and reduced sucrose, glucose and fructose contents in leaves. Detailed metabolic and enzymatic activities analyses showed that sugar phosphate intermediates are increased while the activity of phosphoglucomutase, sugar kinases and invertases are reduced in the photosynthetic organs of the silenced plants. These changes would be anticipated to promote carbon export from foliar tissues. The combined results suggest that the tomato SPA protein plays an important role in plastid metabolism and mediates the source-sink relationships by affecting the rate of carbon translocation to fruits.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Tomato
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Small Plastidial Protein
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Fruit Metabolism
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Source-Sink Partitioning
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Chloroplast Metabolism
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Silencing of the tomato Sugar Partitioning Affecting protein (SPA) modifies sink strength through a shift in leaf sugar metabolism
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-12-28T18:22:53Z
dc.identifier.eissn
1365-313X
dc.journal.volume
77
dc.journal.number
5
dc.journal.pagination
676-687
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Hoboken
dc.description.fil
Fil: Bermudez Salazar, Luisa Fernanda. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Biotecnología; Argentina. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: de Godoy, Fabiana. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Baldet, Pierre. Universite de Bordeaux; Francia. Institut National de la Recherche Agronomique; Francia
dc.description.fil
Fil: Demarco, Diego. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Osorio, Sonia. Max Planck Institute of Molecular Plant Physiology; Alemania
dc.description.fil
Fil: Quadrana, Leandro Daniel. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Almeida de Souza, Juliana Beatriz. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Asis, Ramón. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Bioquímica Clínica e Inmunología; Argentina
dc.description.fil
Fil: Gibon, Yves. Universite de Bordeaux; Francia. Institut National de la Recherche Agronomique; Francia
dc.description.fil
Fil: Fernie, Alisdair. Max Planck Institute of Molecular Plant Physiology; Alemania
dc.description.fil
Fil: Rossi, Maria Magdalena. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Carrari, Fernando Oscar. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas. Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Plant Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/tpj.12418/abstract
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/tpj.12418