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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  
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Gibon, Yves  
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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/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Tomato  
dc.subject
Small Plastidial Protein  
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Fruit Metabolism  
dc.subject
Source-Sink Partitioning  
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Chloroplast Metabolism  
dc.subject.classification
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