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dc.contributor.author
Almeida, Juliana
dc.contributor.author
da Silva Azevedo, Mariana
dc.contributor.author
Spicher, Livia
dc.contributor.author
Glauser, Gaetán
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vom Dorp, Katharina
dc.contributor.author
Guyer, Luzia
dc.contributor.author
Carranza, Andrea del Valle
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Asis, Ramón
dc.contributor.author
Pereira de Souza, Amanda
dc.contributor.author
Buckeridge, Marcos
dc.contributor.author
Demarco, Diego
dc.contributor.author
Bres, Cécil
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Rothan, Christophe
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Pereira Peres, Lazaro Eustáquio
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Hörtensteiner, Stephan
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Kessler, Felix
dc.contributor.author
Dörmann, Peter
dc.contributor.author
Carrari, Fernando Oscar
dc.contributor.author
Rossi, Magdalena
dc.date.available
2018-05-28T17:59:51Z
dc.date.issued
2015-11
dc.identifier.citation
Almeida, Juliana; da Silva Azevedo, Mariana; Spicher, Livia; Glauser, Gaetán; vom Dorp, Katharina; et al.; Down-regulation of tomato PHYTOL KINASE strongly impairs tocopherol biosynthesis and affects prenyllipid metabolism in an organ-specific manner; Oxford University Press; Journal of Experimental Botany; 67; 3; 11-2015; 919-934
dc.identifier.issn
0022-0957
dc.identifier.uri
http://hdl.handle.net/11336/46286
dc.description.abstract
Tocopherol, a compound with vitamin E (VTE) activity, is a conserved constituent of the plastidial antioxidant network in photosynthetic organisms. The synthesis of tocopherol involves the condensation of an aromatic head group with an isoprenoid prenyl side chain. The latter, phytyl diphosphate, can be derived from chlorophyll phytol tail recycling, which depends on phytol kinase (VTE5) activity. How plants co-ordinate isoprenoid precursor distribution for supplying biosynthesis of tocopherol and other prenyllipids in different organs is poorly understood. Here, Solanum lycopersicum plants impaired in the expression of two VTE5-like genes identified by phylogenetic analyses, named SlVTE5 and SlFOLK, were characterized. Our data show that while SlFOLK does not affect tocopherol content, the production of this metabolite is >80% dependent on SlVTE5 in tomato, in both leaves and fruits. VTE5 deficiency greatly impacted lipid metabolism, including prenylquinones, carotenoids, and fatty acid phytyl esters. However, the prenyllipid profile greatly differed between source and sink organs, revealing organ-specific metabolic adjustments in tomato. Additionally, VTE5-deficient plants displayed starch accumulation and lower CO2 assimilation in leaves associated with mild yield penalty. Taken together, our results provide valuable insights into the distinct regulation of isoprenoid metabolism in leaves and fruits and also expose the interaction between lipid and carbon metabolism, which results in carbohydrate export blockage in the VTE5-deficient plants, affecting tomato fruit quality.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Carotenoids
dc.subject
Chlorophyll
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Phytol
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Phytol Kinase
dc.subject
Prenyllipids
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Solanum Lycopersicum
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Tocopherol
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Tomato
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Vitamin E
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Otras Ciencias Biológicas
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Down-regulation of tomato PHYTOL KINASE strongly impairs tocopherol biosynthesis and affects prenyllipid metabolism in an organ-specific manner
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-22T21:48:58Z
dc.identifier.eissn
1460-2431
dc.journal.volume
67
dc.journal.number
3
dc.journal.pagination
919-934
dc.journal.pais
Reino Unido
dc.journal.ciudad
Oxford
dc.description.fil
Fil: Almeida, Juliana. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: da Silva Azevedo, Mariana. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Spicher, Livia. Universite de Neuchatel; Suiza
dc.description.fil
Fil: Glauser, Gaetán. Universite de Neuchatel; Suiza
dc.description.fil
Fil: vom Dorp, Katharina. Universitat Bonn; Alemania
dc.description.fil
Fil: Guyer, Luzia. Universitat Zurich; Suiza
dc.description.fil
Fil: Carranza, Andrea del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Bioquímica Clínica e Inmunología; Argentina
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: Pereira de Souza, Amanda. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Buckeridge, Marcos. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Demarco, Diego. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Bres, Cécil. Universite de Bordeaux; Francia
dc.description.fil
Fil: Rothan, Christophe. Universite de Bordeaux; Francia
dc.description.fil
Fil: Pereira Peres, Lazaro Eustáquio. Universidade de Sao Paulo; Brasil
dc.description.fil
Fil: Hörtensteiner, Stephan. Universitat Zurich; Suiza
dc.description.fil
Fil: Kessler, Felix. Universite de Neuchatel; Suiza
dc.description.fil
Fil: Dörmann, Peter. Universite de Neuchatel; Suiza
dc.description.fil
Fil: Carrari, Fernando Oscar. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación en Ciencias Veterinarias y Agronómicas; Argentina
dc.description.fil
Fil: Rossi, Magdalena. Universidade de Sao Paulo; Brasil
dc.journal.title
Journal of Experimental Botany
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jxb/article/67/3/919/2893353
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/jxb/erv504
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