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dc.contributor.authorJiménez, Lidia
dc.contributor.authorPott, Delphine
dc.contributor.authorMartinez-Ferri, Elsa
dc.contributor.authorFernie, Alisdair R
dc.contributor.authorVallarino Castro, José G.
dc.contributor.authorOsorio-Algar, Sonia 
dc.date.accessioned2018-03-21T10:59:24Z
dc.date.available2018-03-21T10:59:24Z
dc.date.created2018
dc.date.issued2018-03-21
dc.identifier.urihttps://hdl.handle.net/10630/15426
dc.description.abstractOrganic acids, produced as intermediates of the tricarboxylic cycle, play a crucial role in the plant primary metabolism and are considered as being ones of the most important quality traits in edible fruits. Even if they are key metabolites in a multitude of cellular functions, little is known about their physiological relevance and regulation. Transgenic tomato (Solanum lycopersicum) plants expressing constitutively a bacterial maleate isomerase, which converts reversibly maleate to fumarate, were generated in order to improve our knowledge about the role of organic acids in the crop and fruit metabolism. Growth and reproduction were affected by the unbalance of tricarboxylic cycle intermediates, as a dwarf phenotype and a flowering delay were observed in the transgenic plants. In addition, a delay in chlorophyll synthesis, a decrease in the numbers of stomata and significant changes in some photosynthetic parameters indicated alterations in central primary metabolism. Postharvest was also impaired, as transgenic fruits showed increased water lost and deterioration, indicating a possible role of the organic acids in cell wall metabolism. Finally, preliminary metabolomics analysis pointed out important changes during fruit ripening in flavor-related metabolites, such as acids and sugars, revealing the importance of organic acids in fruit metabolism. Taken together, these data indicate a pivotal role of tricarboxylic cycle intermediates, such as malate or fumarate, as regulatory metabolites. Besides their role in quality fruit characteristics, they are involved in a multitude of functions including growth and photosynthesis.en_US
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.en_US
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPlantas - Metabolismoen_US
dc.subjectÁcidos orgánicosen_US
dc.subject.otherPostharvesten_US
dc.subject.otherTomatoen_US
dc.subject.otherOrganic acids metabolismen_US
dc.titleThe balance between fumarate and malate plays an important role in plant development and postharvest quality in tomato fruiten_US
dc.typeinfo:eu-repo/semantics/conferenceObjecten_US
dc.centroFacultad de Cienciasen_US
dc.relation.eventtitle2nd iPlanta Conference, RNAi: the fture of cross talken_US
dc.relation.eventplacePoznan, Polanden_US
dc.relation.eventdate14/02/2018en_US


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