title: Metabolite profile of the tomato dwarf cultivar Micro-Tom and comparative response to saline and nutritional stresses with regard to a commercial cultivar.
abstract: BACKGROUND
  The dwarf tomato variety Micro-Tom has been used as a plant model for studies of plant development. However, its response to environmental and agricultural factors has not been well studied. This work studies the phytochemical content of Micro-Tom tomato and its comparative response to saline and nutritional (N, K and Ca) stresses with regard to a commercial variety.
  
  
  RESULTS
  The chromatographic profiles of Micro-Tom were similar to those of the commercial variety and the only differences appear to be the concentration of the components. In Micro-Tom, the concentrations of sugars and organic acids increased by salinity in a lesser extent than in Optima. Moreover, contrary to that observed in the commercial variety, phenolic compounds and vitamin C did not increase by salinity in the dwarf variety. However, both varieties increased similarly the concentrations of carotenoids under saline conditions. Finally, fruit yield and most primary and secondary metabolite concentrations in Micro-Tom were not affected by N, K or Ca limitation.
  
  
  CONCLUSIONS
  The mutations leading to the dwarf phenotype did not greatly alter the metabolite profiles but studies using Micro-Tom as a plant model should consider the lower capacity for sugars and organic acids under saline conditions and the greater tolerance to nutrient limitation of the dwarf variety.
authors.affiliation: Murcia Institute of Agri-Food Research and Development (IMIDA), c/ Mayor s/n, La Alberca, Murcia, Spain.|Unidad Asociada al CSIC Grupo de Fertirriego y Calidad Hortofrutícola (IMIDA-CEBAS), Murcia, Spain.
authors.forename: Pilar
authors.initials: P
authors.lastname: Flores
authors.affiliation: Murcia Institute of Agri-Food Research and Development (IMIDA), c/ Mayor s/n, La Alberca, Murcia, Spain.
authors.forename: Virginia
authors.initials: V
authors.lastname: Hernández
authors.affiliation: Murcia Institute of Agri-Food Research and Development (IMIDA), c/ Mayor s/n, La Alberca, Murcia, Spain.|Unidad Asociada al CSIC Grupo de Fertirriego y Calidad Hortofrutícola (IMIDA-CEBAS), Murcia, Spain.
authors.forename: Pilar
authors.initials: P
authors.lastname: Hellín
authors.affiliation: Murcia Institute of Agri-Food Research and Development (IMIDA), c/ Mayor s/n, La Alberca, Murcia, Spain.|Unidad Asociada al CSIC Grupo de Fertirriego y Calidad Hortofrutícola (IMIDA-CEBAS), Murcia, Spain.
authors.forename: Jose
authors.initials: J
authors.lastname: Fenoll
authors.affiliation: Murcia Institute of Agri-Food Research and Development (IMIDA), c/ Mayor s/n, La Alberca, Murcia, Spain.
authors.forename: Juana
authors.initials: J
authors.lastname: Cava
authors.affiliation: Centro de Edafología y Biología Aplicada del Segura, CSIC, P.O. Box 164, E-30100, Murcia, Spain.
authors.forename: Teresa
authors.initials: T
authors.lastname: Mestre
authors.affiliation: Unidad Asociada al CSIC Grupo de Fertirriego y Calidad Hortofrutícola (IMIDA-CEBAS), Murcia, Spain.|Centro de Edafología y Biología Aplicada del Segura, CSIC, P.O. Box 164, E-30100, Murcia, Spain.
authors.forename: Vicente
authors.initials: V
authors.lastname: Martínez
mesh_terms: D000383:Agriculture / Q000379:methods; D001205:Ascorbic Acid / Q000032:analysis; D004777:Environment; D005638:Fruit / Q000737:chemistry / Q000254:growth & development; D018551:Solanum lycopersicum / Q000737:chemistry* / Q000235:genetics / Q000254:growth & development; D055442:Metabolome; D009154:Mutation; D010636:Phenols / Q000032:analysis; D064209:Phytochemicals / Q000032:analysis; D012965:Sodium Chloride / Q000494:pharmacology*; D013312:Stress, Physiological
chemical_list: D010636:Phenols; D064209:Phytochemicals; D012965:Sodium Chloride; D001205:Ascorbic Acid
keywords: carotenoids; organic acids; phenolic; sugars; vitamin C