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Metabolite profile of the tomato dwarf cultivar Micro‐Tom and comparative response to saline and nutritional stresses with regard to a commercial cultivar
Author(s) -
Flores Pilar,
Hernández Virginia,
Hellín Pilar,
Fenoll Jose,
Cava Juana,
Mestre Teresa,
Martínez Vicente
Publication year - 2015
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7256
Subject(s) - cultivar , metabolite , carotenoid , salinity , phytochemical , biology , saline , horticulture , soil salinity , nutrient , food science , botany , biochemistry , ecology , endocrinology
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. © 2015 Society of Chemical Industry