title: Effect of genetic and phenotypic factors on the composition of commercial marmande type tomatoes studied through HRMAS NMR spectroscopy.
abstract: The effects of genetic, technological and environmental factors on the chemical composition of four marmande type tomato varieties have been investigated. The study is based on the analysis of (1)H HRMAS NMR spectra of tomato purée using a combination of partial least squares (PLS) and assigned signal analysis (ASA). In agreement with genetic, morphological and taste characteristics of the tomatoes studied, the analysis of the NMR data allows two groups of samples to be differentiated. The type of culture and climatic conditions can reduce the compositional differences. The extension of the compositional changes produced by climatic conditions is variety-depend. Neither grafting nor perlite affect significantly the relative content of primary metabolites. This was not the case for tomatoes grown using the pure hydroponic production system based on the recirculation of nutrient solution, New Growing System NGS®, which seems to be an effective agricultural approach to improve tomato quality.
authors.affiliation: Área de Química Orgánica, Universidad de Almería, Crta. Sacramento s/n, 04120 Almería, Spain. mjigle@ual.es
authors.forename: María José
authors.initials: MJ
authors.lastname: Iglesias
authors.forename: Jesús
authors.initials: J
authors.lastname: García López
authors.forename: Juan Fernando
authors.initials: JF
authors.lastname: Collados Luján
authors.forename: Fernando
authors.initials: F
authors.lastname: López Ortiz
authors.forename: Humberto
authors.initials: H
authors.lastname: Bojórquez Pereznieto
authors.forename: Fernando
authors.initials: F
authors.lastname: Toresano
authors.forename: Francisco
authors.initials: F
authors.lastname: Camacho
mesh_terms: D005638:Fruit / Q000737:chemistry / Q000235:genetics / Q000254:growth & development; D005838:Genotype; D006801:Humans; D018551:Solanum lycopersicum / Q000737:chemistry* / Q000235:genetics* / Q000254:growth & development; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D010641:Phenotype; D013649:Taste
keywords: (1)H HRMAS NMR; ASA; Cultivation method (soil, perlite, NGS®, grafting); Marmande type tomatoes; PLS