Proton nmr quantitative profiling for quality assessment of greenhouse-grown tomato fruit








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titreProton nmr quantitative profiling for quality assessment of greenhouse-grown tomato fruit
date de publication14.05.2017
taille6.71 Kb.
typeDocumentos
Proton NMR quantitative profiling for quality assessment of greenhouse-grown tomato fruit.
Catherine Debordea,b,*, Mickaël Maucourtb,c, Pierre Baldeta, Stéphane Bernillona,b , Benoît Biaisa,b, Gilles Talond, Carine Ferrande, Daniel Jacobf,g, Hélène Ferry-Dumazetf, Antoine de Daruvarf,h,i, Dominique Rolinc, and Annick Moinga
a INRA, UMR619 Biologie du Fruit, IFR103 BVI, BP 81, F-33140 Villenave d’Ornon, France

b Plateforme Métabolome-Fluxome de Génomique Fonctionnelle Bordeaux, IFR103 BVI, BP 81, F-33140 Villenave d’Ornon, France

c Université de Bordeaux, UMR619, F-33140 Villenave d’Ornon, France

d Hortis Aquitaine, F-47110 Sainte Livrade, France

e Université de Bordeaux, Département Universitaire des Sciences d’Agen, Avenue Michel Serres, F-47000 Agen, France

f Université de Bordeaux, Centre de Bioinformatique de Bordeaux – Génomique Fonctionnelle Bordeaux, 146 rue Léo Saignat, F-33076 Bordeaux, France

g INRA, UMA1251, IFR103 BVI, BP 81, F-33140 Villenave d’Ornon, France

h Université de Bordeaux, UMR 5800 Laboratoire Bordelais de Recherche en Informatique, F-33405 Talence, France

i CNRS, UMR 5800 Laboratoire Bordelais de Recherche en Informatique, F-33405 Talence, France
*Correspondence should be addressed to C. Deborde (cdeborde@bordeaux.inra.fr)

Detailed description of Figure 7 “Seasonal changes for 8 metabolites discriminating Palmiro and Clotilde varieties.” (A) Soluble sugars (Uridine/UDP-Glucose). (B) Amino acids (alanine, GABA, isoleucine, phenylalanine, tyrosine, valine). (C) Unknown metabolites (unkS5.4). For each month, * indicates a significant difference between the two varieties according to Student’s t-test (*P<0.05).
Changes along the season for the main compounds discriminating the two varieties (absolute value of loadings > 0.2) are presented Figs 7A-C. GABA was the only metabolite showing a clear trend for seven months out of eight. GABA concentrations were significantly higher in Palmiro than in Clotilde all over the harvest season except in April (t test, P<0.05). The mean Palmiro over Clotilde ratio for GABA concentration was 1.47 over seven months. The other amino acids showed less straightforward trends (Fig. 7C). Isoleucine and valine concentrations were also significantly higher in Palmiro than in Clotilde but only in May, June and August for isoleucine and in May-August and October for valine. Alanine concentrations were significantly higher in Clotilde than in Palmiro in five months out of eight, April, June, July, September and October. Phenylalanine concentrations were significantly higher in Clotilde than in Palmiro in April and September, while tyrosine concentration was significantly higher in Clotilde only in September. Concerning the other families of discriminant compounds, unkS5.4 concentrations were significantly higher in Palmiro than in Clotilde in March, May, June and September (Fig. 7B). Uridine/UDP-Glucose (Fig. 7A) showed significant differences between the two varieties only in September.

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