Fig. 3
[Figure reprinted with permission from Mazzei et al. Copyright 2016 by J. Agric. Food Chem. (ACS)]
1H HRMAS CPMG NMR spectrum of control tomato leaves acquired at a spin rate of 5 kHz. Three spectral regions are shown: a 0.8–3.3 ppm, b 3.34–4.27 ppm, and c 4.4–9.25 ppm. The labels refer to assignment of the most intense signals detected in all treatments (F fructose, G glucose, Gal galactose, S sucrose, ACho acetylcholine, GABA γ-aminobutyric acid, and UDP uridine diphosphate).