Fig. 1
From: Vine nitrogen status and volatile thiols and their precursors from plot to transcriptome level
Hypothetical pathway of the glutathionylated precursor (Glut-3SH) and cysteinylated precursor (Cys-3SH) of 3SH in grape berries as described by Kobayashi et al. and Thibon et al. [21, 22]. In the berry, illustrated as a circle, Glut-3SH derives from Glut-3SH-al, which is formed by the combination of the glutathione (GSH) with the trans-2-hexenal. In the must, the production of 3-sulfanylhexan-1-ol (3SH) occurs during the alcoholic fermentation by the yeast