Retardation of Endogenous ABA Synthesis by NDGA in Leaves Affects Anthocyanin, Sugar, and Aroma Volatile Concentrations in ‘Kyoho’ Grape Berries

The accumulation of abscisic acid (ABA) is considered a crucial signal for the onset berry maturation in grape berry, including ‘Kyoho’ (Vitis labruscana L.). Therefore, delay maturation, especially peel coloration, by applying an ABA inhibitor (nordihydroguaiaretic acid, NDGA) to clusters has been investigated various studies. Herein, we report first time that NDGA treatment on leaves inhibited both ABA, and genes related transduction, peels triggered inhibition anthocyanin sucrose. We also found changes expression patterns sucrose biosynthesis were concomitant with accumulation. Finally, RNA sequence analysis showed changed internal oxygen levels flesh, which known affect cellular alcohol dehydrogenase activity. In this study, measured concentrations alcoholic alcohol-derived aroma volatiles such as hexenal phenylethyl alcohol, flesh. These results suggest possibility transduction from berries.