2.4.1.294 metabolism the enzyme is involved in anthocyanin galactosylation in Apium graveolens 759999 2.4.1.294 physiological function the expression of UFGT3a is highly consistent with anthocyanin accumulation. Gene silencing in fruit results in delayed red colorations, lower anthocyanin contents and lower expressions of UFGT3a. Transient overexpression of UFGT3a in both Actinidia arguta and green apple fruit results in higher anthocyanin contents and deeper red coloration 757928