Sulfur dioxide maintains storage quality of table grape (Vitis vinifera cv ‘Kyoho’) by altering cuticular wax composition after simulated transportation

•Simulated transport vibration accelerated the quality deterioration of table grapes during storage.•Vibration stress changed the morphology and chemical profile of cuticular wax in table grapes.•SO2 treatment ameliorated vibration stress-induced losses in the postharvest quality of table grapes.•SO2 treatment increased triterpenoid wax abundance by regulating related genes expression.