However, some genes in the cutin and suberin biosynthesis (general form) pathways were significantly increased after infection for 12 d in the original wax gourd (T, susceptible), including CYP86, ACE, and PXG, as well as aldehyde decarbonylase (CER1), which belongs to the wax biosynthesis (general form) pathway. The gene discussed is ACE; the disease is infection.