The primed (T1D, T2D, T3D) plants had relatively higher P5CS (26.54, 25.43, and 23.52%, respectively) and BADH (23.68, 18.21, and 19.73%, respectively) activities than those of the non-primed (T0D) plants under drought. Here, ALDH18A1 is linked to type 1 diabetes mellitus.