Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?

The rapid dropping of the leaves of the sensitive touch me not plant (Mimosa pudica) where if one of the leaves is touched, the leaflet folds up and the entire leaf droops. In these plants, the stimulus of touch leads to the loss of turgor at the base of the leaflets and thus consecutively, the base of the petioles. This leads to the wilting and drooping of the leaves of a sensitive plant on a slight touch.