OGs induce phosphorylation of AHA1 and AHA2 at the conserved residue Ser899, a modification that has been reported to inhibit proton transport (Haruta et al., 2014) and to occur in response to flg22.Several subunits of V-ATPase (VHA-A, VHA-E1, and DET3)
also change their phosphorylation status in response to OGs.