SOS1, HKT1;5, and NHX1 Synergistically Modulate Na Homeostasis in the Halophytic Grass .

is a typical salt-excluding halophytic grass with excellent salt tolerance. Plasma membrane Na/H transporter SOS1, HKT-type protein and tonoplast Na/H antiporter NHX1 are key Na transporters involved in plant salt tolerance. Based on our previous research, we had proposed a function model for these transporters in Na homeostasis according to the expression of and Na, K levels in responding to salt stress.