The abilities to mobilize and/or sequester excess ions within and outside the plant cell are important components of salt-tolerance mechanisms. Mobilization and sequestration of Na+ involves three transport systems facilitated by the plasma membrane H+/Na+ antiporter (SOS1). vacuolar H+/Na+ antiporter (NHX1). and Na+/K+ transporter in vascular tissues (HKT1). https://danddcollectiblers.shop/product-category/essential-tote/