Na+ transport in plants.
The ability of plants to grow in high NaCl concentrations is associated with the ability of the plants to transport, compartmentalize, extrude, and mobilize Na(+) ions. While the influx and efflux at the roots establish the steady state rate of entry of Na(+) into the plant, the compartmentation of Na(+) into the cell vacuoles and the radial transport of Na(+) to the stele and its loading into the xylem establish the homeostatic control of Na(+) in the cytosol of the root cells. Removal of Na(+) from the transpirational stream, its distribution within the plant and its progressive accumulation in the leaf vacuoles, will determine the ability to deal with the toxic effects of Na(+). The aim of this review is to highlight and discuss the recent progress in understanding of Na(+) transport in plants.
Apse
Maris P
MP
Arcadia Biosciences, 202 Cousteau Place, Suite 200, Davis, CA 95616, USA. maris.apse@arcadiabio.com
Blumwald
Eduardo
E
D027682:Cation Transport Proteins / Q000378:metabolism; D002451:Cell Compartmentation; D017136:Ion Transport; D008954:Models, Biological; D010940:Plant Proteins / Q000378:metabolism; D018517:Plant Roots / Q000378:metabolism; D010944:Plants / Q000378:metabolism*; D012964:Sodium / Q000378:metabolism*; D014617:Vacuoles / Q000378:metabolism; D052584:Xylem / Q000378:metabolism
D027682:Cation Transport Proteins; D010940:Plant Proteins; D012964:Sodium