Research areas: (1) the mechanisms of plant response to salinity stress at the levels of physiological, biochemical, and molecular biology, with special emphasis on the functional characterization of ion transporters involved in ionic homeostasis; (2) the efficient utilization of nitrogen nutrition in plants, with special emphasis on the functional characterization of ammonium transporters and nitrate transporters. The approaches involve bioinformation, gene overexpression, the purification of proteins, the isolation of biological membranes, the analysis of transporter activity, yeast two-hybrid system, biomolecular fluorescence complementation technique, etc.