The Expression Analysis of TPS Genes in Winter Wheat and Chinese Spring With Different Cold Resistance Under Cold Acclimation and Freezing Conditions TEST OF TREHALOSE CONTENT AND SEQUENCE ANALYSIS OF TREHALOSE-PHOSPHATE SYNTHASE GENE (TPS) IN MAIZE Expression of AtPSK2 gene in roselle cells FATE OF FERTILIZER N IN WINTER WHEAT/SUMMER MAIZE ROTATION SYSTEM ON HIGH-ERTILITY SOIL Effect of Tremella polysaccharides on protein kinase C activity in murine spleen lymphocytes Marker Free: a Novel Tendency of Transgenic Plants Characterization and Expression Analysis of MaTPS1 from Banana Isolation of polysaccharides from tea and their hypoglycemic activity Aqueous Two-phase System(ATPS) Extraction of Hyperin