Cloning of a S-adenosyl methionine synthetase gene from Cleistogenes songorica and its expression under drought stress Cloning and bioinformatic analysis of SAMS gene in a mangrove tree Sonneratia alba Studies on chemical structure of polysaccharide Ⅰ obtained from Paecilomyces tenuipes Effects of Exogenous Spd on Expression Analysis of Cucumber SAMs Gene Under Salt Stress and Bioinformatics Analysis of SAMs Protein Photosynthetic characteristics and SAMS gene expression in the red alga Porphyra yezoensis Ueda under high salinity Cloning and Analysis of the Full Length cDNA of SKP1 Gene from Nicotiana tabacum var. samsun NN and Its Expression in E. coli Advances in studies on medicinal fungi Cordyceps cicadae Polyamine Biosynthesis Enzyme Research Progress in Two Key Genes Structural characters and antitumor activity of apolysaccharide PTPS-1 fromPaecilomyces tenuipes