Cloning and sequence analysis of K+ channel PtAKT1 gene fragment from halophyte (Puccinellia tenuiflora) Cloning and bio-infomatical analysis of the high-affinity K+ transporter gene PutHKT2;1 from the halophyte Puccinellia tenuiflora EFFECT OF SODIUM CARBONATE STRESS ON AMINO ACID CONTENTS OF PUCCINELLIA TENUIFLORA SEEDLINGS Effects of Na2CO3 on Defensive Enzyme Activity of Puccinellia tenuiflora Seeds Cloning and Expression Analysis of PtLIR1 Gene from Puccinellia tenuiflora Under NaCl Stress Cloning and expression of PtGAPDH from Puccinellia tenuiflora