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Bulletin of Botanical Research ›› 2000, Vol. 20 ›› Issue (2): 186-188.

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THE EFFECT OF HYPEROSMOTIC SHOCK ON TRANSMEMBRANE K+ OF DUNALIELLA SALINA

DU Yan-ru1, DONG Li-guo1, YANG Min-jie2   

  1. 1. Department of Biology, Harbin Normal University, Harbin 150080;
    2. Hospital of Harbin Normal University, Harbin 150080
  • Received:1999-08-26 Online:2000-06-15 Published:2016-06-14

Abstract: The Km of K+ uptake of Dunaliella salina cells was 2.86mmol/L, which Vmax was 1.39μmol/108 cells h. Hyperosmotic shock stimulated the H+ extrusion of the cells, decreased the rate of K+ uptake and had a little inhibitory effect on K+ extrusion. The effect of hyperosmotic-shock in hibit K+ uptake by which was decreased by CCCP and Li+.

Key words: Dunaliella salina, Hyperosmotic shock, Transm embrane K+, Transport