ION HOMEOSTASIS AND OSMOREGULATION IN HALOTOLERANT MICROALGAE

The present paper examines mechanisms of active ion transport localize d in the plasmalemma and processes of osmoregulation in halotolerant a lgae in relation to their ability to accomplish the life cycle under c onditions of high salinity of the medium. The main attention is focuss ed on weakly vacuolized microalgae. A hypothesis is put forward as to coordinated action of ion-transport systems of the plasmalemma and mec hanisms of osmoregulation during adaptation to hyperosmotic salinity s tress.