Molecular and Functional Adaptations Underlying the Exceptional Salt Tolerance of the Alga Dunaliella salina Chapter uri icon


  • Unicellular green algae of the genus Dunaliella are exceptionally salt tolerant, able to proliferate over practically the entire range of NaCl concentrations (from 0.1 M to near saturation) while maintaining a relatively low internal ionic concentration (Avron 1986). The algal cells achieve osmotic balance by accumulating up to multimolar concentrations of glycerol, generally considered as a fully compatible osmolyte. Consequently, intracellular proteins and other components of Dunaliella normally do not encounter high salinities but high concentrations of glycerol.In contrast, proteins with essential extracellular domains are expected to retain adequate structural and functional properties within the broad range of salinities potentially encountered by the algae.

author list (cited authors)

  • Zamir, A., Azachi, M., Bageshwar, U., Fisher, M., Gokhman, I., Premkumar, L., Sadka, A., & Savchenko, T.

citation count

  • 3

complete list of authors

  • Zamir, A||Azachi, M||Bageshwar, U||Fisher, M||Gokhman, I||Premkumar, L||Sadka, A||Savchenko, T

editor list (cited editors)

  • Ventosa, A.

Book Title

  • Halophilic Microorganisms

publication date

  • January 2004