Abstract

Summary The volume regulation of Dunaliella bioculata upon transfer into a hypersaline medium is light-dependent and sensitive to inhibitors of the photosynthetic electron transport. When placed in a hypotonic medium the volume regulation of this alga is light-independent and insensitive to the action of inhibitors of the photosynthesis, but sensitive to either cyanide or antimycin, added along with salicylhydroxamic acid (SHAM). This latter inhibition may be related to the cyanide-insensitive oxygen uptake in whole cells of Dunaliella bioculata and has been shown to be reversed by ATP.

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