NaCl induced changes in photosystem stoichiometry and photosynthetic activity of the cyanobacterium Microcystis aeruginosa Kütz.

Exposure to 0.4 M NaCl resulted in higher PS I/PS II stoichiometry and increase in the rate of photosynthesis in planktonic cyanobacterium M. aeruginosa. Altered ratios of PS I/PS II as well as photosynthesis and respiration were stabilized within 72 hr of exposure to salt, leading to adaptation of the organism to the changed conditions.