Effect of aeration and redox potential on the growth, photosynthesis and toxin production of cyanobacterium Microcystis aeruginosa 973
The role of aeration and redox potential as the two simultaneously acting physico-chemical factors of the environment in metabolism of the cyanobacterium Microcystis aeruginosa was investigated. It is shown that the growth of cyanobacteria is largely dependent on the aeration of the medium, while the formation of photosynthetic pigments and microcystin LR is mainly affected by redox potential. The results indicate the protective role of microcystins against oxidative stress. By adjusting the levels of aeration and redox potential, it is possible to regulate the metabolism of cyanobacteria.