Influence of magnesium concentrations on the biomass and biochemical variations in the freshwater algae, .

The current study deals with the biological response variations on some biochemical properties of the freshwater green algae by exposure to different Mg concentrations (5, 10, and 15) mg/L. Physiological and biochemical parameters, including growth curve, doubling time, photosynthesis pigments, total protein and carbohydrates were investigated. Moreover, enzymatic parameters such as catalase (CAT), superoxide dismutase (SOD), and reactive oxygen species (ROS) were also examined.