Fluoranthene induced changes in photosynthetic pigments, biochemical compounds and enzymatic activities in two microalgal species: Chlorella vulgaris Beijerinck and Desmodesmus subspicatus Chodat

Abstract

The photosynthetic pigments, biochemical and enzymatic activities in two freshwater microalgal species, Chlorella vulgaris and Desmodesmus subspicatus at different fluoranthene concentrations were compared with the control conditions. During 16-days of incubation period when treated with fluoranthene, both microalgal species exhibited variable amount of photosynthetic pigment, biochemical compounds and enzymatic activities. The addition of fluoranthene at concentrations ranged from 1.5 mg l¯¹ to 10 mg l¯¹ to microalgal cultures led to changes in all different metabolites but the patterns varied from species to species. Among the two species tested, pigment, biochemical and enzymatic contents were remarkably declined from 7 % to 95% in C. vulgaris. Moreover, all metabolites in D. subspicatus also diminishing significantly by 3% to 88% of fluoranthene doses (10ppm). These results suggest that fluoranthene-induced changes of pigments, biochemical and enzymatic variations in test microalgae, D. subspicatus and C. vulgaris, might reveal its resistance and ability to metabolize PAHs. At the same time, the PAH impact changes on different metabolic activities were higher at 12 and 16 days than at 4 and 8 days in treated microalgae.

Removal Efficiency of Synthetic Toxic Dye from Water and Waste Water Using Immobilized Green Algae: Bioremediation with Multi Environment Conditions

“…Phycoremediation is a sort of bioremediation that uses algae's ability to remove or degrade pollutants. Algae have unique metabolic capacities, and Toxins can be remedied by algae in a variety of ways, including biosorption, bioaccumulation, and degradation (Nair et al,2023;Patel and Tiwari, 2015).…”

Advances in environmental science: a review of IJE papers (Vol. 3, Iss. 1 & 2)

“…Authors recommended that further studies are required to see the two plant species allelopathic behavior under field condition against others species and to identify the toxic principle, their quantification and their efficacy in the soil. Patel et al (2014) conducted experiments to determine the deleterious and differential effects of fluoranthene on the photosynthetic pigments, metabolic and enzymatic activities of microalgea. The photosynthetic pigments, biochemical and enzymatic activities in two freshwater microalgal species, Chlorella vulgaris and Desmodesmus subspicatus at different fluoranthene concentrations were compared with the control conditions.…”