Peculiarities of the Influence of Oil Products on the Content and Ratio of Photosynthetic Pigments of Ceratophyllum demersum L.

Abstract

As a result of the performed investigations, it has been found that at the concentration of oil products, including petrol and diesel fuel, of 5.0 and 10.0 mg/L the content of photosynthetic pigments (chlorophylls <i>a</i> and <i>b</i> and carotenoids), and also (chlorophyll <i>a</i>/chlorophyll <i>b</i>) and (chlorophyll <i>a</i> + chlorophyll <i>b</i>)/carotenoids ratios significantly decreased, which is indicative of inhibiting the vital activity of macrophytes. It has been shown that the pigment system of <i>C. demersum </i>proved to be rather resistant to the influence of the concentrations of petrol and diesel fuel of 0.5 and 1.0 mg/L. This fact suggests that this species of higher aquatic plants can be used for phytoremediation of the aquatic environment moderately contaminated by oil products.