Peculiarities of heavy metals influence on submerged higher aquatic plants and green filamentous algae

Abstract

Abstract. The study of short-term (during of 1 day) and chronic (14 days) influence of copper (II) and manganese (II) ions on photosynthesis, respiration, chlorophylls a, b and carotenoids of submerged higher water plant Ceratophyllum demersum L. and green filamentous algae Cladophora glomerata (L.) Kütz. was done. The peculiarities of metals accumulation by the macrophytes with increasing of concentration of Cu²⁺ and Mn²⁺ in the aquatic environment and exposure time were established. The connection between sensitivity of gas exchange functions and pigment system of the macrophytes to influence of the metals ions and their accumulation by plant organisms was revealed. The assessment of adaptive capacity of the investigated macrophytes to increasing Cu²⁺ and Mn²⁺ concentration in the aquatic environment was carried out. Keywords: copper, manganese, submerged higher aquatic plants, green filamentous algae, photosynthesis, respiration, pigments, adaptation