Open AccessHeavy Metals Mixture Phytotoxic Impact upon Elodea canadensis Macrophite uner the Experimental Ecosystems Conditions
Author(s) -
В. А. Поклонов
Publication year - 2017
Publication title -
vodnoe hozâjstvo rossii: problemy, tehnologii, upravlenie/vodnoe hozâjstvo rossii : problemy, tehnologii, upravlenie
Language(s) - English
Resource type - Journals
eISSN - 2686-8253
pISSN - 1999-4508
DOI - 10.35567/1999-4508-2017-1-8
Subject(s) - microcosm , elodea canadensis , environmental chemistry , incubation , macrophyte , aquatic plant , aquatic ecosystem , hydrocharitaceae , ecotoxicology , chemistry , heavy metals , environmental science , ecology , biology , biochemistry
Phytotoxic effect of the heavy metal mixture polluted water has been investigated. The experimental microcosm water contained heavy metals (Zn, Сu, Pb, Cd, Fe+2, Fe+3, Cr+6, Ni). Metal concentrations have been selected to simulate water pollution with machine-building waste (slimes). Such an experiment has been carried out in vitro for the first time. Elodea canadensis macrophite as one of the most adopted and wide-spread species was incubated into the microcosms. No phytotoxic effect was recorded in the microcosms with plants and admixture of heavy metals over the first three days. The death of plants was detected 168 hours (7 days) after the start of incubation. Microcosms with plants without adding of the metals did not alter after the start of incubation. On the second day after incubation and orange sediment precipitated in the microcosms without macrophytes but with the heavy metals adding. The investigation results supplement the vision concerning polyfunctional role of hydrocoles in the elements migration within aquatic ecosystems. The obtained data indicated the prospective and promising character of further research of Elodea canadensis in terms of phytomefitation and search for the upper boundary of tolerance to heavy metals.