Stability boundaries of unicellular algae Scotiellopeis rubescens to compounds of heavy metals

Lomadze Salome Vasilovna, Kabirov Rustem Rasshatovich, Purina Elena Sergeyevna, Safiullina Lilya Munirovna

Nowadays soil algal flora is under-researched component (scope) of the soil environment. Algae is a necessary component of adipophilin cenoses, which are subject to anthropogenic impact, in particular by heavy metals (HM). Our work presents the results of the action of salts of HM on unicellular green soil alga Scotiellopsis rubescens (Vinatzer). Viewing of the results was performed at the 3rd, 7th, 14th and 21st days. The greatest changes under the action of nitrate of cadmium was observed on day 3, it was revealed that the concentration of 1×10-1 – 1×10-3 Cd(NO3)2 led to the aging of cells, and a concentration of 1×10-4 and 1×10-5 influenced at the internal contents of cells. By the action of nitrate of copper and cobalt at a concentration of 1×10-5 was observed the death of individual cells. Nickel salts have not led to significant infringements, with the exception of highly concentrated solutions. The results led to the conclusion that all the studied heavy metals in varying degrees, affected the statistical, morphological and dimensional indicators. The lowest morphological changes were observed when the salts of nickel were introduced into the environmental, and the greatest effect on the culture Scotiellopsis rubescens of copper salts. A number of toxicity of the metals had the next type: Cu>Cd< Co>Ni.

Keywords:Scotiellopsis rubescens (Vinatzer), salts of heavy metals, stress factor, morphological, anatomical, dimensional indicators