Effect of phosphorus аutoshampooes on the development of soil cyanobacteria

For the first time the effect of three different brands of car shampoo concentrate was studied, as well as of Uni of Felix, related to synthetic surfactants, on the development and physiological status of soil cyanobacteria Nostoc paludosum and Fischerella muscicola. So far, it is shown that under the in-fluence of car shampoo in the concentrations used for washing autos, the following indicators of cya-nobacterial populations are changed: their number and dehydrogenase activity. The inhibitory effect on autoshampooes on cyanobacterial populations depends on the brand of car shampoo, their concentration, as well as on the type of cyanobacteria. It was found out at determining the dehydrogenase activity of cyanobacteria cells with the help of tetrazole-topographical method based on calculation of the ratio of living cells containing formazan crystals and those without formazan, as well as with the help of a quantitative spectrophotometric method of formazan determination, that cyanobacteria react to pollutants identically, which allows to use the both methods for determining the degree of toxicity of autoshampooes. The high toxicity of Uni autoshampooes was stated for the cyanobacteria species under research, and Fischerella muscicola is hypersensitivr to all the tested autoshampoos