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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Imprimir: 0018-8166
ISSN On-line: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v54.i3.90
pages 89-102

Toxicity of 4-Tert-Octylphenol and Its Biodegradation by Microalgae of the Genus Microcystis (Cyanoprokaryota)

N. G. Medvedeva
Saint-Petersburg Scientific-Research Center of Ecological Safety Russian Academy of Sciences Saint-Petersburg, Russian
S. V. Zinovyeva
Saint-Petersburg Scientific-Research Center of Ecological Safety Russian Academy of Sciences Saint-Petersburg, Russian
T. B. Zaytseva
Saint-Petersburg Scientific-Research Center of Ecological Safety Russian Academy of Sciences Saint-Petersburg, Russian
P. D. Klochenko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine
T. F. Shevchenko
Institute of Hydrobiology National Academy of Sciences of Ukraine Kiev, Ukraine

RESUMO

Toxic effect of 4-tert-octylphenol and its biodegradation by microalgae of the genus Microcystis Kutz. ex Lemmerm. belonging to water bloom-forming organisms were investigated. It has been found that algae of the genus Microcystis belonging to various species and strains differ in their sensitivity to octylphenol. It has been shown that during the process of the studied microalgae cultivation the content of octylphenol decreases mainly as a result of abiotic processes (photolysis and hydrolysis) and biodegradation and, to a lesser extent, as a result of pollutant sorption by algal cells. It is likely that intensive synthesis of exopolysaccharides by the non-toxic strain Microcystis aeruginosa HPDP-6 can be one of the reasons of a low degree of octylphenol biodegradation.


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