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International Journal on Algae
SJR: 0.219 SNIP: 0.261 CiteScore™: 0.24

ISSN Imprimer: 1521-9429
ISSN En ligne: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v9.i3.30
pages 224-235

Effect of K2Cr2O7 on the photosynthetic activity and mobility of Euglena gracilis Klebs cells

I. P. Novikova
Taras Shevchenko Kiev National University, 60, VladymirskayaSt., 01017 Kiev, Ukraine
T. V. Parshikova
T. G. Shevchenko Kiev National University, 60, Vladimirskaya St., 01017 Kiev, Ukraine
V. V. Vlasenko
Institute of Bioorganic Chemistry and Oil Chemistry, National Academy of Sciences of Ukraine, 12, Pr. Geroyev Stalingrada, 04210 Kiev, Ukraine
I. B. Zubenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine


The effect of K2Cr2O7 in concentrations 0.05-135 mg/L on physiological characteristics of highly-saprobe green alga Euglena gracilis Klebs was studied. Methods of differential fluorometry and laser-doppler spectrometry were used for study of dynamics of changes in chlorophylls concentration, level of potential photosynthetic activity, and also the rate and energy of cell mobility of Euglena gracilis Klebs depending on duration of contact with potassium bichromate (1; 4 and 7 days). It was revealed that degree of chromium toxicity sufficiently depends both on concentration of acting element and time of the contact: its prolongation leads to notable increasing of toxicity.