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ISSN: 0018-8166 Print
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DOI: 10.1615/HydrobJ.v42.i4
Pages: 107
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DOI: 10.1615/HydrobJ.v42.i4.70
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Article price - $40.00 |
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On the Mechanism of Action of Easily Oxidizable Phenols on Photosynthetic Activity of Algae
V. D. Romanenko
Instutute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Geroyev Stalingrada Prosp., 04210 Kiev, Ukraine
A. I. Sakevich
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
O. M. Usenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
ABSTRACT
Absorption of exogenous oxidized polyphenols by algal cells is responsible for changes in their photosynthetic activity. Under conditions of subacidic reaction of cytoplasm, quinones are reduced at the expense of hydrogen ions formed as a result of water photolysis in the photosystem II. Cyclic and non-cyclic photophosphorylation is inhibited under such conditions. The algal cell becomes energetically exhausted. The photosynthetic activity of blue-green and green algae is inhibited at different concentrations of quinones dissolved in water.
pages 82-92
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