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ISSN: 0018-8166 Print
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DOI: 10.1615/HydrobJ.v43.i2
Pages: 103
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DOI: 10.1615/HydrobJ.v43.i2.60
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Article price - $35.00 |
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The Iinfluence of Lead Ions on the Assimilation of Ammonium in the Blue-Green Alga Anabaena cylindrica Lemm
O. I. Bodnar
Ternopol National Pedagogic University, Ternopol, Ukraine
P. D. Klochenko
Institute of Hydrobiology, National Academy of Sciences of Ukraine, 12, Geroyev Stalingrada Pr., 04210 Kiev, Ukraine
V. V. Grubinko
Ternopil National Pedagogic University, Ternopil, Ukraine
ABSTRACT
It has been found that the balance in the glutamate dehydrogenase reaction in the blue-green alga (cyanobacteria) Anabaena cylindrical is shifted towards amination under the influence of lead ions. It is confirmed by higher activity of NADPH-dependent form of enzyme as compared to the activity of NADH-dependent form. Glutamine synthetase activity is inhibited in algal cells by both Pb2+ ions and glutamine produced.
pages 53-62
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