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Radial growth and activity of antioxidant enzymes in the three post-radiation Cladosporium cladosporioides generations
A. V. Tugay1, T. I. Tugay1,*, V. A. Zheltonozhsky2, M. V. Zheltonozhskaya2, L. V. Sadovnikov2, G. V. Ponomarenko1, Î. B. Polischuk3Abstract: Radial growth rate and activity of antioxidant enzymes - superoxide dismutase (SOD), catalase and peroxidase - in three post-radiation generations of two strains of Cladosporium cladosporioides: control and with radioadaptive properties were investigated. It was established that hormesis effect by the increase rate of radial growth is more pronounced in post-radiation generations of the control strain than in the generations of strain with radioadaptive properties. However, in enzymatic antioxidant defense system significant hormesis effect is revealed only in three post-radiation generations’ strain with radioadaptive properties, which appears in the increase up to 2 times in SOD activity and the peroxidase activity up to 4 times.
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