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Table 2 Antioxidant enzymes biomarkers in M. aeruginosa exposed to different paraquat concentrations

From: Multiple physiological response analyses aid the understanding of sensitivity variation between Microcystis aeruginosa and Chlorella sp. under paraquat exposures

  Paraquat (mg L−1)
0.00 0.00 0.01 0.02 0.05 0.10 0.20 0.50 1.00
MDA (U mg−1 protein) 1.34 ± 0.07 1.27 ± 0.03 1.39 ± 0.07 1.24 ± 0.03 1.29 ± 0.07 1.37 ± 0.02 1.41 ± 0.23 1.50 ± 0.27 1.72 ± 0.00
CAT (U mg−1 protein) 20.58 ± 1.37 22.72 ± 1.13 25.59 ± 0.36 24.07 ± 0.544 29.61 ± 1.17 37.86 ± 3.55** 200.31 ± 40.34** 242.21 ± 3.55** 260.20 ± 27.02**
SOD (U mg−1 protein) 49.04 ± 5.31 56.29 ± 3.60 65.07 ± 1.00 59.57 ± 2.64 71.73 ± 3.85 88.80 ± 4.68* 208.41 ± 38.59** 406.55 ± 7.30** 436.80 ± 63.22**
  1. Average values ± SE (n = 3). *p < 0.05