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Table 3 Effect of different concentrations of boron on proline, TBARS and antioxidant enzymes of M. arvensis and C. flexuosus

From: Effects of boron toxicity on growth, oxidative damage, antioxidant enzymes and essential oil fingerprinting in Mentha arvensis and Cymbopogon flexuosus

Plants/treatments

Proline content (mg plant−1)

TBARS content (nmol g−1 FW)

CAT activity (units mg−1 protein)

POX activity (units mg−1 protein)

SOD activity (units mg−1 protein)

M. arvensis

 Control

5.34 ± 0.21f

3.21 ± 0.28e

17.75 ± 0.87e

22.10 ± 0.66f

4.55 ± 0.23e

 2.5 B

5.98 ± 0.22e

3.34 ± 0.34e

19.42 ± 1.30d

24.34 ± 0.92e

4.68 ± 0.27e

 5 B

6.49 ± 0.35d

4.45 ± 0.46d

21.23 ± 1.90d

28.61 ± 1.10d

5.56 ± 0.30d

10 B

7.34 ± 0.48c

5.58 ± 0.51c

25.34 ± 2.28c

32.14 ± 1.43c

6.78 ± 0.32c

 20 B

9.98 ± 0.64b

7.12 ± 0.58b

31.11 ± 2.72b

38.45 ± 1.61b

7.22 ± 0.35b

 30 B

11.21 ± 0.72a

9.01 ± 0.72a

39.23 ± 3.20a

48.12 ± 2.10a

8.67 ± 0.36a

C. flexuosus

 Control

4.21 ± 0.24f

2.04 ± 0.17f

23.34 ± 0.94e

19.12 ± 0.50f

3.12 ± 0.16e

 2.5 B

4.82 ± 0.30e

2.62 ± 0.32e

24.23 ± 1.19e

21.23 ± 0.83e

3.24 ± 0.18e

 5 B

5.35 ± 0.41d

3.19 ± 0.56d

27.42 ± 1.44d

23.56 ± 1.55d

4.17 ± 0.22d

 10 B

6.37 ± 0.63c

4.31 ± 0.67c

31.71 ± 1.07c

28.99 ± 1.65c

5.51 ± 0.22c

 20 B

7.87 ± 0.81b

5.74 ± 0.71b

38.39 ± 1.14b

33.87 ± 1.69b

6.45 ± 0.23b

 30 B

10.12 ± 0.96a

7.01 ± 0.83a

44.12 ± 1.33a

42.12 ± 1.87a

8.04 ± 0.32a

  1. Data represent the mean value ± standard error from five replicates (n = 5). The different lower case letters represent statistically significant differences between treatments (p < 0.05)