Table 3. Elicitation of POD activity (x 10⁶ U L^-1) purified biotic (GSH and Mej) and abiotic elicitors (Mg, Ca and TDZ). The values are mean ± SE of six replicates.

15

18

20

2.75 ± 0.05

2.85 ± 0.03

2.80 ± 0.04

Glutathione (GSH)

2 mM
4 mM
6 mM
8 mM
10 mM

9.46 ± 0.32^a
4.81 ± 0.23^ef
4.44 ± 0.22^f
4.22 ± 0.18^gf
4.73 ± 0.09^ef

5.65 ± 0.41^b
6.08 ± 0.07^ab
5.63 ± 0.21^b
6.59 ± 0.38^a
6.29 ± 0.12^a

5.73 ± 0.32^cd
5.84 ± 0.21^cd
7.18 ± 0.10^cb
6.24 ± 0.41^cd
6.63 ± 0.12^c

Methyl jasmonate (Mej)

20 µM
40 µM
60 µM
80 µM
100 µm

1.39 ± 0.10ⁱ
1.83 ± 0.41^ih
1.59 ± 0.05ⁱ
1.15 ± 0.23^ji
1.17 ± 0.08^ji

2.33 ± 0.38^ef
1.66 ± 0.15^f
1.64 ± 0.03^f
1.71 ± 0.21^ef
1.68 ± 0.08^ef

1.38 ± 0.23^h
1.52 ± 0.12^h
1.43 ± 0.12^h
0.11 ± 0.05^ih
1.39 ± 0.06^h

Magnesium (Mg)

2 fold
4 fold
6 fold

6.10 ± 0.23^ed
6.20 ± 0.10^ed
7.40 ± 0.23^c

5.01 ± 0.31^cb
5.04 ± 0.05^cb
5.51 ± 0.21^b

6.05 ± 0.12^cd
7.20 ± 0.31^cb
8.49 ± 0.23^a

Calcium (Ca)

2 fold
4 fold
6 fold

7.15 ± 0.41^cd
6.67 ± 0.21^d
5.87 ± 0.10^ed

6.38 ± 0.05^a
6.39 ± 0.12^a
5.26 ± 0.08^cb

6.18 ± 0.41^cd
7.87 ± 0.21^ab
7.68 ± 0.23^b

Thidiazuron (TDZ)

0.25 ppm
0.50 ppm
1.00 ppm

5.54 ± 0.23^e
5.54 ± 0.22^e
5.04 ± 0.04^ef

3.75 ± 0.23^cd
3.61 ± 0.10^d
6.85 ± 0.23^a

6.74 ± 0.12^c
3.53 ± 0.34^f
3.63 ± 0.23^f