Table 2. Influence of Yeast (C. versatalis) and Bacterial (L. helveticus) elicitors on peroxidase activity (x 106 U L-1). Each value is the mean ± SE of six replicates. |
Dry cell powders (DCPs) |
Time of elicitor addition (day) |
Culture filtrates(CFs) |
Time of elicitor addition (day) |
|||||
|
Treatment |
15 |
18 |
20 |
Treatment |
15 |
18 |
20 |
Control* |
|
2.75 ± 0.05 |
2.85 ± 0.03 |
2.80 ± 0.04 |
Control* |
2.75 ± 0.05 |
2.85 ± 0.03 |
2.80 ± 0.04 |
C. versatalis |
0.10 |
9.68 ± 0.33a |
9.63 ± 0.28a |
5.43 ± 0.12a |
1.0 |
1.25 ± 0.11a |
0.72 ± 0.33ab |
1.18 ± 0.15a |
0.25 |
8.76 ± 0.16ab |
8.25 ± 0.15bc |
5.03 ± 0.11ab |
2.5 |
0.77 ± 0.32ab |
1.41 ± 0.12a |
0.49 ± 0.20ab |
|
0.50 |
7.32 ± 0.33c |
7.83 ± 0.22bc |
4.92 ± 0.03ab |
5.0 |
0.36 ± 0.04 ab |
0.58 ± 0.25ab |
0.62 ± 0.34ab |
|
L. helveticus |
0.10 |
6.45 ± 0.12d |
8.07 ± 0.21bc |
3.56 ± 0.32c |
1.0 |
0.53 ± 0.02 ab |
0.76 ± 0.05ab |
0.67 ± 0.11ab |
0.25 |
5.35 ± 0.24e |
7.40 ± 0.18c |
3.51 ± 0.41c |
2.5 |
1.19 ± 0.14a |
0.85 ± 0.11ab |
0.40 ± 0.01ab |
|
0.50 |
4.35 ± 0.02f |
6.95 ± 0.41cd |
3.47 ± 0.19c |
5.0 |
0.68 ± 0.32 ab |
0.20 ± 0.34b |
0.56 ± 0.30ab |
*Though
simultaneous controls for all the treatments were used, control data
of all the experiments were averaged to minimise error. |
|