Table 3. Enzymatic activities in T. evansi feeding on moderate drought-stressed or control tomato plants for 10 days.
Control | Drought-stressed | |
---|---|---|
Protein1 | 55±2 | 69±5* |
Digestive enzymes (specific activity) | ||
Cathepsin B2 | 7.8±1.0 | 8.7±1.1 |
Cathepsin L2 | 1.9±0.2 | 1.8±0.2 |
Cathepsin D2 | 13±2 | 5.5±0.4* |
Legumain 2 | 0.29±0.03 | 0.20±0.02* |
Aminopeptidase2 | 23±3 | 24±3 |
α-Amylase2 | 162±7 | 130±8* |
Detoxification enzymes | ||
Esterase2 | 1774±146 | 1397±216 |
GST3 | 197±30 | 179±17 |
P4504 | 0.2±0.02 | 0.2±0.01 |
Data are mean ± SE.
* indicates statistically significant difference between treatments (t-student, p<0.05).
(1) μg/mg fresh weight,
(2) nmol substrate hydrolyzed per min and mg of protein,
(3) nmol CDNB conjugated per min and mg of protein,
(4) nmol cytochrome c reduced per min and mg of protein.