Table 3.
IC50 values of EST and GST inhibitory activity of three ITCs in S. invicta.
| Enzyme | Compound | IC50 (μg/μL) | 95% CIa (μg/μL) | Slope ± SEM | ꭓ2b (df c, p) |
|---|---|---|---|---|---|
| ESTα-NA | 2PEITC | 0.95ad | 0.61–1.47 | 0.72 ± 0.13 | 0.68 (2, 0.71) |
| 3MPITC | 1.87a | 1.36–2.58 | 1.26 ± 0.15 | 4.76 (2, 0.09) | |
| ESTβ-NA | 2PEITC | 0.58a | 0.41–0.82 | 0.87 ± 0.13 | 3.97 (2, 0.14) |
| 3MPITC | 1.26b | 0.97–1.64 | 1.71 ± 0.16 | 6.75 (2, 0.08) | |
| GST | AITC | 3.32a | 2.09–5.28 | 0.89 ± 0.10 | 6.06 (3, 0.1) |
| 2PEITC | 0.61b | 0.40–0.92 | 0.76 ± 0.10 | 7.24 (3, 0.07) | |
| 3MPITC | 0.66b | 0.43–1.01 | 0.76 ± 0.09 | 20.16 (3, 0.22) |
a Confidence Interval. b Pearson’s chi-squared goodness-of fit test. c Degree of freedom. d the same letters within a column for ESTa-NA, ESTβ-NA or GST respectively are not significantly different when the 95% CI failed to overlap. IC50: half maximal inhibitory concentration.