Table 2. Inhibition of Arabidopsis HPPD and rice HPPD.
| Compond | IC50 (nM)a) | |
|---|---|---|
| AtHPPD | OsHPPD | |
| Fenquinotrione | 44.7±12.7 | 27.2±1.5 |
| Benzobicyclon (active form) | 46.9±3.6 | NT |
| Tefryltrione | 35.8±2.7 | NT |
a) The nano molar concentrations required for 50% inhibition of AtHPPD were calculated by the probit method. Data are expressed as the mean±S.D. of three independent experiments. NT, not tested