Table II.
Inhibition of maize β-UP by aryl propionic and aliphatic acids
| Compound | I50 Value |
|---|---|
| μm | |
| 3-Phenylpropionic acid | 5.6 |
| (S)-2-Phenylpropionic acid | 5.7 |
| (R)-2-Phenylpropionic acid | 115.0 |
| (RS)-2-Benzylpropionic acid | 6.0 |
| (RS)-2-(2,6-dinitrophenoxy)-propionic acid | 0.5 |
| Cyclopropanecarboxylic acid | 8.0 |
| Isobutyric acid | 18.0 |
| Propionic acid | 25.0 |
| N-Butyric acid | 55.0 |
I50 values were determined at a substrate concentration of 8 μM.