体外研究
Auxinole is a potent auxin antagonist of TIR1/AFB receptors, and binds TIR1 to block the formation of the TIR1-IAA-Aux/IAA complex and then inhibits auxin-responsive gene expression. In addition, Auxinole competitively inhibits various auxin responses in planta. Auxinole causes reduction in IAA-triggered depolarization in root hair cells. Auxinole (20 µM) also represses the transient increase in [Ca
2+
]
cyt
completely, and blocks Ca
2+
response.