Bikinin directly targets BIN2 of Arabidopsis GSK-3s and activates brassinosteroid-dependent gene expression. Bikinin also inhibits RD26 expression, and inhibits the induction of GUS activity by 150 mM NaCl in the RD26pro:GUS line.
In vivo
Bikinin strongly inhibits abscisic acid signaling outputs, and inhibits T180 phosphorylation of SnRK2.3 and its kinase activity in vivo.