6-(2-hydroxy-3-methylbenzylamino)purine

Uses

PI-55 is a specific cytokinin receptor inhibitor. PI-55 is structurally related to 6-benzylaminopurine (BAP) and was shown to inhibit competitively BAP binding on Arabidopsis-specific receptors CRE1/AHK4 and AHK3. PI-55 inhibits cytokinins induced haustorium formation and increased parasite aggressiveness[1].

References

[1] Goyet V, et al. Haustorium initiation in the obligate parasitic plant Phelipanche ramosa involves a host-exudated cytokinin signal. J Exp Bot. 2017;68(20):5539-5552. DOI:10.1093/jxb/erx359