Quinabactin is a sulfonamide Abscisic acid (ABA) agonist. Quinabactin promotes guard cell closure, inhibits water loss, and promotes drought tolerance in adult Arabidopsis and soybean plants.
References:
[1]. Okamoto M, et al. Activation of dimeric ABA receptors elicits guard cell closure, ABA-regulated gene expression, and drought tolerance. Proc Natl Acad Sci U S A. 2013 Jul 16;110(29):12132-7.
















