Tags: Chemical Compound, Chemical Substance.
Pyrabactin is a synthetic sulfonamide that mimics abscisic acid (ABA) a naturally produced stress hormone in plants that helps them cope with drought conditions by inhibiting growth. ABA can be manufactured for agricultural use; however ABA is light-sensitive and costly to make. Pyrabactin is relatively inexpensive easy to make and not sensitive to light. Unlike ABA pyrabactin activates only a few of the 14 ABA receptors in the plant needed for effective drought tolerance.
