Abscisic acid - like inhibitor

Bagni, N., Malucelli, B., and Torrigiani, P., Polyamines, storage substances and abscisic acid-like inhibitors during dormancy and very early activation of Helianthus tuberosus tissue slices, Plant Physiol., 49, 341-345, 1980. 

Classically, there are five main categories of naturally occurring PGR, the auxins (lAA, NAA, IBA, 2,4-dichlorophenoxyacetic add), gibbereHins (GA), cytoM-nins (kinetin, benzyladenin, zeatin), ethylene, and growth inhibitors like abscisic acid (ABA). 

Growth inhibitors like abscisic acid (dormin) and abscisin II retard growth, promote abscission, and induce dormancy. They were discovered in the 1960s [18]. They directly affect cell division and expansion and induce stomatal closure [8]. 

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