Introduction
(S)-(+)-Abscisic Acid (ABA) is a naturally occurring plant hormone belonging to the sesquiterpenoid family, playing a central role in regulating plant growth, development, and stress responses. It modulates processes such as seed dormancy, stomatal closure, and adaptation to drought or salinity by activating specific signaling pathways and transcription factors. The (S)-(+)-enantiomer represents the biologically active form of ABA in plants. Due to its defined stereochemistry, stability, and physiological significance, (S)-(+)-abscisic acid serves as an important reference compound in plant physiology studies, stress signaling research, and agricultural biotechnology applications.
COA
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