Abscisic Acid Monoammonium Salt R Isomer, also known as ABA, is a phytohormone that plays a crucial role in various plant physiological processes. As a synonym for ABA, it is commonly referred to as Abscisic Acid R-MAA. This specific isomer of abscisic acid has been extensively studied due to its ability to modulate plant response to abiotic stresses, such as drought or cold temperatures. Furthermore, it is frequently denoted as ABA-MAS or ABA Monoammonium Salt R-Isomer. These synonyms allow researchers and scientists to easily communicate and identify this vital plant hormone in their studies and experiments aimed at comprehending its biological functions and potential applications in agriculture and stress management.