Polyamines (PAs) are low molecular weight, aliphatic polycations ubiquitously present in all living organisms. They play crucial roles in a variety of physiological processes in plants, including growth, development, and stress responses. The primary polyamines found in plants are putrescine (Put), spermidine (Spd), and spermine (Spm). Their ability to interact with nucleic acids, proteins, and READ MORE