Int.J.Curr.Microbiol.App.Sci (2020) 9(6): 3519-3529 3519 Review Article https://doi.org/10.20546/ijcmas.2020.906.414 Role of Polyamines on Post-Harvest Fruit Quality and Storability Divya Vani Vaka 1* , Kommana Pavani 2 , Bharathi Nirujogi 1 and P. Vinaya Kumar Reddy 3 1 Department of Fruit Science, COH, Venkataramannagudem, Dr. Y. S. R. H. U, Andhra Pradesh, India 2 Department of Horticulture, MSSSoA, Centurion University of Technology and Management, Parlakhemundi, Odisha, India 3 COH, Venkataramannagudem, Dr. Y. S. R. H.U, Andhra Pradesh, India *Corresponding author ABSTRACT Introduction Polyamines (PAs) are small aliphatic amines that are ubiquitous in all plant cells. Polyamines interact with negatively charged macromolecules such as DNA, RNA, proteins, and phospholipids in such a way that they are involved in the regulation of the physical and chemical properties of membrane structure and functions of nucleic acids and modulation of enzyme activities (Galston and Sawhney 1990). In higher plants, PAs are mainly present in their free form. Putrescine (Put), spermidine (Spd), and spermine (Spm) are the main PAs in plants, and they are involved in many biochemical and physiological processes such as cell division, cell elongation, flowering, fruit set and development, fruit ripening, and senescence (Evans and Malmberg, 1989; International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 9 Number 6 (2020) Journal homepage: http://www.ijcmas.com As most of the fruits are highly perishable, short shelf life remains one of the major impediments in the market and to increasing international trade, despite several research efforts in the past to extend its storage life. A suitable method for shelf life extension, which avoids detrimental effects on quality of fruit, would be beneficial for both the consumer and the producer. One such strategy is use of postharvest treatments with polyamines. Polyamines (PAs) are biological compounds of low molecular weight with aliphatic nitrogen groups that are ubiquitous in living organisms, both animals and plants. The most common PAs are putrescine (Put), spermidine (Spd) and spermine (Spm). Polyamines (Spm, Spd, Put) and ethylene production are interrelated, since they share a common precursor (SAM). Therefore, there is a possibility that polyamines may regulate the process of fruit ripening and storage. The present paper reviews the effect of exogenous polyamine application on improving the shelf life and quality of fruits during storage. Keywords International trade, Storage life, Shelf life extension, Spermidine (spd) Accepted: 26 May 2020 Available Online: 10 June 2020 Article Info