• Renu Joshi, Ph. D.

Role of Enzymes in Seed Germination



The seed germination is the process in which embryo found in the seed develops into plumule and radicle. Seeds absorb water and which swells the inactive tissues and start the cell division. The radicle arises from micropylar, which moves downward and into the soil. These radicles later on change into roots those provide supply of water and nutrients to the plants throughout their life. Enzymes such as amylase, protease, and lipase are liable for solubilizing spare food material in the form of starch, protein and lipid correspondingly in seed and deliver energy and other fundamentals food material to germinating embryo. The seed proteins are catalyzed by proteases enzymes and break it into amino acids and peptides that are transferred to growing embryo. The Amino acids obtained from the metabolism of the proteins are further used in the biosynthesis of enzymes, hormones, proteins, pyrimidines and purines bases. The starch is catalyzed by enzyme amylase that provides the food materials for growth and development of embryo. Similarly lipases are enzymes those are responsible for metabolism of the triacylglycerols into glycerol and fatty acids. This is also the source of energy for growing embryo. The further detail are available on my detailed article at IJCRT Journal

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