Abstract
The objective of this review is to critically study the role of silver nitrate (AgNO3) and silver nanoparticles (Ag NPs) in changing plant growth and development. In recent years, basic studies on ethylene regulation opened novel outlooks for applied research in the field of micropropagation, somatic embryogenesis, and secondary metabolites production. Silver nitrate has evidenced to be a very effective inhibitor of ethylene action and is widely used in plant tissue culture. Nanotechnology opens a large scope of novel application in the field of biotechnology and agricultural, because nanoparticles (NPs) have unique physicochemical properties. Plant tissue cultures are the core of plant biology, which is important for conservation, mass propagation, genetic manipulation, bioactive compounds production, and plant improvement. Nowadays, the application of silver nanoparticles (Ag NPs) has successfully controlled the microbial contaminants from explants and proved the positive role of Ag NPs in callus induction, organogenesis, somatic embryogenesis, somaclonal variation, genetic transformation, and secondary metabolites production. Therefore, the present chapter highlights the significant role of AgNO3 and Ag NPs in plant growth and development. Also, nanoscience contributes new ideas leading us to understand the suitable mode of action of nanoparticles in plants which lead to better plant growth and development.
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