Role of Gold Nanoparticles in Plant Protection Against Pathogen

Numerous pathogens attack agricultural crops and cause enormous economic damage. To manage plant diseases, chemical pesticides, and fungicides have drawbacks, such as the development of resistance, environmental damage, and unfavorable impacts. To protect plants from infections, scientists and researchers are looking for more sustainable alternatives. Gold nanoparticles (AUNPs) are ideal for various applications, including medicine, electronics, and agriculture, due to their distinct physical and chemical properties. AuNPs have become a potentially effective substitute for plant pathogen resistance. In addition to possessing both direct and indirect antibacterial activity against plant diseases, it has been demonstrated that AuNPs can improve plant growth and stress resistance. The purpose of this chapter is to provide a recent update on how AuNPs help plants defend themselves against diseases.