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Generally, advancements in various branches of science and technology have had a significant impact on various aspects of
plant pathology like efficient pathogen detection. Nanotechnology is found to have many applications of which plant
pathology is the one important field. In recent years, nanotechnology has been increasingly applied to the development of
novel antimicrobials for the management of pathogenic bacteria affecting agricultural crops. This review discusses the
applications of different nanoparticles in plant disease management and their mode of action against the bacteria. The
synthesis of nanoparticles (NPs) using biomolecules (protein, enzyme, DNA and plant extracts) have opened a new
avenue of research in green nanobiotechnology. They are proved to be effective, cheap and eco-friendly in combating
microbes. Reactive oxygen species production, lipid peroxidation, protein oxidation, ATP depletion and DNA
degradation are some of the mechanisms by which nanomaterials used to kill bacteria.
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