| Summary: | abstract: Plant pathogens are the important yield-limiting factors, which significantly reduce crop productivity globally, posing serious problems for food security and continues to be the biggest agricultural concern in the world. Even though chemical treatment is still the primary strategy for reducing the incidence of plant disease, their repeated application can cause the pathogens to become less susceptible. Over spraying can also pollute the environment and significantly affect soil microbiota. Therefore, to ensure agricultural sustainability and food security, efficient diagnostic techniques for the rapid identification of plant pathogens in the early stages of infection become crucial. Many molecular approaches for rapid plant pathogen detection have been developed to achieve this goal. However, they are time-consuming, costly, require skilled operators, and are generally unsuitable for in-situ analysis. Plant protection is feasible when any of the nanotechnology tools like microneedle patches, nanopore sequencing, nano barcoding, nano biosensors, quantum dots, nano diagnostic kit equipment, metal nanoparticles, miRNA based nanodiagnosis, and array based nano sensors is used for plant pathogen diagnosis. As they emerge as a potential tool to improve the sensitivity, accuracy, and rapidness of plant pathogen identification, and facilitate high-throughput analysis. The current review focuses on the use of nanotechnology for more quick, inexpensive, and accurate plant pathogens diagnosis.
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