Rapid and Cost-Effective On-site Detection of Plant Viruses Using Personal Glucose Meters Integrated with LAMP and Cascade Enzymatic Reactions
BioChip Journal(2024)
Abstract
This study presents a novel method for detecting plant viruses by combining a personal glucose meter (PGM)-based cascade enzymatic reaction (CER) with loop-mediated isothermal amplification (LAMP). This technique exploits the consumption of deoxynucleotides (dNTPs) during the LAMP process as a substrate for CER, leading to a measurable change in glucose concentration. This change can be detected using PGM, enabling the identification of the presence or absence of the target virus. This method provide a more efficient alternative to traditional methods like ELISA and PCR. It overcomes their limitation in terms of laboratory equipment requirement, sensitivity, and on-site applicability. In addition, we also developed a portable diagnostic device that integrates a heating block with a glucose measurement module. By utilizing this device, the rapid and precise detection of various plant viruses, including horseradish latent virus (HRLV), onion yellow dwarf virus (OYDV), soybean yellow common mosaic virus (SYCMV), cnidium vein yellowing virus 1 (CnVYV-1), and perilla mosaic virus (PerMV), successfully achieved within 40 min. This advancement offers a practical and cost-effective solution for managing plant pathogen threats in agriculture.
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Key words
Plant virus,Loop-mediated isothermal amplification,Cascade enzymatic reaction,On-site detection,Glucose meter
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