Field-deployable CRISPR-cas variants for rapid on-site detection of plant pathogens.
Saini H, Yadav J, Pandey S, Kumar A, Nanda D
Crispr
Faster disease detection means farmers and growers can catch outbreaks before they spread, protecting the vegetables, fruits, and crops you rely on at the grocery store and farmers market.
Researchers built three different handheld testing tools that use the same CRISPR technology famous for gene editing, but repurposed here as a kind of molecular 'search and find' for disease-causing germs on plants. Instead of sending a sick plant sample to a faraway lab and waiting days, a farmer or crop inspector could get a reliable yes-or-no answer right in the field within half an hour. The tests work for both bacterial and viral plant diseases, are highly sensitive, and the team also tackled real-world problems like how to keep the test ingredients stable in hot or humid conditions.
Key Findings
Detection limits of 1–100 copies per microliter were achieved, matching conventional PCR lab tests in sensitivity.
All three assay formats delivered results within 20–45 minutes, far faster than standard laboratory diagnostics.
Three distinct platforms were validated: a lateral-flow strip test for DNA pathogens, an RNA virus assay, and an amplification-free electrochemical biosensor for portable lab settings.
chevron_right Technical Summary
Scientists developed three portable, fast-testing kits using CRISPR gene-editing technology to detect plant diseases in the field — no lab required. These tools can identify pathogens in under 45 minutes with accuracy rivaling standard lab tests.
Abstract Preview
Rapid, field-deployable diagnostics are essential for effective plant disease management. Although CRISPR-Cas systems offer high sensitivity and programmability, their use in on-site plant pathogen...
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