Soil In-situ Enrichment Coupled with RPA-CRISPR/Cas12b for Rapid and Visual On-Site Detection of
Ying XY, Tang DL, Sun YM, Liu MQ, Feng XY
Summary
PubMedWhy it matters This matters because strawberry wilt can wipe out entire crops silently through the soil, and this new tool lets farmers catch it early enough to actually save their harvest.
A fungus called Fusarium oxysporum lives in soil and kills strawberry plants by infecting their roots — and it's notoriously hard to detect before it's too late. Researchers invented a stick you push into the soil that lures the fungus in, then you pull it out and run a quick test right there in the field using the same gene-editing technology behind COVID rapid tests. The whole process takes less than an hour and needs no electricity or fancy lab equipment, making it practical for real farmers in real fields.
chevron_right Technical Details
Scientists developed a portable, field-ready test that can detect a devastating strawberry soil fungus in under 40 minutes using a special enrichment rod and gene-editing technology — no lab required.
Key Findings
The enrichment rod achieves detection as low as 8.5 colony-forming units per gram of soil and 70 DNA copies, showing extremely high sensitivity.
After 48 hours of passive in-soil enrichment, the detection workflow from rod retrieval to result takes only 40 minutes, with less than 10 minutes of hands-on time.
The method bypasses the need for traditional nucleic acid extraction by using a rapid lysis buffer directly, eliminating interference from humic acids and other soil inhibitors that cause high false-negative rates in conventional tests.
Abstract Preview
Fusarium oxysporum is a representative soil-borne fungal pathogen that causes strawberry wilt, a disease characterized by an extremely high mortality rate that poses a severe threat to the sustaina...
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