Scientists map how a toxic mold invades peanut crops
Trinh LL, Nguyen HH
Crop Improvement
If you grow peanuts in a garden bed or buy peanut butter at the store, this mold is the reason some batches get pulled from shelves for toxin contamination.
A mold called Aspergillus flavus lives in soil and infects peanut plants, spreading through wind and insects to cause yellow mold disease. Worse, it produces aflatoxins, some of the most dangerous natural cancer-causing chemicals known, which can end up in peanut products. Researchers are working on breeding tougher peanut varieties, using harmless fungal strains to crowd out the toxic ones, and building faster field tests to catch contamination before it reaches your pantry.
Key Findings
A. flavus uses GPCR receptors, cAMP/PKA signaling, and three MAPK pathways to sense host plant lipids and trigger infection and toxin production
Diagnostic tools range from visual inspection to advanced molecular methods including PCR, qPCR, and LAMP for field-deployable detection
Biocontrol using non-aflatoxigenic A. flavus strains shows promise but some strains may still harm plants independent of aflatoxin production
chevron_right Technical Summary
A fungus called Aspergillus flavus attacks peanut plants and produces cancer-causing toxins called aflatoxins, threatening both crop yields and food safety worldwide. Scientists are combining better detection tools, resistant peanut varieties, and biological pest control to fight back, though no single fix works completely.
Abstract Preview
Original paper
Aspergillus flavus-peanut (Arachis hypogaea L.) interactions: pathogenesis, diagnosis, and sustainable management of yellow mold disease.
Aspergillus flavus is a globally significant threat to peanut (Arachis hypogaea L.) production, causing yellow mold disease and contaminating crops with carcinogenic aflatoxins. This review synthes...
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