Nanoplastics interfere with plant-mycorrhizal communication and limit plant growth.
Li HH, Chen XW, Xing MG, Zhao YX, Zhang MM
Soil Health
Microplastics breaking down in your garden soil are quietly strangling the beneficial fungi that help your vegetables absorb phosphorus and other nutrients, meaning your plants could be quietly starving even in well-fertilized beds.
Most land plants, including corn and many garden vegetables, rely on underground fungi as nutrient-delivery partners — the fungi extend their thread-like bodies through soil to gather phosphorus and trade it to plant roots for sugar. Scientists found that tiny plastic particles coating soil interfere with this partnership at every stage: the fungi can't germinate properly, their cells are damaged from the inside, and far fewer nutrient-gathering structures form inside plant roots. The end result is plants that absorb significantly less phosphorus and grow more poorly, even when soil nutrients are technically available.
Key Findings
Nanoplastics coated fungal spore surfaces and blocked symbiotic chemical signals, cutting spore germination rates by 48%.
Plastic particles that entered fungal cells damaged organelles and accelerated cell aging, reducing hyphal branching length by 22% and spore production by 32%.
The cumulative disruption slashed phosphorus in maize shoots by 20% and reduced the soil bacteria-driven phosphorus mineralization cycle, compromising overall plant performance.
chevron_right Technical Summary
Nanoplastics accumulating in soil sabotage the underground fungal partnerships that most plants depend on for nutrients, reducing phosphorus absorption in corn by 20% and impairing plant growth across every phase of the relationship — from the moment fungi try to germinate to the final delivery of nutrients to roots.
Abstract Preview
More than 80% of land plants form symbiotic relationships with arbuscular mycorrhizal (AM) fungi for nutrient uptake. As emerging soil pollutants, nanoplastics (NPs) accumulate in both crop and AM ...
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