Nanoparticle-rhizosphere crosstalk: Insights into transformation, microbial interaction, plant uptake and translocation.
Haydar MS, Alzate Zuluaga MY, Astolfi S, Del Buono D, Cesco S
Soil Health
PubMedNanoparticles are already being tested in fertilizers and pesticides, so understanding how they move from soil into the vegetables on your plate is urgent, practical knowledge.
Scientists are using engineered nanoparticles to improve farming — delivering nutrients or fighting disease — but once these tiny particles hit the soil near plant roots, they change dramatically. Bacteria, root fluids, and soil chemistry reshape them before plants can absorb them, and those changes affect whether the particles help, harm, or do nothing. This review pulls together what we know about that journey, from soil to root to stem, and calls for better safety testing before widespread use.
Key Findings
Nanoparticles near roots undergo multiple transformations — including dissolving into ions, clumping together, and getting coated by biological molecules — before plants can take them up, meaning the original particle form rarely tells the full story of its impact.
Once inside a plant, nanoparticles travel via at least four distinct pathways (including through cell walls, cell membranes, tiny pores between cells, and the plant's vascular system), and continue chemically changing inside the plant tissue.
A three-way molecular conversation among nanoparticles, soil microbes, and plant signaling networks actively reshapes root architecture and nutrient uptake efficiency, suggesting nanoparticles can indirectly alter how crops grow beyond direct toxicity effects.
chevron_right Technical Summary
Tiny engineered particles added to farm soil don't just sit there — they get transformed by root secretions, soil microbes, and chemistry before plants absorb them. This review maps out exactly how those transformations happen and what they mean for crop safety and sustainable farming.
Abstract Preview
For soil-applied engineered nanomaterials, the rhizosphere is the critical frontline zone where they encounter crop roots, microbes, and soil, determining their agronomic potential and environmenta...
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