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Plant-and-bacteria teamwork removes 98% of oil pollutants from soil

PubMed · 2026-10-17

Scientists paired a flowering legume plant with a custom-built team of oil-eating bacteria and a soap-like biosurfactant to clean up crude oil-contaminated soil, removing up to 98% of cancer-linked pollutants in just 90 days while helping soil health bounce back.

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Up to 98.3% of polycyclic aromatic hydrocarbons (PAHs) and 94.7% of total petroleum hydrocarbons (TPH) were removed after 90 days

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PAH-associated ecological risk decreased significantly, with GC-MS showing reduced aliphatic/aromatic hydrocarbons and new oxidized breakdown products

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Soil enzymatic activity increased and rhizosphere bacterial communities shifted, with predicted functional pathways tied to xenobiotic and hydrocarbon metabolism

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