白色腐朽菌が医薬品残留物の環境拡散を防ぐ可能性(White-rot fungi may keep chemicals from reaching soil, crops, and people)

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2026-03-18 ジョンズ・ホプキンス大学(JHU)

ジョンズ・ホプキンス大学の研究は、白色腐朽菌が環境中の医薬品残留物を分解できることを示した。これらの菌は強力な分解酵素を持ち、水中に残る医薬品化合物を効率的に分解・無害化する能力がある。実験では複数の薬剤に対して高い除去効果が確認され、従来の処理方法では難しい汚染物質の除去に有効であることが示された。本研究は、水質浄化や環境保全に向けたバイオレメディエーション技術としての応用可能性を示し、持続可能な廃水処理の新たな手法として期待される。

<関連情報>

マジックマッシュルーム?バイオソリッド中の向精神性医薬品の白色腐朽菌による分解 Magic Mushrooms? White-Rot Fungal Degradation of Psychoactive Pharmaceuticals in Biosolids

Kate Burgener,and Carsten Prasse
ACS Environmental Au  Published: January 29, 2026
DOI:https://doi.org/10.1021/acsenvironau.5c00258

Abstract

白色腐朽菌が医薬品残留物の環境拡散を防ぐ可能性(White-rot fungi may keep chemicals from reaching soil, crops, and people)

Biosolids, the solid byproducts of wastewater treatment, are widely applied to soils to enhance nutrient levels and organic matter. However, their use raises environmental and human health concerns due to the presence of anthropogenic organic contaminants. As such, there is a need to develop treatment strategies that can help remove these compounds before biosolids are land applied. This study investigates the potential of two white-rot fungal species to remove nine psychoactive pharmaceuticals from biosolids. Each species degraded eight compounds, achieving removal efficiencies between 48 and 99% after 60 days. Pleurotus ostreatus nearly completely (>90%) degraded desvenlafaxine, trazodone, and citalopram, while Trametes versicolor achieved over 75% degradation of desvenlafaxine, trazodone, and lamotrigine. Liquid culture (without biosolids) and biosolid experiments tentatively identified 41 fungal transformation products (27 for P. ostreatus and 36 for T. versicolor), of which many were formed from cleavage, hydroxylation, or demethylation reactions. These findings demonstrate that white-rot fungi can effectively grow on biosolids and degrade sorbed psychoactive pharmaceuticals. Overall, the results highlight mycoaugmentation as a promising and sustainable approach for mitigating pharmaceutical contamination in biosolids prior to land application.

生物環境工学
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