都市部に生息する非作物植物は,蜜蜂にとって,グリホサートへの継続的な暴露の経路を提供する
Changsheng Ma1, Sihao Chen2, Xiaoyu Shi3
1Key laboratory of Pesticide Assessment, Ministry of Agriculture and Rural Affairs, Hunan Academy of Agricultural Sciences, Changsha 410125, China; Yuelushan Laboratory, Changsha 410082, China.
Journal of hazardous materials
|February 13, 2026
まとめ
都市部におけるグリホサート除草剤の汚染は,非作物植物を通してミツバチに影響します. 残留物は花粉の83.1%のサンプルで発見され,都市化との複雑な関連が示され,受粉者の健康に影響を与えました.
科学分野:
- 環境科学 環境科学
- 生態毒理学 エコトキシコロジ
- 都市生態学 都市生態学
背景:
- グリホサートは広く使用されている除草剤で,ハチミツへの影響は主に農業地域で研究されています.
- 都市緑地は,受粉者の避難所として機能しますが,除草剤の汚染源にもなります.
- 農作物以外の都市植物の経由によるグリホサートの受粉者への暴露経路は十分に研究されていない.
研究 の 目的:
- ミツバチが都市部の非作物植物から採集した花粉に含まれるグリホサート残留物を調査する.
- グリホサート汚染と都市化レベルとの関係を評価する.
- 都市環境でミツバチのグリホサートへの季節的曝露を理解する.
主な方法:
- 花粉サンプルは,中国のスズーにある都市化グラデーションの横断で蜂の採集者から採取されました.
- DNAメタバーコーディングにより,花粉源が特定されました.
- 液体染色体-タンデム質量スペクトロメトリー (LC-MS/MS) による数値化されたグリホサート残留物.
主要な成果:
- グリホサートは花粉の83.1%のサンプルで検出され,濃度は最大880μg/kgであった.
- グリホサート濃度は,都市化と非線形的な関係を示した.
- グリホサートの存在と花粉の多様性との間に有意な相関は見つかりませんでした.
結論:
- 非作物都市植生は,蜜蜂のグリホサート暴露の一貫した,季節の長い源として機能します.
- 都市植生と除草剤の管理戦略は,受粉者の健康を考慮する必要があります.
- 調査結果は,受粉者の保全のために,都市部での除草剤汚染のモニタリングの重要性を強調しています.
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