3種藻類におけるフェニトロチオンの濃縮と代謝

DOI NDLデジタルコレクション 日本農学文献記事索引 Web Site Web Site 被引用文献1件

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タイトル別名
  • Accumulation and Metabolism of Fenitrothion in Three Species of Algae
  • 3種藻類におけるフェニトロチオンの濃縮と代謝〔英文〕
  • 3シュ ソウルイ ニ オケル フェニトロチオン ノ ノウシュク ト タイシャ

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抄録

Chlorella vulgaris, Nitzschia closterium and Anabaena flos-aquae rapidly absorbed fenitrothion, O, O-dimethyl O-(3-methyl-4-nitrophenyl) phosphorothioate, from medium, and the maximum bioaccumulation ratio in terms of dry weight was 44, 105 and 53, respectively. On transference of these algae to fenitrothion-free medium, the concentrations of 14C and fenitrothion decreased rapidly, with half-lives of 1-15hr and 1-2.6hr, respectively. A. flos-aquae metabolized fenitrothion most actively to its oxon and demethyl analogs and its phenol, whereas C. vulgaris decomposed the chemical not to the oxon analogs, but to demethylfenitrothion. In contrast, DDT showed higher accumulation ratios of 433-82, 000 and longer halflives of 17-201hr under similar conditions.

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