名古屋大学 · 環境科学
カタヤマ教授の研究室は、環境中の有害化学物質である農薬や汚染物質の微生物的分解機構に注目し、特にDDTやペンタクロロフェノール（PCP）などの難分解性有機汚染物質を効率的に分解する真菌や細菌の機能を解明しています。特に、トリコデルマ・ハルジアナムによるエンドオスルファンの代謝経路や、嫌気的条件下でのPCPの脱塩素化と完全 mineralization の達成が特徴です。また、土壌中の微生物群集構造の変化をquinoneプロファイルでモニタリングする手法の開発も進んでいます。
Figures are computed from collected data and may differ slightly.
Abstract A fungus, Trichoderma harzianum, was found to degrade DDT, dieldrin, endosulfan, pentachloronitrobenzene, and pentachlorophenol but not hexachlorocyclohexane. The fungus degraded endosulfan under various nutritional conditions throughout its growth stages. Endosulfan sulfate and endosulfan diol were detected as the major fungal metabolites of endosulfan. Piperonyl butoxide, when added to the growth medium, completely inhibited the endosulfan degradation. Di-n-propyl malaoxon also inhibi
Abstract Quinone profile analysis of stored air-dried soils gave an approximation of the long-term changes in the microbial community structure in four soils subjected to different types of fertilizer application from 1987 to 1997: unfertilized soil (NF-soil), soil amended with chemical fertilizers (CF-soil), soil amended with chemical fertilizers and 40 t ha-1 y-1 of farmyard manure (CF+ FYM-soil), and soil amended with 400 t ha-1 y-1 of farmyard manure (FYM-soil). The carbon content increased,
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