新規複合微生物群集積木質炭化素材による塩素化およびメチルチオ化トリアジンの微生物同時分解 Simultaneous biodegradation of chloro- and methylthio-s-triazines using charcoal enriched with a newly developed bacterial consortium

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Author(s)

Abstract

木質炭化素材A100内に木炭還流法を用いて,新規複合微生物群を集積させた.この新規微生物群は,メチルチオ化トリアジン分解菌(Rhodococcus sp. FJ1117YT株)と塩素化トリアジン分解菌群CD7(Bradyrhizobium japonicam CSB1株,Arthobacter sp. CD7w株,塩素化トリアジン分解菌β-Proteobacteria CDB21株)で構成される.この集積炭化素材により塩素化トリアジン(シマジン,アトラジン)とメチルチオ化トリアジン(シメトリン,ジメタメトリン)はsulfur-free培地において同時に分解され,塩素化トリアジンは培養4日後に,メチルチオ化トリアジンは培養9日後にほぼ完全に分解された.これらのトリアジン系農薬は2-ヒドロキシ体を経て無機化された.

A special type of charcoal, Charcoal A100, was enriched with a newly developed bacterial consortium using a perfusion method. The bacterial consortium consisted of a methylthio-s-triazine-de-grading bacterium (Rhodococcus sp. FJ1117YT) and the chloro-s-triazine-degrading bacterial consortium CD7 (containing Bradyrhizobium japonicam CSB1, Arthrobacter sp. CD7w and β-Proteobacteria CDB21). Enriched charcoal was capable of degrading chloro-s-triazines (simazine and atrazine) and methylthio-s-triazines (simetryn and dimethametryn) simultaneously in sulfur-free medium. Almost complete degradation was observed after 4-day cultivation of chloro-s-triazines and 9-day cultivation of methylthio-s-triazines. These triazines were mineralized via their 2-hydroxy analogues.

Journal

  • Journal of pesticide science

    Journal of pesticide science 33(3), 266-270, 2008-08-20

    日本農薬学会

References:  13

Codes

  • NII Article ID (NAID)
    110006879105
  • NII NACSIS-CAT ID (NCID)
    AA11818622
  • Text Lang
    ENG
  • Article Type
    NOT
  • ISSN
    1348589X
  • NDL Article ID
    9625339
  • NDL Source Classification
    ZR7(科学技術--農林水産--農産)
  • NDL Call No.
    Z18-1132
  • Data Source
    CJP  NDL  NII-ELS  IR  NDL-Digital 
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