Isolation and Characterization of 2,4,5-Trichlorophenoxyacetic Acid Degrading Bacteria

2,4,5-Trichlorophenoxyacetic Acid 분해균주의 분리 및 특성

  • Park, Yeong-Soon (Dept. of Microbiology, college of Natural Science, Pusan National University) ;
  • Lee, Geon (Dept. of Microbiology, college of Natural Science, Pusan National University) ;
  • Lee, Sang-Joon (Dept. of Microbiology, college of Natural Science, Pusan National University) ;
  • Lee, Jong-Kun (Dept. of Microbiology, college of Natural Science, Pusan National University)
  • 박영순 (부산대학교 미생물학과) ;
  • 이건 (부산대학교 미생물학과) ;
  • 이상준 (부산대학교 미생물학과) ;
  • 이종근 (부산대학교 미생물학과)
  • Published : 1994.09.01

Abstract

Microorganisms capable of utilizing 2,4,5-trichlorophenoxyacetic acid(2,4,5-T) as sole carbon source were isolated from soil by enrichment culture. Among these strains, EL-O7IP had the highest biodegradability of 2,4,5-7, and according to its morphological and physiological characteristics, it was identified as Pseudomonas sp. This strain was resistant to rifampicin, streptomycin, ampicillin, kanamycin and such metal ions as $Zn^{2+}$, $Cu^{2+}$ Various compounds of chlorinated phenol and substrate analogs were more easily utilized than 2,4,5-7, but biodegradation rate for each compound was different. The strain easily utilized the compounds of chlorinated substituents on phenol in the order of ortho-, para-, and meta- position. The biodegradability of this strain was very stable. Key words : 2,4,5- trichlorophenoxyacetic acid, Pseudomonas sp .

Keywords

2,4,5-trichlorophenoxyacetic acid;Pseudomonas sp.

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