Isolation and Characterization of Soil Streptomyces Involved in 2,4-Dichlorophenol Oxidation

  • Kang, Min-Jin (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Kang, Ja-Kyoung (Department of Environmental Science, Hankuk University of Foreign Studies) ;
  • Kim, Eung-Soo (Department of Environmental Science, Hankuk University of Foreign Studies)
  • Published : 1999.12.01

Abstract

Over 50 morphologically distinctive soil Streptomyces were isolated from various Jocations in the Yongin area in Korea and visually screened for dye-decoloring activities on an agar plate. Two Streptomyces species (AD001 and ND002) showed strong dye-decoloring activities on the plate containing congo-red and new-fuchin dyes, respectively. Also, the liquid culture supernatants of these species showed 2,4-dicholophenol (DCP) oxidation activities only in the presence of hydrogen peroxide, a characteristic of Actinomycetes lignin-peroxidase (ALiP)-P3 isoform found in dye-degrading S. viridosporus T7A and S. badius 252. Based on their dye-decoloring capabilities and the 2,4-DCP oxidation kinetic data, it is suggested that these Streptomyces secrete not-yet-characterized extracelluar enzyme(s), whose activities are very similar to the ALiP-P3 enzyme.

Keywords

References

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