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KMID : 0545119990090060877
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Journal of Microbiology and Biotechnology
1999 Volume.9 No. 6 p.877 ~ p.880
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Isolation and Characterization of Soil Streptomyces Involved in 2,4-Dichlorophenol Oxidation
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Kang, Min Jin
Kang, Ja KYoung/Kim, Eung Soo
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Abstract
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Over 50 morphologically distinctive soil Streptomyces were isolated from various locations 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.
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