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Pentachlorophenol 분해세균의 분리 및 특성
이형구,조홍범,민병례,최영길 ( Hyeong Goo Lee,Hong Bum Cho,Byeong Rye Min,Yong Keel Choi ) 한국환경생물학회 1995 환경생물 : 환경생물학회지 Vol.13 No.1
Chlorinated phenolic compounds are widely used for pesticide or biocide. Especially, pentachlorophenol (PCP) among chlorinated phenolic compounds is a sort of recalcitrant biocide used primarily for wood preservation, which ubiquitous in the environment, and considered a priority toxic pollutant by the U.S. Environmental Protection Agency (EPA). The PCP degrading bacteria were isolated from the herbicides treated soil and the plants` wastewater by the enrichment culture method and identified as Pseudomonas paucimobilis. When the isolate was inoculated into PAS medium containing 20㎍/㎖ of PCP and 1% glucose, the substrate (PCP) was degraded more than 99% within 26 hours. The optimum temperature and pH are 30℃ and 7.3, respectively. From the plasmid curing test it was known to that PCP degrading genes are located in bacterial plasmid and that the plasmid contained several antibiotic resistant loci in its structure. From the SDS-PAGE experiment it turned out that two bands induced by treatment of PNP were cytoplasmic and periplasmic proteins corresponding to Mw. 27,000 and 42,000, respectively.