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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제29권 제9호
- 발행연도
- 2019.1
- 수록면
- 1,424 - 1,433 (10page)
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초록· 키워드
오류제보하기
DDT is a hydrophobic organic pollutant, which can be bio-accumulated in nature and have adverse consequences on the physical condition of humans and animals. This study investigated the relationship between the white-rot fungus Pleurotus eryngii and biosurfactantproducing bacterium Ralstonia pickettii associated with the degradation of DDT. The effects of R. pickettii on fungal development were examined using in vitro confrontation assay on a potato dextrose agar (PDA) medium. R. pickettii culture was added to the P. eryngii culture at 1, 3, 5, 7, and 10 ml (1 ml ≈ 1.44 × 1013 CFU). After 7 d incubation, about 43% of the initial DDT (12.5 μM) was degraded by the P. eryngii culture only. The augmentation of 7 ml of R. pickettii culture revealed a more highly optimized synergism with DDT degradation being approximately 78% and the ratio of optimization 1.06. According to the confrontational assay, R. pickettii promoted the growth of P. eryngii towards the bacterial colony, with no direct contact between the bacterial cells and mycelium (0.71 cm/day). DDD (1,1-dichloro-2,2-bis(4- chlorophenyl) ethane), DDE (1,1-dichloro-2,2-bis(4-chlorophenyl) ethylene), and DDMU (1- chloro-2,2-bis(4-chlorophenyl) ethylene) were identified as metabolic products, indicating that the R. pickettii could enhance the DDT biodegradation by P. eryngii.
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참고문헌 (75)
참고문헌 신청
Sudaryanto A / 2007 / Persistent toxic substances in the environment of Indonesia / Dev. Environ. Sci 7:587~627
Kinuthia M / 2010 / Degradation of dichlorodiphenyltrichloroethane(DDT)by bacterial isolates from cultivated and uncultivated soil / Afr. J. Microbiol. Res 4:185~196
Tsakiris IN / 2015 / Risk assessment for children exposed to DDT residues in various milk types from the Greek market / Food Chem. Toxicol 75:156~165
Chu W / 1999 / Photodechlorination mechanism of DDT in a UV/Surfactant system / Environ. Sci. Technol 33:421~425
Matsunaga A / 2005 / Dechlorination of polychlorinated organic compounds by electrochemical reduction with naphthalene radical anion as mediator / Chemosphere 59:1487~1496
Kinuthia M / 2010 / Degradation of dichlorodiphenyltrichloroethane(DDT)by bacterial isolates from cultivated and uncultivated soil / Afr. J. Microbiol. Res 4:185~196
Tsakiris IN / 2015 / Risk assessment for children exposed to DDT residues in various milk types from the Greek market / Food Chem. Toxicol 75:156~165
Chu W / 1999 / Photodechlorination mechanism of DDT in a UV/Surfactant system / Environ. Sci. Technol 33:421~425
Matsunaga A / 2005 / Dechlorination of polychlorinated organic compounds by electrochemical reduction with naphthalene radical anion as mediator / Chemosphere 59:1487~1496
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