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  • Screening and degradation characteristics of a DDT-degrading bacteria.

    Author(s) : Feng YuXueMao ZhenLüMengMeng

    Author Affiliation : School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China.

    Author Email : mzhen80@163.com

    Journal article : China Environmental Science 2018 Vol.38 No.5 pp.1935-1942 ref.38

    Abstract : DDTddtSubject Category: Chemicals and Chemical Groups
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    was used as the target pollutant, and a strain capable of degrading DDT was obtained by isolation and the identificationidentificationSubject Category: Techniques, Methodologies and Equipment
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    of the strain was carried out through morphological observation, experiments on physiological and biochemical characteristicscharacteristicsSubject Category: Properties
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    and 16S rRNA sequencing. The strain was identified as Methylovorus, and named as Methylovorus sp. XLL03. The best growing condition for the strain was as follow:pH of 7, 30°C, external carboncarbonSubject Category: Chemicals and Chemical Groups
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    source concentration of 0.5%, and initial DDT concentration of 20 mg/L. The best degradationdegradationSubject Category: Miscellaneous
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    condition for the strain was as follow: pH of 6, 30°C, external carbon source(glucose) concentration of 0.1%, and initial DDT concentration of 20 mg/L. Under the optimized conditions, the highest degradation rate of DDT by strain XLL03 was 50.4% 4 days later. The qualitative analysisanalysisSubject Category: Techniques, Methodologies and Equipment
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    of degradation intermediates of DDT was carried out by GC-MS. It was initially concluded that DDT could first be transformed into DDD and DDEddeSubject Category: Chemicals and Chemical Groups
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    via dechlorination and dehydrochlorination respectively, subsequently both DDD and DDE converted to DDMU by further dechlorination, and then after ring opened, DDMU went through a series of reactions was completely mineralized. No metabolic intermediates was found during the metabolismmetabolismSubject Category: Natural Processes
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    of DDT, which indicating that strain XLL03 has potential application prospects in repairing DDT-contaminated water or soil.

    ISSN : 1000-6923

    URL : http://manu36.magtech.com.cn/Jweb_zgh...

    Record Number : 20183307301

    Publisher : Editorial Board of China Environmental Science

    Location of publication : Beijing

    Country of publication : China

    Language of text : Chinese

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : BacteriabacteriaSubject Category: Organism Names
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    Descriptor(s) : analysisanalysisSubject Category: Techniques, Methodologies and Equipment
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    , biodegradationbiodegradationSubject Category: Miscellaneous
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    , carboncarbonSubject Category: Chemicals and Chemical Groups
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    , characteristicscharacteristicsSubject Category: Properties
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    , DDEddeSubject Category: Chemicals and Chemical Groups
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    , DDTddtSubject Category: Chemicals and Chemical Groups
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    , degradationdegradationSubject Category: Miscellaneous
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    , environmentenvironmentSubject Category: Miscellaneous
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    , identificationidentificationSubject Category: Techniques, Methodologies and Equipment
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    , metabolismmetabolismSubject Category: Natural Processes
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    , morphologymorphologySubject Category: Miscellaneous
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    , pollutantspollutantsSubject Category: Miscellaneous
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    , pollutionpollutionSubject Category: Miscellaneous
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    , ribosomal RNAribosomal rnaSubject Category: Chemicals and Chemical Groups
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    , screeningscreeningSubject Category: Techniques, Methodologies and Equipment
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    Identifier(s) : bacterium, DDD, dechlorination, dicophane, environmental pollution, p,p'-dichlorodiphenyldichloroethylene, rRNA, screening tests

    Broader term(s) : prokaryotesprokaryotesSubject Category: Organism Names
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