Degradation of dimethyl carboxylic phthalate ester by Burkholderia cepacia DA2 isolated from marine sediment of South China Sea
Wang, Y; Yin, B; Hong, YG; Yan, Y; Gu, JD; jdgu@hkucc.hku.hk
2008
发表期刊ECOTOXICOLOGY
ISSN0963-9292
卷号17期号:8页码:845-852
摘要Burkholderia cepacia DA2, isolated from marine sediment of the South China Sea, is capable of utilizing dimethyl phthalate (DMP) as the sole source of carbon and energy. During the transformation of DMP in batch culture, its corresponding degradation intermediates were identified as monomethyl phthalate (MMP) and phthalate acid (PA) sequentially over the time of incubation. The biodegradation biochemical pathway of DMP was DMP to MMP and then to PA before mineralization. Degradation of DMP by B. cepacia DA2 was also dependent upon DMP-induction, and the initial concentrations of DMP affected the degradation rate. Degradation kinetics fit well with the modified Gompertz model. The optimum pH and salinity was 6.0 and <5 parts per thousand, respectively, for DMP degradation by B. cepacia DA2. This study showed that the indigenous microorganisms of the deep-ocean sediments are capable of DMP degradation completely.
部门归属[Gu, Ji-Dong] Univ Hong Kong, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China; [Wang, Yali; Yin, Bo; Hong, Yiguo; Yan, Yan] Chinese Acad Sci, S China Sea Inst Oceanog, Key Lab Trop Marine Environm Dynam LED, Guangzhou 510301, Guangdong, Peoples R China
关键词Dimethyl Phthalate Degradation Pathway Endocrine-disrupting Burkholderia Deep-ocean Sediments
学科领域Ecology ; Environmental Sciences ; Toxicology
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收录类别sci
资助项目LED
WOS记录号WOS:000260157800016
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5951
专题热带海洋环境国家重点实验室(LTO)
通讯作者jdgu@hkucc.hku.hk
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Wang, Y,Yin, B,Hong, YG,et al. Degradation of dimethyl carboxylic phthalate ester by Burkholderia cepacia DA2 isolated from marine sediment of South China Sea[J]. ECOTOXICOLOGY,2008,17(8):845-852.
APA Wang, Y,Yin, B,Hong, YG,Yan, Y,Gu, JD,&jdgu@hkucc.hku.hk.(2008).Degradation of dimethyl carboxylic phthalate ester by Burkholderia cepacia DA2 isolated from marine sediment of South China Sea.ECOTOXICOLOGY,17(8),845-852.
MLA Wang, Y,et al."Degradation of dimethyl carboxylic phthalate ester by Burkholderia cepacia DA2 isolated from marine sediment of South China Sea".ECOTOXICOLOGY 17.8(2008):845-852.
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