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Influencing mechanisms of hematite on benzo(a)pyrene degradation by the PAH-degrading bacterium Paracoccus sp. Strain HPD-2: insight from benzo (a)pyrene bioaccessibility and bacteria activity
Gan, Xinhong1,2; Teng, Ying1,2; Zhao, Ling1; Ren, Wenjie1; Chen, Wei1; Hao, Jialong3; Christie, Peter1; Luo, Yongming1,2
2018-10-05
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume359Pages:348-355
AbstractIron oxides are reactive inorganic soil components that play an important role in the fate and transport of organic pollutants. Here, hematite was selected to investigate its effect on the biodegradation of benzo[a]pyrene (BaP) by Paracoccus sp. strain HPD-2. Approximately 60% of the total BaP was degraded in the absence of hematite after 7 days but only 30.8 and 20.8% of that was degraded after the addition of 10 and 20 mg mL(-1) hematite, respectively, indicating that the addition of hematite could significantly inhibit the biodegradation of BaP (P < 0.05). The hematite also lowered bacterium activity by coating the cells and by generating reactive oxygen species that destroyed the cells. Two-photon confocal laser scanning microscope images showed that the addition of hematite substantially decreased the amount of BaP combined with the bacterium, and this also enabled us to observe directly the migration and regression of BaP in the interaction between HPD-2 and hematite. Higher death ratio of HPD-2 might lower the Bar, access to live cells because dead cells have a higher adsorption affinity for BaP than live cells. These observations enhance our understanding of the mechanisms by which metal oxides, organic pollutants and degrading-bacteria interact during the biodegradation process.
KeywordPAHs Hematite Degrading bacteria Interface mechanism Nano-SIMS
DOI10.1016/j.jhazmat.2018.07.070
Funding OrganizationNatural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; ORGANIC-MATTER ; CLAY-MINERALS ; ANTIBACTERIAL ACTIVITY ; PSEUDOMONAS-PUTIDA ; SOIL ; BIOREMEDIATION ; ADSORPTION ; PENTACHLOROPHENOL ; CONTAMINANTS
Language英语
Funding ProjectNatural Science Foundation of Jiangsu province[BK20150049] ; Chinese National Key Research and Development Program[2017YFA0207001] ; National Natural Science Foundation of China[41401565] ; National Natural Science Foundation of China[41571308]
Funding OrganizationNatural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu province ; Natural Science Foundation of Jiangsu province ; Chinese National Key Research and Development Program ; Chinese National Key Research and Development Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000446794400039
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/89161
Collection地球与行星物理院重点实验室
Corresponding AuthorTeng, Ying
Affiliation1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Gan, Xinhong,Teng, Ying,Zhao, Ling,et al. Influencing mechanisms of hematite on benzo(a)pyrene degradation by the PAH-degrading bacterium Paracoccus sp. Strain HPD-2: insight from benzo (a)pyrene bioaccessibility and bacteria activity[J]. JOURNAL OF HAZARDOUS MATERIALS,2018,359:348-355.
APA Gan, Xinhong.,Teng, Ying.,Zhao, Ling.,Ren, Wenjie.,Chen, Wei.,...&Luo, Yongming.(2018).Influencing mechanisms of hematite on benzo(a)pyrene degradation by the PAH-degrading bacterium Paracoccus sp. Strain HPD-2: insight from benzo (a)pyrene bioaccessibility and bacteria activity.JOURNAL OF HAZARDOUS MATERIALS,359,348-355.
MLA Gan, Xinhong,et al."Influencing mechanisms of hematite on benzo(a)pyrene degradation by the PAH-degrading bacterium Paracoccus sp. Strain HPD-2: insight from benzo (a)pyrene bioaccessibility and bacteria activity".JOURNAL OF HAZARDOUS MATERIALS 359(2018):348-355.
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