IHB OpenIR  > 水环境工程研究中心  > 期刊论文
Natural attenuation of contaminated marine sediments from an old floating dock Part II: Changes of sediment microbial community structure and its relationship with environmental variables
Wang, Ya-Fen1,2; Tam, Nora Fung-Yee1; Tam, NFY (reprint author), City Univ Hong Kong, Dept Biol & Chem, Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China.
2012-04-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume423Issue:-Pages:95-103
AbstractChanges of microbial community structure and its relationship with various environmental variables in surface marine sediments were examined for a one-year period after the removal of an old floating dock in Hong Kong SAR, South China. Temporal variations in the microbial community structure were clearly revealed by principal component analysis (PCA) of the microbial ester-linked fatty acid methyl ester (EL-FAME) profiles. The most obvious shift in microbial community structure was detected 6 months after the removal of the dock, although no significant decline in the levels of pollutants could be detected. As determined by EL-FAME profiles, the microbial diversity recovered and the predominance of gram-negative bacteria was gradually replaced by gram-positive bacteria and fungi in the impacted stations. With redundancy analysis (RDA), the concentration of total polycyclic aromatic hydrocarbons (PAHs) was found to be the second important determinant of microbial community structure, next to Time. The relative abundance of 18:1 omega 9c and hydroxyl fatty acids enriched in the PAH hot spots, whereas 16:1 omega 9 and 18:1 omega 9t were negatively correlated to total PAH concentration. The significant relationships observed between microbial EL-FAME profiles and pollutants, exampled by PAHs in the present study, suggested the potential of microbial community analysis in the assessment of the natural attenuation process in contaminated environments. (C) 2012 Elsevier B.V. All rights reserved.; Changes of microbial community structure and its relationship with various environmental variables in surface marine sediments were examined for a one-year period after the removal of an old floating dock in Hong Kong SAR, South China. Temporal variations in the microbial community structure were clearly revealed by principal component analysis (PCA) of the microbial ester-linked fatty acid methyl ester (EL-FAME) profiles. The most obvious shift in microbial community structure was detected 6 months after the removal of the dock, although no significant decline in the levels of pollutants could be detected. As determined by EL-FAME profiles, the microbial diversity recovered and the predominance of gram-negative bacteria was gradually replaced by gram-positive bacteria and fungi in the impacted stations. With redundancy analysis (RDA), the concentration of total polycyclic aromatic hydrocarbons (PAHs) was found to be the second important determinant of microbial community structure, next to Time. The relative abundance of 18:1 omega 9c and hydroxyl fatty acids enriched in the PAH hot spots, whereas 16:1 omega 9 and 18:1 omega 9t were negatively correlated to total PAH concentration. The significant relationships observed between microbial EL-FAME profiles and pollutants, exampled by PAHs in the present study, suggested the potential of microbial community analysis in the assessment of the natural attenuation process in contaminated environments. (C) 2012 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordMicrobial Community El-fame Analysis Pah Natural Attenuation Ordination Analysis
Department[Wang, Ya-Fen; Tam, Nora Fung-Yee] City Univ Hong Kong, Dept Biol & Chem, Hong Kong, Hong Kong, Peoples R China; [Wang, Ya-Fen] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Peoples R China
DOI10.1016/j.scitotenv.2012.01.066
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationUniversity Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004] ; University Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004] ; University Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004] ; University Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000303231200012
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; FATTY-ACID PROFILES ; SUBSTRATE UTILIZATION PATTERNS ; HEAVY-METAL CONTAMINATION ; SEASONAL-VARIATION ; LIPID ANALYSIS ; SOIL ; BIOMASS ; BACTERIAL ; BIOREMEDIATION
Funding OrganizationUniversity Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004] ; University Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004] ; University Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004] ; University Grants Committee of the Hong Kong SAR, China[AoE/P-04/2004]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17009
Collection水环境工程研究中心_期刊论文
Corresponding AuthorTam, NFY (reprint author), City Univ Hong Kong, Dept Biol & Chem, Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China.
Affiliation1.City Univ Hong Kong, Dept Biol & Chem, Hong Kong, Hong Kong, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Peoples R China
Recommended Citation
GB/T 7714
Wang, Ya-Fen,Tam, Nora Fung-Yee,Tam, NFY . Natural attenuation of contaminated marine sediments from an old floating dock Part II: Changes of sediment microbial community structure and its relationship with environmental variables[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2012,423(-):95-103.
APA Wang, Ya-Fen,Tam, Nora Fung-Yee,&Tam, NFY .(2012).Natural attenuation of contaminated marine sediments from an old floating dock Part II: Changes of sediment microbial community structure and its relationship with environmental variables.SCIENCE OF THE TOTAL ENVIRONMENT,423(-),95-103.
MLA Wang, Ya-Fen,et al."Natural attenuation of contaminated marine sediments from an old floating dock Part II: Changes of sediment microbial community structure and its relationship with environmental variables".SCIENCE OF THE TOTAL ENVIRONMENT 423.-(2012):95-103.
Files in This Item:
File Name/Size DocType Version Access License
Natural attenuation (666KB) 开放获取--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Ya-Fen]'s Articles
[Tam, Nora Fung-Yee]'s Articles
[Tam, NFY (reprint author), City Univ Hong Kong, Dept Biol & Chem, Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Ya-Fen]'s Articles
[Tam, Nora Fung-Yee]'s Articles
[Tam, NFY (reprint author), City Univ Hong Kong, Dept Biol & Chem, Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Ya-Fen]'s Articles
[Tam, Nora Fung-Yee]'s Articles
[Tam, NFY (reprint author), City Univ Hong Kong, Dept Biol & Chem, Tat Chee Ave, Hong Kong, Hong Kong, Peoples R China.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Natural attenuation of contaminated marine sediments from__ an old floating dock Part II Changes .pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.