PAHs contamination and bacterial communities in mangrove surface sediments of the Jiulong River Estuary, China SCIE SCOPUS

Cited 85 time in WEB OF SCIENCE Cited 91 time in Scopus
Title
PAHs contamination and bacterial communities in mangrove surface sediments of the Jiulong River Estuary, China
Author(s)
Tian, Y.; Liu, H. J.; Zheng, T. L.; Kwon, K. K.; Kim, S. J.; Yan, C. L.
KIOST Author(s)
Kwon, Kae Kyoung(권개경)
Publication Year
2008
Abstract
Sixteen sediment samples collected from eight transects in a mangrove swamp of the Jiulong River Estuary, Fujian, China were investigated for their content of polycyclic aromatic hydrocarbons (PAHs) and the biodegradation potential of the indigenous microorganisms. The bacterial community structures in the mangrove sediments and in enrichment cultures were also investigated. The results showed that the total PAHs concentration of mangrove sediments ranged from 280 to 1074 ng g(-1) dry weight, that the PAHs composition pattern in the mangrove sediments was dominated by high molecular weight PAH components (4-6 rings), and that Benzo[ghi]perylene and Indeno[1,2,3-cd]pyrene were the most dominant at different stations. Abundant PAH-degrading bacteria were found in all the stations, the values of phenanthrene-degrading bacteria ranged from 5.85 x 10(4) to 7.80 x 10(5) CFU g(-1) dry weight, fluoranthene-degrading bacteria ranged from 5.25 x 10(4) to 5.79 x 10(5) CFU g(-1) dry weight, pyrene-degrading bacteria ranged from 3.10 x 10(4) to 6.97 x 10(5) CFU g(-1) dry weight and the benzo(a)pyrene-degrading bacteria ranged from 5.25 x 10(4) to 7.26 x 10(5) CFU g(-1) dry weight. DGGE analysis of PCR-amplified 16S rDNA gene fragments confirmed that there was a remarkable shift in the composition of the bacterial community due to the addition of the different model PAH compound phenanthrene (three ring PAH), fluoranthene(four ring PAH), pyrene(four ring PAH) and benzo(a)pyrene(five ring PAH) during enrichment batch culture. Eleven strains were obtained with different morphology and different degradation ability. The presence of common bands for microbial species in the cultures and in the native mangrove sediment DNA indicated that these strains could be potential in situ PAH-degraders. (C) 2008 Elsevier Ltd. All rights reserved.
ISSN
0025-326X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4595
DOI
10.1016/j.marpolbul.2008.03.011
Bibliographic Citation
MARINE POLLUTION BULLETIN, v.57, no.6-12, pp.707 - 715, 2008
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
POLYCYCLIC AROMATIC-HYDROCARBONS; DEGRADING BACTERIA; MARINE-SEDIMENTS; SP NOV.; DEGRADATION; BIOREMEDIATION; POLLUTION; CEPACIA; ORIGIN; PYRENE
Keywords
polycyclic aromatic hydrocarbons (PAHs); mangrove sediments; bacterial community; denaturing gradient gel electrophoresis (DGGE)
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
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