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Preliminary study on PAH degradation by bacteria from contaminated sediments in Xiamen Western Sea, Fujian, China
In order to estimate the biodegradation of three polycyclic aromatic hydrocarbons (PAHs) compounds, bacterial strains were isolated from marine sediments in three heavily contaminated sites (Yuandang Lake, Dongdu Port and Aquacultural zones in Maluan Bay) in Xiamen Western Sea. The results show three bacterial strains, which used pyrene as the sole carbon source, were identified as strains of Aureobacterium sp., Arthrobacter sp., Rhodococcus sp. The PAH-degrading bacteria isolated had a strong ability to degrade phenanhrene, fluoranthene and pyrene at different degradation rates. The highest degradation rate was observed when three PAH compounds were mixed with an individual strain in the medium. The three PAHs were degraded after one week with a degradation rate of 89.94 % for phenanthrene and 93.4 % for both of fluoranthene and pyrene. In addition, after 25 days of incubation, the degradation rate was 99.98 % for phenanthrene and 99.97 % for both of fluoranthene and pyrene. Optical density was measured to estimate bacterial growth during the degradation of PAHs. Highest levels of bacterial growth were observed with a three PAH mixture in the culture, suggesting that the concentration of PAHs influenced bacterial growth and the highest levels of degradation for most series were detected after one week of incubation.
作 者： MASKAOUI Khalid ZHENG Tianling HONG Huasheng Yu Zhiming Yuan Jianjun Hu Zhong 作者單位： MASKAOUI Khalid,ZHENG Tianling(School of Life Sciences, Xiamen University, Xiamen 361005, China;Key Lab. of Marine Environmental Science, China Ministry of Education, Xiamen 361005, China)HONG Huasheng(Key Lab. of Marine Environmental Science, China Ministry of Education, Xiamen 361005, China)
Yu Zhiming(Key Lab. of Marine Ecology & Environmental Science, Chinese Academy of Sciences, Qingdao 266071, China)
Yuan Jianjun(Department of Biology, Quanzhou Normal College, Quanzhou 362000, China)
Hu Zhong(School of Life Sciences, Xiamen University, Xiamen 361005, China)
刊 名： 中國海洋湖沼學(xué)報（英文版） ISTIC SCI 英文刊名： CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 年，卷(期)： 2004 22(4) 分類號： P7 關(guān)鍵詞： PAHs biodegradation bacteria Xiamen Western Sea【Preliminary study on PAH degradation】相關(guān)文章：
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