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Bacterial diversity, community structure and function associated with biofilm development in a biological aerated filter in a recirculating marine aquaculture system
Gao, Xi-Yan1; Xu, Yang2; Liu, Ying; Liu, Ying; Liu, Zhi-Pei1; Liu, ZP (reprint author), Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, W Beichen Rd, Beijing 100101, Peoples R China.
2012-03-01
发表期刊MARINE BIODIVERSITY
ISSN1867-1616
卷号42期号:1页码:1-11
文章类型Article
摘要A biological aerated filter (100 l), filled with bamboo ball media, was set up for treatment of low ammonia-containing recirculating water in a marine aquaculture system. Chemical analysis showed that it took 70 days to establish a stable efficiency, at which more than 30% of the ammonia was removed. During the biofilm development, bacterial diversity and community structure were determined by construction of 16S rRNA gene libraries. Bacterial diversity and population richness were quite abundant and increased gradually, as revealed by the indexes of Shannon (from 3.34 to 3.94), Simpson (from 0.94 to 0.97) and Margalef (from 7.91 to 14.25). Dominant groups in the whole process showed a regular variation trend: a decrease of uncultured bacteria and Bacteroidetes from 38% to 32% and from 18% to 7%, respectively; and an increase of Alphaproteobacteria from 22% to 41%. In particular, clones closely relating to Denitromonas increased from 1.7% to 6.5% and then to 10% in the libraries A, B and C, respectively; in addition to the only detection of six clones (3%) representing Nitrospira in library C. Furthermore, a few strains capable of heterotrophic ammonia-oxidizing or aerobic denitrifying were isolated from the late phase of the biofilm development. All these results might infer that the biofilm bacterial community gradually shifts from chemical oxygen demand (COD)-removing flora to COD- and nitrogen-removing ones with the biofilm development, and that nitrification, heterotrophic ammonia oxidizing and denitrification all contribute to nitrogen removal of the biofilter.
关键词Recirculating Marine Aquaculture Nitrogen Removal Biological Aerated Filter Biofilm Bacterial Community 16s Rrna Gene Library
学科领域Biodiversity Conservation ; Marine & Freshwater Biology
DOI10.1007/s12526-011-0086-z
URL查看原文
收录类别SCI
语种英语
WOS记录号WOS:000303872600001
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被引频次:44[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/12124
专题海洋环境工程技术研究发展中心
海洋生物技术研发中心
通讯作者Liu, ZP (reprint author), Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, W Beichen Rd, Beijing 100101, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Microbiol, State Key Lab Microbial Resources, Beijing 100101, Peoples R China
2.Qingdao Technol Univ, Qingdao 266033, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao 266701, Peoples R China
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GB/T 7714
Gao, Xi-Yan,Xu, Yang,Liu, Ying,et al. Bacterial diversity, community structure and function associated with biofilm development in a biological aerated filter in a recirculating marine aquaculture system[J]. MARINE BIODIVERSITY,2012,42(1):1-11.
APA Gao, Xi-Yan,Xu, Yang,Liu, Ying,Liu, Ying,Liu, Zhi-Pei,&Liu, ZP .(2012).Bacterial diversity, community structure and function associated with biofilm development in a biological aerated filter in a recirculating marine aquaculture system.MARINE BIODIVERSITY,42(1),1-11.
MLA Gao, Xi-Yan,et al."Bacterial diversity, community structure and function associated with biofilm development in a biological aerated filter in a recirculating marine aquaculture system".MARINE BIODIVERSITY 42.1(2012):1-11.
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