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Microbial Succession and Nitrogen Cycling in Cultured Biofilms as Affected by the Inorganic Nitrogen Availability
Li, Shuangshuang1,2; Peng, Chengrong1; Wang, Chun2,3; Zheng, Jiaoli1,2; Hu, Yao1,2; Li, Dunhai1
2017
发表期刊MICROBIAL ECOLOGY
卷号73期号:1页码:1-15
文章类型Article
摘要Biofilms play important roles in nutrients and energy cycling in aquatic ecosystems. We hypothesized that as eutrophication could change phytoplankton community and decrease phytoplankton diversity, ambient inorganic nitrogen level will affect the microbial community and diversity of biofilms and the roles of biofilms in nutrient cycling. Biofilms were cultured using a flow incubator either with replete inorganic nitrogen (N-rep) or without exogenous inorganic nitrogen supply (N-def). The results showed that the biomass and nitrogen and phosphorous accumulation of biofilms were limited by N deficiency; however, as expected, the N-def biofilms had significantly higher microbial diversity than that of N-rep biofilms. The microbial community of biofilms shifted in composition and abundance in response to ambient inorganic nitrogen level. For example, as compared between the N-def and the N-rep biofilms, the former consisted of more diazotrophs, while the latter consisted of more denitrifying bacteria. As a result of the shift of the functional microbial community, the N concentration of N-rep medium kept decreasing, while that of N-def medium showed an increasing trend in the late stage. This indicates that biofilms can serve as the source or the sink of nitrogen in aquatic ecosystems, and it depends on the inorganic nitrogen availability.
关键词Cultured Biofilms Microbial Community Microbial Diversity Microbial Succession Nitrogen Availability Nitrogen Cycling
DOI10.1007/s00248-016-0827-4
收录类别SCI
语种英语
WOS记录号WOS:000392130400001
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136286
专题海洋生态与环境科学重点实验室
实验海洋生物学重点实验室
作者单位1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
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GB/T 7714
Li, Shuangshuang,Peng, Chengrong,Wang, Chun,et al. Microbial Succession and Nitrogen Cycling in Cultured Biofilms as Affected by the Inorganic Nitrogen Availability[J]. MICROBIAL ECOLOGY,2017,73(1):1-15.
APA Li, Shuangshuang,Peng, Chengrong,Wang, Chun,Zheng, Jiaoli,Hu, Yao,&Li, Dunhai.(2017).Microbial Succession and Nitrogen Cycling in Cultured Biofilms as Affected by the Inorganic Nitrogen Availability.MICROBIAL ECOLOGY,73(1),1-15.
MLA Li, Shuangshuang,et al."Microbial Succession and Nitrogen Cycling in Cultured Biofilms as Affected by the Inorganic Nitrogen Availability".MICROBIAL ECOLOGY 73.1(2017):1-15.
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