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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
Source PublicationMICROBIAL ECOLOGY
Volume73Issue:1Pages:1-15
SubtypeArticle
AbstractBiofilms 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.
KeywordCultured Biofilms Microbial Community Microbial Diversity Microbial Succession Nitrogen Availability Nitrogen Cycling
DOI10.1007/s00248-016-0827-4
Indexed BySCI
Language英语
WOS IDWOS:000392130400001
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136286
Collection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
Affiliation1.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
Recommended Citation
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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