Potential role of anammox in nitrogen removal in a freshwater reservoir, Jiulonghu Reservoir (China)
Potential role of anammox in nitrogen removal in a freshwater reservoir, Jiulonghu Reservoir (China)
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厌氧氨氧化在九龙湖水库（中国）淡水水库脱氮中的潜在作用
DOI：
10.1007/s11356-016-8126-7
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发表时间：
2017-02
影响因子：
5.8
通讯作者：
Liu Yan
中科院分区：
文献类型：
--
作者：
Shen Li-dong;Cheng Hai-xiang;Liu Xu;Li Jian-hui;Liu Yan
Currently, the nitrogen removal potential of anaerobic ammonium oxidation (anammox) and its regulating factors in reservoir systems remain uncertain. Here, we provided the molecular and isotopic evidence for anammox in the freshwater sediment of Jiulonghu Reservoir that is located in Quzhou, Zhejiang Province, China. Diverse 16S rRNA gene sequences related toCandidatusKuenenia andCandidatusBrocadia were detected by using high-throughput (Illumina MiSeq) sequencing of total bacterial 16S rRNA genes, and theCandidatusBrocadia was the most frequently detected anammox bacterial genus. The anammox bacterial abundance was determined based on quantitative PCR onhzsA (the alpha subunit of the hydrazine synthase) genes and varied from 3.1 × 105to 1.1 × 106copies g−1dry sediment. Homogenized sediments were further incubated with15NO3−amendments to measure the potential anammox rates and determine the contribution of this process to dinitrogen gas (N2) production. The potential rates of anammox ranged between 8.1 and 30.8 nmol N2g−1dry sediment day−1, and anammox accounted for 7.7–20.5% of total N2production in sediment. Higher levels of anammox bacterial diversity, abundance, and activity were observed in the downstream with greater human disturbance than those in the upstream with less human disturbance. Correlation analyses suggested that the inorganic nitrogen level in sediment could be a key factor for the anammox bacterial abundance and activity. The results showed that the nitrogen removal via anammox may not be negligible in the examined reservoir and indicated that human activities could influence the anammox process in reservoir systems.
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水产养殖池塘淡水沉积物中厌氧氨氧化过程的证据
影响因子：
5.8
作者：
Shen Li-dong;Wu Hong-sheng;Gao Zhi-qiu;Ruan Yun-jie;Xu Xiang-hua;Li Ji;Ma Shi-jie;Zheng Pei-hui
通讯作者：
Zheng Pei-hui
影响因子：
5.2
作者：
Sonthiphand P;Hall MW;Neufeld JD
通讯作者：
Neufeld JD
影响因子：
5.1
作者：
D. Woebken;P. Lam;M. Kuypers;S. Naqvi;B. Kartal;M. Strous;M. Jetten;B. Fuchs;R. Amann
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D. Woebken;P. Lam;M. Kuypers;S. Naqvi;B. Kartal;M. Strous;M. Jetten;B. Fuchs;R. Amann
影响因子：
5
作者：
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通讯作者：
G. Claus;H. Kutzner
影响因子：
15.5
作者：
Fadrosh DW;Ma B;Gajer P;Sengamalay N;Ott S;Brotman RM;Ravel J
通讯作者：
Ravel J