Distribution and activity of anaerobic ammonium-oxidising bacteria in natural freshwater wetland soils
Distribution and activity of anaerobic ammonium-oxidising bacteria in natural freshwater wetland soils
复制标题
天然淡水湿地土壤中厌氧氨氧化细菌的分布及其活性
DOI:
10.1007/s00253-015-7191-z
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发表时间:
2016-04
影响因子:
5
通讯作者:
Ren Qian-qi
中科院分区:
文献类型:
--
作者:
Shen Li-dong;Wu Hong-sheng;Gao Zhi-qiu;Cheng Hai-xiang;Li Ji;Liu Xu;Ren Qian-qi
Anaerobic ammonium oxidation (anammox) process plays a significant role in the marine nitrogen cycle. However, the quantitative importance of this process in nitrogen removal in wetland systems, particularly in natural freshwater wetlands, is still not determined. In the present study, we provided the evidence of the distribution and activity of anammox bacteria in a natural freshwater wetland, located in southeastern China, by using15N stable isotope measurements, quantitative PCR assays and 16S rRNA gene clone library analysis. The potential anammox rates measured in this wetland system ranged between 2.5 and 25.5 nmol N2g−1soil day−1, and up to 20 % soil dinitrogen gas production could be attributed to the anammox process. Phylogenetic analysis of 16S rRNA genes showed that anammox bacteria related toCandidatusBrocadia,CandidatusKuenenia,CandidatusAnammoxoglobus and two novel anammox clusters coexisted in the collected soil cores, withCandidatusBrocadia andCandidatusKuenenia being the dominant anammox genera. Quantitative PCR of hydrazine synthase genes showed that the abundance of anammox bacteria varied from 2.3 × 105to 2.2 × 106copies g−1soil in the examined soil cores. Correlation analyses suggested that the soil ammonium concentration had significant influence on the activity of anammox bacteria. On the basis of15N tracing technology, it is estimated that a total loss of 31.1 g N m−2per year could be linked the anammox process in the examined wetland.
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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
通讯作者:
D. Woebken;P. Lam;M. Kuypers;S. Naqvi;B. Kartal;M. Strous;M. Jetten;B. Fuchs;R. Amann
DOI:
--
发表时间:
2002
期刊:
--
影响因子:
--
作者:
T. Braak;F. Cateten;P. Šmilauer
通讯作者:
T. Braak;F. Cateten;P. Šmilauer
影响因子:
3.3
作者:
B. Song;C. Buckner;D. Hembury;R. Mills;M. Palmer
通讯作者:
B. Song;C. Buckner;D. Hembury;R. Mills;M. Palmer
DOI:
--
发表时间:
2002
期刊:
--
影响因子:
--
作者:
C. Braak;P. Šmilauer
通讯作者:
C. Braak;P. Šmilauer
DOI:
--
发表时间:
2010
期刊:
--
影响因子:
--
作者:
M. Jetten;H. J. M. Camp;J. Kuenen;M. Strous
通讯作者:
M. Jetten;H. J. M. Camp;J. Kuenen;M. Strous