NDLI: Distribution and Diversity of Nitrite-Dependent Anaerobic Methane-Oxidising Bacteria in the Sediments of the Qiantang River

Content Provider	Springer Nature Link
Author	Shen, Li dong Liu, Shuai Zhu, Qun Li, Xiao yu Cai, Chen Cheng, Dong qing Lou, Li ping Xu, Xiang yang Zheng, Ping Hu, Bao lan
Copyright Year	2013
Abstract	Nitrite-dependent anaerobic methane oxidation (n-damo) process was reported to be mediated by “Candidatus Methylomirabilis oxyfera”, which belongs to the candidate phylum NC10. M. oxyfera-like bacteria have been detected in lake ecosystems, while their distribution, diversity and abundance in river ecosystems have not been well studied. In this study, both the 16S rRNA and the pmoA molecular biomarkers confirmed the presence of diverse NC10 phylum bacteria related to M. oxyfera in a river ecosystem—the Qiantang River, Zhejiang Province (China). Phylogenetic analysis of 16S rRNA genes demonstrated that the recovered M. oxyfera-like sequences could be grouped into several distinct clusters that exhibited 89.8 % to 98.9 % identity to the M. oxyfera 16S rRNA gene. Similarly, several different clusters of pmoA gene sequences were observed, and these clusters displayed 85.1–95.4 % sequence identity to the pmoA gene of M. oxyfera. Quantitative PCR showed that the abundance of M. oxyfera-like bacteria varied from 1.32 ± 0.16 × 106 to 1.03 ± 0.12 × 107 copies g (dry weight)−1. Correlation analysis demonstrated that the total inorganic nitrogen content, the ammonium content and the organic content of the sediment were important factors affecting the distribution of M. oxyfera-like bacterial groups in the examined sediments. This study demonstrated the distribution of diverse M. oxyfera-like bacteria and their correlation with environmental factors in Qiantang River sediments.
Starting Page	341
Ending Page	349
Page Count	9
File Format	PDF
ISSN	00953628
Journal	Microbial Ecology
Volume Number	67
Issue Number	2
e-ISSN	1432184X
Language	English
Publisher	Springer US
Publisher Date	2013-11-23
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Microbiology Ecology Microbial Ecology Geoecology/Natural Processes Nature Conservation Water Quality/Water Pollution
Content Type	Text
Resource Type	Article
Subject	Soil Science Ecology Ecology, Evolution, Behavior and Systematics

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