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Occurrence and diversity of nitrite-dependent anaerobic methane oxidation bacteria in the sediments of the South China Sea revealed by amplification of both 16S rRNA and pmoA genes
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Chen, Jing, Zhou, Zhi-Chao and Gu, Ji-Dong (2014) Occurrence and diversity of nitrite-dependent anaerobic methane oxidation bacteria in the sediments of the South China Sea revealed by amplification of both 16S rRNA and pmoA genes. Applied Microbiology and Biotechnology, 98 (12). pp. 5685-5696. doi:10.1007/s00253-014-5733-4 ISSN 0175-7598.
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Official URL: http://dx.doi.org/10.1007/s00253-014-5733-4
Abstract
Nitrite-dependent anaerobic methane oxidation (n-damo) process is unique in linking the microbial carbon and nitrogen cycles, but the presence of n-damo bacteria in marine ecosystem and the associated environmental factors are still poorly understood. In the present study, detection of n-damo bacteria using 16S rRNA and pmoA gene-based PCR primers was successfully employed to reveal their diversity and distribution in the surface and subsurface sediments of the South China Sea (SCS). The widespread occurrence of n-damo bacteria in both the surface and subsurface sediments with high diversity has been confirmed in this study. The pmoA gene-amplified sequences clustered within three newly erected subclusters, namely SCS-1, SCS-2, and SCS-3, suggesting the unique niche specificity of n-damo bacteria in the marine ecosystem. Results indicated the presence of n-damo bacteria in the west Pacific Ocean with a wide distribution from the continental shelf (E201S) to the deep abyss (E407S and E407B). Community structures of n-damo bacteria in SCS are clearly different from those of nonmarine ones known. It is also found that NOx− and NH4+ affected the community structures and distribution of n-damo bacteria in the SCS sediments differently. Salinity is another important factor identified, shaping the n-damo communities in marine environments. The community based on pmoA gene-amplified sequences, and community richness and diversity based on 16S rRNA gene-amplified sequences correlated with temperature.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||
Journal or Publication Title: | Applied Microbiology and Biotechnology | ||||||
Publisher: | Springer | ||||||
ISSN: | 0175-7598 | ||||||
Official Date: | June 2014 | ||||||
Dates: |
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Volume: | 98 | ||||||
Number: | 12 | ||||||
Page Range: | pp. 5685-5696 | ||||||
DOI: | 10.1007/s00253-014-5733-4 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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