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Existence of novel phylotypes of nitrite-dependent anaerobic methane-oxidizing bacteria in surface and subsurface sediments of the South China Sea
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Chen, Jing, Jiang, Xi-Wen and Gu, Ji-Dong (2015) Existence of novel phylotypes of nitrite-dependent anaerobic methane-oxidizing bacteria in surface and subsurface sediments of the South China Sea. Geomicrobiology Journal , 32 (1). pp. 1-10. doi:10.1080/01490451.2014.917742 ISSN 0149-0451.
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Official URL: http://dx.doi.org/10.1080/01490451.2014.917742
Abstract
Nitrite-dependent anaerobic methane oxidation (n-damo) is a recently discovered new microbial process performed by the Candidatus Methylomirabilis oxyfera with an unusual intra-aerobic pathway, but there is no report about n-damo bacteria in marine environments. M. oxyfera-like sequences were successfully retrieved for the first time from both surface and subsurface ocean sediments of the South China Sea (SCS) using both 16S rRNA and pmoA genes as biomarkers and PCR amplification in this study. The majority of M. oxyfera-like 16S rRNA gene-based PCR amplified sequences from the SCS sediments formed a new group distinctively different from those detected in freshwater habitats and the information is consistent phylogenetically with those obtained from the pmoA gene. This study showed the existence of n-damo in ocean sediments and suggests that marine sediments harbor n-damo phylotypes different from those in the freshwater. This finding here expands our understanding on the distribution of n-damo bacteria to marine ecosystem and implies their potential contribution to the marine C and N cycling.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||
Journal or Publication Title: | Geomicrobiology Journal | ||||||||
Publisher: | Taylor & Francis | ||||||||
ISSN: | 0149-0451 | ||||||||
Official Date: | 2015 | ||||||||
Dates: |
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Volume: | 32 | ||||||||
Number: | 1 | ||||||||
Page Range: | pp. 1-10 | ||||||||
DOI: | 10.1080/01490451.2014.917742 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access |
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