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Studies from University of Hong Kong Add New Findings in the Area of Bacteria (Occurrence and diversity of nitrite-dependent anaerobic methane...

July 16, 2014



Studies from University of Hong Kong Add New Findings in the Area of Bacteria (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 ...)

By a News Reporter-Staff News Editor at Biotech Week -- Current study results on Bacteria have been published. According to news reporting out of Hong Kong, People's Republic of China, by NewsRx editors, research stated, "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)."

Our news journalists obtained a quote from the research from the University of Hong Kong, "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 NO (x) (-) 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."

According to the news editors, the research concluded: "The community based on pmoA gene-amplified sequences, and community richness and diversity based on 16S rRNA gene-amplified sequences correlated with temperature."

For more information on this research see: 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, 2014;98(12):5685-5696. Applied Microbiology and Biotechnology can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer - www.springer.com; Applied Microbiology and Biotechnology - www.springerlink.com/content/0175-7598/)

Our news journalists report that additional information may be obtained by contacting J. Chen, University of Hong Kong, Fac Sci, Sch Biol Sci, Lab Environm Microbiol & Toxicol, Hong Kong, Hong Kong, People's Republic of China. Additional authors for this research include Z.C. Zhou and J.D. Gu (see also Bacteria).

Keywords for this news article include: Bacteria, Hong Kong, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Biotech Week


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