Abstract:
:The discovery of denitrifying anaerobic methane oxidation with nitrite as electron acceptor mediated by 'Candidatus Methylomirabilis oxyfera' connected the biogeochemical carbon and nitrogen cycle in a new way. However, it is important to have a comprehensive understanding about the distribution of M. oxyfera-like bacteria in the terrestrial realm, especially the wetland ecosystems that are known as the largest natural source of atmospheric methane. Here, our molecular evidence demonstrated that a wide geographical distribution of M. oxyfera-like bacteria at oxic/anoxic interfaces of various wetlands (n = 91) over the Chinese territory. Intriguingly, the M. oxyfera-like bacteria were detected in some extreme environments, indicating that M. oxyfera-like bacteria occupied a wide range of habitats. Quantitative polymerase chain reaction estimated that the abundance of M. oxyfera-like bacteria ranged from 2.2 × 10(3) to 2.3 × 10(7) copies g(-1) dry soil, and up to around 0.62% of the total number of bacteria. Moreover, the M. oxyfera-like bacteria showed high biodiversity in wetland ecosystems based on the analysis of 462 pmoA and 287 16S rRNA gene sequences. The current study revealed the widespread distribution and biogeography of M. oxyfera-like bacteria in the terrestrial system.
journal_name
Environ Microbiol Repjournal_title
Environmental microbiology reportsauthors
Zhu G,Zhou L,Wang Y,Wang S,Guo J,Long XE,Sun X,Jiang B,Hou Q,Jetten MS,Yin Cdoi
10.1111/1758-2229.12214subject
Has Abstractpub_date
2015-02-01 00:00:00pages
128-38issue
1issn
1758-2229journal_volume
7pub_type
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