1. Salinity significantly affects methane oxidation and methanotrophic community in Inner Mongolia lake sediments
- Author
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Shaohua Zhang, Lei Yan, Jiahui Cao, Kexin Wang, Ying Luo, Haiyang Hu, Lixin Wang, Ruihong Yu, Baozhu Pan, Ke Yu, Ji Zhao, and Zhihua Bao
- Subjects
methanotrophic community ,CH4 oxidation potential ,co-occurrence ,salinity ,Inner Mongolia ,Microbiology ,QR1-502 - Abstract
Methanotrophs oxidize methane (CH4) and greatly help in mitigating greenhouse effect. Increased temperatures due to global climate change can facilitate lake salinization, particularly in the regions with cold semiarid climate. However, the effects of salinity on the CH4 oxidation activity and diversity and composition of methanotrophic community in the sediment of natural lakes at a regional scale are still unclear. Therefore, we collected lake sediment samples from 13 sites in Mongolian Plateau; CH4 oxidation activities of methanotrophs were investigated, and the diversity and abundance of methanotrophs were analyzed using real-time quantitative polymerase chain reaction and high throughput sequencing approach. The results revealed that the diversity of methanotrophic community decreased with increasing salinity, and community structure of methanotrophs was clearly different between the hypersaline sediment samples (HRS; salinity > 0.69%) and hyposaline sediment samples (HOS; salinity
- Published
- 2023
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