Enrichment of N2O Reducers from Lake Sediments: Clade I Type Dominated Microbial Communities Acting as Net N2O Sinks
Nitrous oxide-reducing bacteria (N2ORB) are the only known sink of the biotic pathway for greenhouse gas N2O. Lake ecosystem is one of major N2O emission hotspots of inland waters, facing threat of eutrophication and climate change as well. However, crucial N2ORB that contributing to reduce N2O from lakes are uncertain. In this study, sediments from four geographically distinct lakes were inoculated into chemostats to enrich dominant N2ORB. The findings from this study provide crucial insights into the strategies employed by dominant N2ORB in lake ecosystems to utilize N2O, offering a deeper understanding of their role in regulating N2O emissions.
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