The contributions of ammonia oxidizing bacteria and archaea to nitrification-dependent N₂O emission in alkaline and neutral purple soils.

ABSTRACT: Nitrification is believed to be one of the primary processes of N₂O emission in the agroecological system, which is controlled by soil microbes and mainly regulated by soil pH, oxygen content and NH₄⁺ availability. Previous studies have proved that the relative contributions of ammonia oxidizing bacteria (AOB) and archaea (AOA) to N₂O production were varied with soil pH, however, there is still no consensus on the regulating mechanism of nitrification-derived N₂O production by soil pH. In this study, 1-octyne (a selective inhibitor of AOB) and acetylene (an inhibitor of AOB and AOA) were used in a microcosm incubation experiment to differentiate the relative contribution of AOA and AOB to N₂O emissions in a neutral (pH = 6.7

SUBMITTER: Hu L 

PROVIDER: S-EPMC9675842 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature