N₂O Reduction by Gemmatimonas aurantiaca and Potential Involvement of Gemmatimonadetes Bacteria in N₂O Reduction in Agricultural Soils.

ABSTRACT: Agricultural soil is the primary N₂O sink limiting the emission of N₂O gas into the atmosphere. Although Gemmatimonadetes bacteria are abundant in agricultural soils, limited information is currently available on N₂O reduction by Gemmatimonadetes bacteria. Therefore, the effects of pH and temperature on N₂O reduction activities and affinity constants for N₂O reduction were examined by performing batch experiments using an isolate of Gemmatimonadetes bacteria, Gemmatimonas aurantiaca (NBRC100505^T). G. aurantiaca reduced N₂O at pH 5-9 and 4-50°C, with the highest activity being observed at pH 7 and 30°C. The affinity constant of G. aurantiaca cells for N₂O was 4.4‍ ‍μM. The abundance and diversity of the

SUBMITTER: Oshiki M 

PROVIDER: S-EPMC9530729 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature