Clarifying Microbial Nitrous Oxide Reduction under Aerobic Conditions: Tolerant, Intolerant, and Sensitive.

ABSTRACT: One of the major challenges for the bioremediation application of microbial nitrous oxide (N₂O) reduction is its oxygen sensitivity. While a few strains were reported capable of reducing N₂O under aerobic conditions, the N₂O reduction kinetics of phylogenetically diverse N₂O reducers are not well understood. Here, we analyzed and compared the kinetics of clade I and clade II N₂O-reducing bacteria in the presence or absence of oxygen (O₂) by using a whole-cell assay with N₂O and O₂ microsensors. Among the seven strains tested, N₂O reduction of Stutzerimonas stutzeri TR2 and ZoBell was not inhibited by oxygen (i.e., oxygen tolerant). Paracoccus denitrificans, Azospirillum brasilense, and Gemmat

SUBMITTER: Wang Z 

PROVIDER: S-EPMC10100939 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature