Nitrous Oxide Reduction by an Obligate Aerobic Bacterium, Gemmatimonas aurantiaca Strain T-27.

ABSTRACT: N₂O-reducing organisms with nitrous oxide reductases (NosZ) are known as the only biological sink of N₂O in the environment. Among the most abundant nosZ genes found in the environment are nosZ genes affiliated with the understudied Gemmatimonadetes phylum. In this study, a unique regulatory mechanism of N₂O reduction in Gemmatimonas aurantiaca strain T-27, an isolate affiliated with the Gemmatimonadetes phylum, was examined. Strain T-27 was incubated with N₂O and/or O₂ as the electron acceptor. Significant N₂O reduction was observed only when O₂ was initially present. When batch cultures of strain T-27 were amended with O₂ and N₂O, N₂O reduction

SUBMITTER: Park D 

PROVIDER: S-EPMC5452805 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature