Soo-Je Park

TL;DR: Kinetic respirometry assays showed that strain MY1's affinities for ammonia and oxygen were much higher than those of ammonia-oxidizing bacteria (AOB) and the yield of the greenhouse gas N2O in the strain My1 culture was lower but comparable to that of soil AOB.

TL;DR: The experiments suggest that AOA may be important nitrifiers in low-oxygen environments, such as oxygen-minimum zones and marine sediments, and that archaeal cells became the dominant prokaryotes after biweekly transfers for 20 months.

TL;DR: In this article, core and intact polar lipid (IPLIPL)-based intact membrane lipids are analyzed for ammonia-oxidizing archaea (AOA) in the marine environment.

TL;DR: It is found that α-keto acids functioned as chemical scavengers that detoxified intracellularly produced H2O2 during ammonia oxidation, and this indicates that AOA broadly feature strict autotrophic nutrition and implicate H 2O2 as an important factor determining the activity, evolution, and community ecology of AOA ecotypes.

TL;DR: Considering their abundance and broad distribution, non-extremophilic Crenarchaeota are likely to play important roles in global organic and inorganic matter cycles and clades of unique amoA sequences were likely to cluster according to sampling sites.