Life

2075-1729

12

SCIE

[논문]Ecological Aerobic Ammonia and Methane Oxidation Involved Key Metal Compounds, Fe and Cu

Hina Ayub, Min-Ju Kang, Man-Young Jung

히나아윱, 강민주, 정만영

Adeel Farooq

Interactions between metals and microbes are critical in geomicrobiology and vital in
microbial ecophysiological processes. Methane-oxidizing bacteria (MOB) and ammonia-oxidizing microorganisms
(AOM) are key members in aerobic environments to start the C and N cycles. Ammonia
and methane are firstly oxidized by copper-binding metalloproteins, monooxygenases, and diverse
iron and copper-containing enzymes that contribute to electron transportation in the energy gain
pathway, which is evolutionally connected between MOB and AOM. In this review, we summarized
recently updated insight into the diverse physiological pathway of aerobic ammonia and methane
oxidation of different MOB and AOM groups and compared the metabolic diversity mediated by
different metalloenzymes. The elevation of iron and copper concentrations in ecosystems would be
critical in the activity and growth of MOB and AOM, the outcome of which can eventually influence
the global C and N cycles. Therefore, we also described the impact of various concentrations of
metal compounds on the physiology of MOB and AOM. This review study could give a fundamental
strategy to control MOB and AOM in diverse ecosystems because they are significantly related to
climate change, eutrophication, and the remediation of contaminated sites for detoxifying pollutants.

2022-11-07

https://doi.org/10.3390/ life12111806