Diverse electron sources support denitrification under hypoxia in the obligate methanotroph Methylomicrobium album strain BG8.

ABSTRACT: Aerobic methane-oxidizing bacteria (MOB) are a diverse group of microorganisms that are ubiquitous in natural environments. Along with anaerobic MOB and archaea, aerobic methanotrophs are critical for attenuating emission of methane to the atmosphere. Clearly, nitrogen availability in the form of ammonium and nitrite have strong effects on methanotrophic activity and their natural community structures. Previous findings show that nitrite amendment inhibits the activity of some cultivated methanotrophs; however, the physiological pathways that allow some strains to transform nitrite, expression of gene inventories, as well as the electron sources that support this activity remain largely uncharacterized. Here we show that Methylomicrobium album strain BG8 utilizes methane, methanol, formald

SUBMITTER: Kits KD 

PROVIDER: S-EPMC4594100 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature