Characterization and genome analysis of a psychrophilic methanotroph representing a ubiquitous Methylobacter spp. cluster in boreal lake ecosystems.

ABSTRACT: Lakes and ponds are considered as a major natural source of CH₄ emissions, particularly during the ice-free period in boreal ecosystems. Aerobic methane-oxidizing bacteria (MOB), which utilize CH₄ using oxygen as an electron acceptor, are one of the dominant microorganisms in the CH₄-rich water columns. Metagenome-assembled genomes (MAGs) have revealed the genetic potential of MOB from boreal aquatic ecosystems for various microaerobic/anaerobic metabolic functions. However, experimental proof of these functions, i.e., organic acid production via fermentation, by lake MOB is lacking. In addition, psychrophilic (i.e., cold-loving) MOB and their CH₄-oxidizing process have rarely been investigated. In this study, we isolated, provided a taxonomic de

SUBMITTER: Khanongnuch R 

PROVIDER: S-EPMC9723741 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature