Genomic Insights Into the Acid Adaptation of Novel Methanotrophs Enriched From Acidic Forest Soils.

ABSTRACT: Soil acidification is accelerated by anthropogenic and agricultural activities, which could significantly affect global methane cycles. However, detailed knowledge of the genomic properties of methanotrophs adapted to acidic soils remains scarce. Using metagenomic approaches, we analyzed methane-utilizing communities enriched from acidic forest soils with pH 3 and 4, and recovered near-complete genomes of proteobacterial methanotrophs. Novel methanotroph genomes designated KS32 and KS41, belonging to two representative clades of methanotrophs (Methylocystis of Alphaproteobacteria and Methylobacter of Gammaproteobacteria), were dominant. Comparative genomic analysis revealed diverse systems of membrane transporters for ensuring pH homeostasis and defense against

SUBMITTER: Nguyen NL 

PROVIDER: S-EPMC6119699 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature