Freshwater Chlorobia Exhibit Metabolic Specialization among Cosmopolitan and Endemic Populations.

ABSTRACT: Photosynthetic bacteria from the class Chlorobia (formerly phylum Chlorobi) sustain carbon fixation in anoxic water columns. They harvest light at extremely low intensities and use various inorganic electron donors to fix carbon dioxide into biomass. Until now, most information on the functional ecology and local adaptations of Chlorobia members came from isolates and merely 26 sequenced genomes that may not adequately represent natural populations. To address these limitations, we analyzed global metagenomes to profile planktonic Chlorobia cells from the oxyclines of 42 freshwater bodies, spanning subarctic to tropical regions and encompassing all four seasons. We assembled and compiled over 500 genomes, including metagenome-assembled genomes (MAGs), single-amp

SUBMITTER: Garcia SL 

PROVIDER: S-EPMC8125076 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature