Culexarchaeia, a novel archaeal class of anaerobic generalists inhabiting geothermal environments.

ABSTRACT: Geothermal environments, including terrestrial hot springs and deep-sea hydrothermal sediments, often contain many poorly understood lineages of archaea. Here, we recovered ten metagenome-assembled genomes (MAGs) from geothermal sediments and propose that they constitute a new archaeal class within the TACK superphylum, "Candidatus Culexarchaeia", named after the Culex Basin in Yellowstone National Park. Culexarchaeia harbor distinct sets of proteins involved in key cellular processes that are either phylogenetically divergent or are absent from other closely related TACK lineages, with a particular divergence in cell division and cytoskeletal proteins. Metabolic reconstruction revealed that Culexarchaeia have the capacity to metabolize a wide variety of organic and inorganic substrates. N

SUBMITTER: Kohtz AJ 

PROVIDER: S-EPMC9723716 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature