Isolation and characterization of a bacterium affiliated with the hitherto uncultured candidate phylum WOR-3 from a deep-sea hydrothermal fluid.

ABSTRACT: A pure cultured representative, designated strain sy37, in the candidate WOR-3 lineage was obtained from a deep-sea hydrothermal fluid. This lineage was named as the candidate phylum, "Candidatus Caldipriscota," "Candidatus Hydrothermota," or "Candidatus Stahliibacteriota," based on metagenome-assembled genomes of samples from various environments. The isolated strain was a thermophilic, microaerophilic, and chemoheterotrophic rod and obtained energy through aerobic/anaerobic respiration using oxygen and elemental sulfur. The strain could not use thiosulfate, sulfate, sulfite, fumarate, nitrate, nitrite, selenate, selenite, arsenate, ferric citrate, or ferrihydrite as an electron acceptor. Genomic annotation suggested that strain sy37 possesses a novel sulfur reduction

SUBMITTER: Mori K 

PROVIDER: S-EPMC12285271 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature