Characterization of Skoliomonas gen. nov., a haloalkaliphilic anaerobe related to barthelonids (Metamonada).

ABSTRACT: Metamonads are a large and exclusively anaerobic group of protists. Additionally, they are one of the three clades proposed to ancestrally possess an "excavate" cell morphology, with a conspicuous ventral groove accompanied by a posterior flagellum with a vane. Here, we cultivate and characterize four anaerobic bacterivorous flagellates from hypersaline and alkaline soda lake environments, which represent a novel clade. Small subunit ribosomal RNA (SSU rRNA) gene phylogenies support recent phylogenomic analyses in placing them as the sister of barthelonids, a group that is itself sister to or deeply branching within Fornicata (Metamonada). The new isolates have a distinctive morphology: the hunchbacked cell body is traversed by a narrow ventral groove ending in a large opening to a conspic

SUBMITTER: Eglit Y 

PROVIDER: S-EPMC11603281 | biostudies-literature | 2024 Nov-Dec

REPOSITORIES: biostudies-literature