Work

Katarium polorum n. sp., n. g., a novel thecofilosean amoeba (Cercozoa, Rhizaria) from the polar oceans

Year: 2024

Type: article

Abstract: Thecate amoebae play important roles in terrestrial and aquatic ecosystems. This study introduces a novel thecofilosean amoeba from Arctic and Antarctic sea sediments. Phylogenetic analysis based on the 18S rDNA sequence places it in the family Chlamydophryidae (order Tectofilosida, class Thecofilosea). However, the novel organism exhibits a significant genetic divergence and distinct morphology from its closest relatives, prompting us to erect the novel genus Katarium with its type species Katarium polorum. K. polorum is a consumer of diatoms and prokaryotes, indicating an important role in nutrient cycling in the polar marine food webs.

Source: Journal of Eukaryotic Microbiology

DOI: 10.1111/jeu.13071

Authors: Marcel Dominik Solbach, Michael Bonkowski, Kenneth Dumack

Institution: University of Cologne

Language: English

Topic: Protist diversity and phylogeny

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: hybrid

Estimated APC paid: $3,090

Funders: Sight Research UK, Deutsche Forschungsgemeinschaft, Natural Environment Research Council