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| Main Authors: | , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
European journal of protistology
2025
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40714531/ |
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Table of Contents:
- Revision of the Acanthocystis turfacea species complex, description of Acanthocystis pohjolensis n. sp. and notes on the phylogeny of Acanthocystis. Poluzerov, Savelii A Dmitrovskaya, Sofiya V Phylogeny RNA, Ribosomal, 18S Species Specificity Acanthocystis turfacea Carter, 1863 is the type species of the centrohelid genus Acanthocystis Carter, 1863, which is characterized by bifurcated spine scales. In this study, the organism reported under the name A. turfacea by Zlatogursky and Klimov (2016) is reidentified as A. hymenodes Nicholls, 2023, based on morphological and morphometric evidence. Additionally, a centrohelid with a small cell diameter (7.9-11.9 μm) and distinctive scales, previously attributed to A. turfacea, was isolated from a marine habitat and is described here as a new species, Acanthocystis pohjolensis n. sp. Molecular phylogenetic analysis based on 18S rRNA gene sequences places A. pohjolensis and A. hymenodes in a basal position within the genus Acanthocystis, suggesting that bifurcated spine scales are likely an ancestral trait of this genus. Furthermore, the taxonomic status of A. turfacea ssp. decidens Nicholls, 2023 is revised and elevated to species level as A. decidens Nicholls, 2023 n. stat. The A. turfacea species complex is revisited.