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Morphology and spicules elemental composition of Marophrys nikolaevi spec. nov. (Haptista: Centroplasthelida). Eur J Protistol 2022; 84:125888. [DOI: 10.1016/j.ejop.2022.125888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 11/22/2022]
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Triangulopteris lacunata gen. et sp. nov. (Centroplasthelida), a New Centrohelid Heliozoan from Soil. DIVERSITY 2021. [DOI: 10.3390/d13120658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A new genus and species of centrohelid heliozoans, Triangulopteris lacunata gen. et sp. nov. (Pterocystidae Cavalier-Smith and Heyden, 2007), from four geographically remote locations (the Crimean Peninsula, the Dnieper Lowland (the East European Plain), Franz Josef Land, and the Kolyma Lowland (North–Eastern Siberia) was examined using light and electron microscopy. The novel centrohelid is characterized by round shape, 4.3–16.3 μm in diameter, covered with two types of scales: 1.06–4.54 μm long triangular spine scales and 1.22–2.05 μm oval plate scales. Studied centrohelid heliozoan possesses a unique spine scale morphology. The base of scales is represented by a horse hoof-shaped basal plate. The inner surface and lateral wings of spine scales have numerous radial ribs with two ‘pockets’ that are located on both sides of the spine shaft. These pockets are formed by the lateral wings and ends of the basal plate. The cyst formation and transition to a spicules-bearing stage were noted. Additionally, phylogenetic tree was constructed based on SSU rRNA sequences including the strain HF-25 from the permafrost of Kolyma Lowland. The resulting phylogeny recovered it within the clade Pterista, while forming a separate sister lineage to H2 clade, which only had included freshwater environmental sequences.
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Prokina KI, Radaykina LV, Mylnikov AP. Centrohelid Heliozoans (Centroplasthelida Febvre-Chevalier et Febvre 1984) from Vietnam. BIOL BULL+ 2020. [DOI: 10.1134/s1062359020070158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gerasimova EA, Plotnikov AO, Khlopko YA, Zlatogursky VV. Multiple Euryhaline Lineages of Centrohelids (Haptista: Centroplasthelida) in Inland Saline Waters Revealed with Metabarcoding. J Eukaryot Microbiol 2019; 67:223-231. [DOI: 10.1111/jeu.12776] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/30/2019] [Accepted: 11/15/2019] [Indexed: 02/02/2023]
Affiliation(s)
- Elena A. Gerasimova
- Center of Shared Scientific Equipment “Persistence of Microorganisms” Institute for Cellular and Intracellular Symbiosis Ural Branch of Russian Academy of Sciences Orenburg 460000 Russia
| | - Andrey O. Plotnikov
- Center of Shared Scientific Equipment “Persistence of Microorganisms” Institute for Cellular and Intracellular Symbiosis Ural Branch of Russian Academy of Sciences Orenburg 460000 Russia
| | - Yuri A. Khlopko
- Center of Shared Scientific Equipment “Persistence of Microorganisms” Institute for Cellular and Intracellular Symbiosis Ural Branch of Russian Academy of Sciences Orenburg 460000 Russia
| | - Vasily V. Zlatogursky
- Department of Invertebrate Zoology Faculty of Biology St. Petersburg State University St. Petersburg 199034 Russia
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Zlatogursky VV, Gerasimova EA, Drachko D, Klimov VI, Shɨshkin Y, Plotnikov AO. Pinjata ruminata
gen. et sp. n.—A New Member of Centrohelid Family Yogsothothidae (Haptista: Centroplasthelida) from the Brackish River. J Eukaryot Microbiol 2019; 66:862-868. [DOI: 10.1111/jeu.12737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/12/2019] [Accepted: 03/26/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Vasily V. Zlatogursky
- Department of Invertebrate Zoology Faculty of Biology St. Petersburg State University St. Petersburg 199034 Russia
| | - Elena A. Gerasimova
- Center of Shared Scientific Equipment Institute for Cellular and Intracellular Symbiosis UrB RAS Orenburg 460000 Russia
| | - Daria Drachko
- Department of Invertebrate Zoology Faculty of Biology St. Petersburg State University St. Petersburg 199034 Russia
- Laboratory of Cellular and Molecular Protistology Zoological Institute RAS St. Petersburg 199034 Russia
| | - Vladimir I. Klimov
- Department of Invertebrate Zoology Faculty of Biology St. Petersburg State University St. Petersburg 199034 Russia
| | - Yegor Shɨshkin
- Department of Invertebrate Zoology Faculty of Biology St. Petersburg State University St. Petersburg 199034 Russia
| | - Andrey O. Plotnikov
- Center of Shared Scientific Equipment Institute for Cellular and Intracellular Symbiosis UrB RAS Orenburg 460000 Russia
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