Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov.
Two new species of centrohelid heliozoans Acanthocystis costata and Choanocystis symna from a freshwater lake on Valamo Island and a freshwater pool in St. Petersburg (North-Western Russia) were studied with light and electron microscopy. Sequences of 18S rDNA were obtained for both species. Choanoc...
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ftejournalsojs:oai:ojs.www.ejournals.eu:article/4216 2023-05-15T17:40:39+02:00 Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. Zlatogursky, Vasily V. 2015-09-18 application/pdf http://www.ejournals.eu/sj/index.php/AProto/article/view/4216 pol pol Acta Protozoologica http://www.ejournals.eu/sj/index.php/AProto/article/view/4216/4140 http://www.ejournals.eu/sj/index.php/AProto/article/view/4216 ##submission.copyrightStatement## Acta Protozoologica; Vol 53, No 4 (2014); 313–324 1689-0027 0065-1583 Centrohelids Heliozoa protists systematics ultrastructure external skeleton Acanthocystis costata sp. nov. Choanocystis symna sp. nov info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Recenzowany artykuł 2015 ftejournalsojs 2020-03-01T09:10:54Z Two new species of centrohelid heliozoans Acanthocystis costata and Choanocystis symna from a freshwater lake on Valamo Island and a freshwater pool in St. Petersburg (North-Western Russia) were studied with light and electron microscopy. Sequences of 18S rDNA were obtained for both species. Choanocystis symna has dumbbell-shaped plate scales (4.4–5.0 × 1.62–1.90 µm) and spine scales (3.9–6.7 µm) bearing from 3 to 5 (usually four) short teeth on the distal end. Acanthocystis costata has oval plate scales (1.3–3.7 × 0.9–1.9 µm), bearing numerous granules as well as radial slits and spine scales (2.1–9.5 µm) with 4–6 teeth on the distal end. Acanthocystis costata and Acanthocystis nichollsi are similar in having slit-bearing plate scales and group together on the 18S rDNA tree. The presence of large particles of unknown nature was observed in food vacuoles of Acanthocystis costata. Article in Journal/Newspaper North-Western Russia Portal Czasopism Naukowych (E-Journals) |
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Portal Czasopism Naukowych (E-Journals) |
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ftejournalsojs |
language |
Polish |
topic |
Centrohelids Heliozoa protists systematics ultrastructure external skeleton Acanthocystis costata sp. nov. Choanocystis symna sp. nov |
spellingShingle |
Centrohelids Heliozoa protists systematics ultrastructure external skeleton Acanthocystis costata sp. nov. Choanocystis symna sp. nov Zlatogursky, Vasily V. Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. |
topic_facet |
Centrohelids Heliozoa protists systematics ultrastructure external skeleton Acanthocystis costata sp. nov. Choanocystis symna sp. nov |
description |
Two new species of centrohelid heliozoans Acanthocystis costata and Choanocystis symna from a freshwater lake on Valamo Island and a freshwater pool in St. Petersburg (North-Western Russia) were studied with light and electron microscopy. Sequences of 18S rDNA were obtained for both species. Choanocystis symna has dumbbell-shaped plate scales (4.4–5.0 × 1.62–1.90 µm) and spine scales (3.9–6.7 µm) bearing from 3 to 5 (usually four) short teeth on the distal end. Acanthocystis costata has oval plate scales (1.3–3.7 × 0.9–1.9 µm), bearing numerous granules as well as radial slits and spine scales (2.1–9.5 µm) with 4–6 teeth on the distal end. Acanthocystis costata and Acanthocystis nichollsi are similar in having slit-bearing plate scales and group together on the 18S rDNA tree. The presence of large particles of unknown nature was observed in food vacuoles of Acanthocystis costata. |
format |
Article in Journal/Newspaper |
author |
Zlatogursky, Vasily V. |
author_facet |
Zlatogursky, Vasily V. |
author_sort |
Zlatogursky, Vasily V. |
title |
Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. |
title_short |
Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. |
title_full |
Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. |
title_fullStr |
Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. |
title_full_unstemmed |
Two New Species of Centrohelid Heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. |
title_sort |
two new species of centrohelid heliozoans: acanthocystis costata sp. nov. and choanocystis symna sp. nov. |
publisher |
Acta Protozoologica |
publishDate |
2015 |
url |
http://www.ejournals.eu/sj/index.php/AProto/article/view/4216 |
genre |
North-Western Russia |
genre_facet |
North-Western Russia |
op_source |
Acta Protozoologica; Vol 53, No 4 (2014); 313–324 1689-0027 0065-1583 |
op_relation |
http://www.ejournals.eu/sj/index.php/AProto/article/view/4216/4140 http://www.ejournals.eu/sj/index.php/AProto/article/view/4216 |
op_rights |
##submission.copyrightStatement## |
_version_ |
1766141617829314560 |