Two new species of centrohelid heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov.

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Two new species of centrohelid heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov. / Zlatogursky, V.V.

в: Acta Protozoologica, Том 53, № 4, 2014, стр. 313-324.

Результаты исследований: Научные публикации в периодических изданиях › статья

BibTeX

@article{704335d4d08440099c4e6ca9d79edf7b,

title = "Two new species of centrohelid heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov.",

abstract = "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.",

keywords = "Centrohelids, Heliozoa, protists, systematics, ultrastructure, external skeleton, Acanthocystis costata sp. nov., Choanocystis symna sp. nov.",

author = "V.V. Zlatogursky",

year = "2014",

doi = "10.4467/16890027AP.14.021.1776",

language = "English",

volume = "53",

pages = "313--324",

journal = "Acta Protozoologica",

issn = "0065-1583",

publisher = "Jagiellonian University Press",

number = "4",

}

RIS

TY - JOUR

T1 - Two new species of centrohelid heliozoans: Acanthocystis costata sp. nov. and Choanocystis symna sp. nov.

AU - Zlatogursky, V.V.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - Centrohelids

KW - Heliozoa

KW - protists

KW - systematics

KW - ultrastructure

KW - external skeleton

KW - Acanthocystis costata sp. nov.

KW - Choanocystis symna sp. nov.

U2 - 10.4467/16890027AP.14.021.1776

DO - 10.4467/16890027AP.14.021.1776

M3 - Article

VL - 53

SP - 313

EP - 324

JO - Acta Protozoologica

JF - Acta Protozoologica

SN - 0065-1583

IS - 4

ER -

ID: 7028507