Pterocystis infundibula sp. n. (Pterocystidae, Pterocystida, Centroplasthelida) – the new species of centrohelid heliozoans from the Gulf of Aqaba, Israel

Q3 Agricultural and Biological Sciences

Protistology Pub Date : 2022-01-01 DOI:10.21685/1680-0826-2022-16-1-1

Y. Shɨshkin, Daria Drachko, Vasily V. Zlatogursky

引用次数: 1

Abstract

A new species of centrohelid heliozoans Pterocystis infundibula sp. n. from the Gulf of Aqaba (Israel) was studied with light and electron microscopy. The cell diameter is 10.53–19.03 (average 13.73) µm. P. infundibula has scales of two distinct types. Plate scales are 1.99–3.02 (av. 2.53) × 1.10–1.54 (av. 1.35) µm in size, flat, oval or slightly ovoid with an axial thickening. Spine scales are 1.39–5.22 (av. 2.88) µm long, with a funnel-shaped base, which is indistinctly continuous with a shaft, demonstrating gradual levels of reduction to the extent of the complete absence. Spine scales are fenestrated with holes of irregular shape and have a thin marginal border. The cells are floating or attached to the substratum, sometimes in aggregates of 2-5 cells. The similarities with and differences from other Pterocystis spp. as well as other centrohelids are discussed.

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infundibula Pterocystis sp. n. (Pterocystis, pterocystia, centrroplasthelida)——以色列亚喀巴湾的一种新物种

用光镜和电子显微镜研究了亚喀巴湾的一新种翼虫(Pterocystis infunddibula sp. n)。电池直径为10.53-19.03(平均13.73)µm。infundbula有两种不同类型的鳞片。板鳞尺寸为1.99-3.02 (av. 2.53) × 1.10-1.54 (av. 1.35) μ m，扁平，椭圆形或略卵圆形，轴向增厚。脊鳞长1.39-5.22 (av. 2.88) μ m，底部呈漏斗状，与轴呈模糊的连续状，显示出逐渐减少的程度，直至完全消失。脊鳞上开有不规则形状的孔，边缘边缘薄。细胞漂浮或附着在基质上，有时为2-5个细胞的聚集。讨论了其与其他翼虫属及其他中心体的异同。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Protistology Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Protistology is one of the five "organism-oriented" journals for researchers of protistan material. The Journal publishes manuscripts on the whole spectrum of lower Eukaryote cells including protozoans, lower algae and lower fungi. Protistology publishes original papers (experimental and theoretical contributions), full-size reviews, short topical reviews (which are supposed to be somewhat "provocative" for setting up new hypotheses), rapid short communications, book reviews, symposia materials, historical materials, obituary notices on famous scientists, letters to the Editor, comments on and replies to published papers. Chronicles will present information about past and future scientific meetings, conferences, etc. THE PECULIARITIES OF THE JOURNAL - reviews, overviews and theoretical manuscripts on systematics, phylogeny, evolution and ecology of protists are favourably accepted - the manuscripts on multicellular organisms concerning their phylogenetic and taxonomic relationships with protists are also accepted - the size of manuscripts is usually not limited