Suppr超能文献

对在德国基尔峡湾采集的海洋甲藻三角异帽藻(按照施泰因的分类法,属于甲藻纲)的板片模式进行阐释。

Plate pattern clarification of the marine dinophyte Heterocapsa triquetra sensu Stein (Dinophyceae) collected at the Kiel Fjord (Germany).

作者信息

Tillmann Urban, Hoppenrath Mona, Gottschling Marc, Kusber Wolf-Henning, Elbrächter Malte

机构信息

Alfred Wegener Institut, Helmholz-Zentrum für Polar- und Meeresforschung, Am Handelshafen 12, D - 27570, Bremerhaven, Germany.

Senckenberg am Meer, German Centre for Marine Biodiversity Research (DZMB), Südstrand 44, D - 26382, Wilhelmshaven, Germany.

出版信息

J Phycol. 2017 Dec;53(6):1305-1324. doi: 10.1111/jpy.12584. Epub 2017 Oct 10.

Abstract

One of the most common marine dinophytes is a species known as Heterocapsa triquetra. When Stein introduced the taxon Heterocapsa, he formally based the type species H. triquetra on the basionym Glenodinium triquetrum. The latter was described by Ehrenberg and is most likely a species of Kryptoperidinium. In addition to that currently unresolved nomenclatural situation, the thecal plate composition of H. triquetra sensu Stein (1883) was controversial in the past. To clarify the debate, we collected material and established the strain UTKG7 from the Baltic Sea off Kiel (Germany, the same locality as Stein had studied), which was investigated using light and electron microscopy, and whose systematic position was inferred using molecular phylogenetics. The small motile cells (18-26 μm in length) had a biconical through fusiform shape and typically were characterized by a short asymmetrically shaped, horn-like protuberance at the antapex. A large spherical nucleus was located in the episome, whereas a single pyrenoid laid in the lower cingular plane. The predominant plate pattern was identified as apical pore complex (Po, cp?, X), 4', 2a, 6'', 6c, 5s, 5''', 2''''. The triradiate body scales were 254-306 nm in diameter, had 6 ridges radiating from a central spine, 9 peripheral and 3 radiating spines, and 12 peripheral bars as well as a central depression in the basal plate. Our work provides a clarification of morphological characters and a new, validly published name for this important but yet formally undescribed species of Heterocapsa: H. steinii sp. nov.

摘要

最常见的海洋双鞭藻之一是一种名为三角异帽藻(Heterocapsa triquetra)的物种。当施泰因引入异帽藻属(Heterocapsa)这个分类单元时,他正式将模式种三角异帽藻(H. triquetra)建立在基原异名三角胶质藻(Glenodinium triquetrum)之上。后者由埃伦贝格描述,很可能是一种隐甲藻属(Kryptoperidinium)的物种。除了目前尚未解决的命名问题外,施泰因(1883年)所定义的三角异帽藻(H. triquetra)的壳板组成在过去也存在争议。为了澄清这场争论,我们采集了样本,并从基尔附近的波罗的海(德国,与施泰因研究的地点相同)建立了UTKG7菌株,对其进行了光学显微镜和电子显微镜观察,并通过分子系统发育学推断其系统位置。游动的小细胞(长度为18 - 26微米)呈双锥形至梭形,其典型特征是在反顶端有一个短的不对称角状突起。一个大的球形细胞核位于表质中,而单个蛋白核位于下环带平面。主要的板片模式被确定为顶端孔复合体(Po, cp?, X),4', 2a, 6'', 6c, 5s, 5''', 2''''。三辐射体鳞片直径为254 - 306纳米,有6条从中央棘放射出的脊,9条周边棘和3条放射棘,以及12条周边条和基板上的中央凹陷。我们的工作澄清了形态特征,并为这种重要但尚未正式描述的异帽藻属物种提供了一个新的、有效发表的名称:三角施泰因异帽藻(H. steinii sp. nov.)

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验