来自夏威夷毛伊岛和俄勒冈州哥伦比亚河峡谷的四个新的Orthoseira Thwaites物种，并对该属的截头体形态进行了评论

IF 1.9 3区生物学 Q2 MARINE & FRESHWATER BIOLOGY

Diatom Research Pub Date : 2022-01-02 DOI:10.1080/0269249X.2022.2044911

A. Danz, J. Kociolek

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引用次数: 2

摘要

本文报道了四个硅藻属新种的光、扫描电子和聚焦离子束显微镜观察结果。毛伊岛（夏威夷群岛）描述了三个物种，毛伊岛O.mauiana sp.nov.、夏威夷O.loweana sp.nov..和夏威夷O.hawaiensis，美国俄勒冈州描述了一个物种，俄勒冈O.oregoniana sp.nova.。这四个物种都具有隆突，这是诊断该属的特征，但在许多其他特征上不同，包括刺、洞穴和孔隙的存在和类型。我们将这些物种以及目前被归入该属的其他物种进行比较和对比。我们还将不同的形态与其他提出但目前尚未确认的属进行了比较，如Liparogyra Ehrenberg、Stephanosira Ehrenbeerg和Porocyclicia Ehrenberg.并考虑了这些类群在Orthoseira内的系统关系。

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Four new Orthoseira Thwaites species from Maui, Hawaii, and the Columbia River Gorge, Oregon, with comments on frustular morphology in the genus

Light, scanning electron and focused ion beam microscope observations are presented for four new species of the diatom genus Orthoseira Thwaites. Three species, O. mauiana sp. nov., O. loweana sp. nov. and O. hawaiiensis are described from Maui (Hawaiian Islands), and one species, O. oregoniana sp. nov., is described from Oregon, USA. These four species all possess carinoportulae, the feature that diagnoses the genus, but differ in many other characters, including presence and types of spines, caverns, and pore fields. We compare and contrast these species with each other, and other species currently assigned to the genus. We also compare the different morphologies with other genera proposed, but not currently recognized, such as Liparogyra Ehrenberg, Stephanosira Ehrenberg, and Porocyclia Ehrenberg, and consider the systematic relationships of these groups within Orthoseira.

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来源期刊

Diatom Research 生物-海洋与淡水生物学

CiteScore

2.70

自引率

16.70%

发文量

审稿时长

>12 weeks

期刊介绍： Diatom Research is the journal of the International Society for Diatom Research. The journal is published quarterly, in March, June, September and December, and welcomes manuscripts on any aspect of diatom biology. In addition to full-length papers, short notes and reviews of recent literature are published which need not contain all the sections required for full-length papers; we see these as being necessary to record information which is of interest but which cannot be followed up in detail. Discursive “Opinion” papers are encouraged which would not necessarily follow the normal lay-out. If extremely long papers are to be offered, the author(s) should contact the editors first to discuss any problems. Book reviews, obituaries and meeting reports can be published. All papers will be subject to critical review by the editors and referees, as appropriate to their content. Papers will be accepted in English only.