New Hannaea Patrick (Fragilariaceae, Bacillariophyta) Species from Asia, with Comments on the Biogeography of the Genus

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2019-08-13 DOI:10.5252/cryptogamie-algologie2019v40a5

QI Liu, A. Glushchenko, M. Kulikovskiy, Y. Maltsev, J. Kociolek

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引用次数: 8

Abstract

Light and scanning electron microscope observations are provided on four new Hannaea Patrick species from Asia. The areas in Asia the new taxa are described from include Tibet, Mongolia and the Pamir mountainous region in western Asia. Both subgroups of the genus are represented, including H. tibetiana Q. Liu, Glushchenko, Kulikovskiy & Kociolek, sp. nov. and H. pamirensis Glushchenko, Kulikovskiy, Q. Liu & Kociolek, sp. nov., from the group that includes the generitype and has striae composed of single rows of areolae and one rimoportula per valve. Hannaea dorofeyukae Kulikovskiy, Glushchenko, Q. Liu & Kociolek, sp. nov. and H. mongolica Glushchenko, Kulikovskiy, Q. Liu & Kociolek, sp. nov. have striae composed of two rows of areolae and two rimoportulae; one at each end of the valve. The group with two rimoportulae per valve and biseriate striae is known only from Lakes Baikal, Khovsgol and the surrounding areas in Asia. New combinations are proposed for four other species. These taxa are also known from Asia. Two of them are known from Japan, one is from China and one is from Lake Baikal in Russia. It appears that Asia is an important center of diversity for Hannaea.

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标题亚洲刺蕨新种(刺蕨科，硅藻门)及其生物地理研究述评

本文报道了亚洲四种汉纳属新种的光镜和扫描电镜观察结果。亚洲的新分类群包括西藏、蒙古和西亚的帕米尔山区。该属的两个亚群均有代表，包括H. tibetiana Q. Liu, Glushchenko, Kulikovskiy & Kociolek, sp. nov.和H. pamirensis Glushchenko, Kulikovskiy, Q. Liu & Kociolek, sp. nov.，来自包含属型的群，其条纹由单列的茧孔组成，每个瓣有一个裂口。Glushchenko, Kulikovskiy, Q. Liu & Kociolek, sp. 11 .和H. mongolica Glushchenko, Kulikovskiy, Q. Liu & Kociolek, sp. 11 .的条纹由两排乳晕和两排乳晕组成;阀门两端各有一个。每瓣有两个棱孔和双棱纹的群体只在贝加尔湖、Khovsgol湖和亚洲周边地区已知。另外四个物种提出了新的组合。这些分类群也来自亚洲。其中两个来自日本，一个来自中国，一个来自俄罗斯的贝加尔湖。亚洲似乎是汉尼亚的一个重要的多样性中心。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.