Description of Gomphonella saldanensis sp. nov. (Bacillariophyceae) from hydromagnesite stromatolites in Salda Lake, Turkey

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2023-04-03 DOI:10.1080/0269249X.2023.2233519

C. Solak, Z. Levkov, P. Hamilton, A. Wishkerman, E. Yılmaz, M. Bąk, L. Peszek, S. Blanco

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Abstract

Lake Salda has a unique environment due to the presence of hydromagnesite stromatolites. Samples collected from the stromatolites contained a new diatom species, Gomphonella saldanensis sp. nov., which is described based on light and scanning electron microscopy. The main character of the taxon is its linear-lanceolate outline with a rostrate headpole and narrowly rounded footpole. The striae are strongly radiate mid-valve, becoming parallel to slightly radiate towards the poles. Elliptical Fourier and Linear Discriminant analyses indicate that there are different shape forms within the same taxon. Based on LM observations, G. saldanensis is similar to Gomphonema lagerheimii f. simplex, G. geisslerae, Gomphonella calcarea, G. olivacea, G. acsiae and G. coxiae. However, G. lagerheimii f. simplex differs with slightly radiate striae throughout the valve. Gomphonella geisslerae has a slightly undulate raphe and linear apices. Larger specimens of G. acsiae are lanceolate, clavate in smaller specimens. The remaining Gomphonella species, G. calcarea, G. coxiae and G. olivacea have broader outlines and lower stria densities.

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土耳其萨尔达湖水藻叠层石中萨尔达鹅膏菌（Bacillarophyceae）的描述

萨尔达湖有一个独特的环境，因为水镁石叠层石的存在。从叠层石中采集的样品含有一种新的硅藻物种，即萨尔丹Gomphonella saldanensis sp.nov.，这是基于光学和扫描电子显微镜描述的。该分类单元的主要特征是其线状披针形的轮廓，具有喙状的头极和狭圆形的足极。纹强烈地向瓣中部辐射，变得平行而轻微地向两极辐射。椭圆傅立叶和线性判别分析表明，在同一分类单元中存在不同的形状形式。根据LM观察，萨尔丹鹅膏菌与普通鹅膏菌（Gomphonela lagerheimii f.simplex）、盖斯雷鹅膏菌、钙斑鹅膏菌和橄榄鹅膏菌相似。然而，G.lagerheiii f.simplex不同之处在于整个瓣膜有轻微的放射纹。艺妓蛾的中缝稍有起伏，顶端呈线状。艾的较大标本为披针形，较小标本为棒状。剩下的Gomphonella物种，G.calcarea、G.coxiae和G.olivacea具有更宽的轮廓和更低的条纹密度。

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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.

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