Morphology and molecular phylogeny of two hypotrichous ciliates (Ciliophora, Spirotrichea) from South Korea, including Hemiurosomoida koreana n. sp.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-12-06 DOI:10.1016/j.ejop.2023.126045

Atef Omar , Ji Hye Moon , Jae-Ho Jung

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Abstract

The living morphology, infraciliature, and molecular phylogeny of a new soil ciliate, Hemiurosomoida koreana n. sp., discovered in a sample collected from a mountain in the northeast of South Korea, were investigated. The new species possesses the characteristics of the genus Hemiurosomoida, i.e., a reduced number of frontal-ventral-transverse cirri, three dorsal kineties of which kineties 1 and 2 each bears a caudal cirrus, and a single dorsomarginal kinety. It is distinguishable from congeners and other similar species by at least one distinct qualitative or quantitative character including the body size, the presence and arrangement of cortical granules, the number of adoral membranelles, marginal cirri, and dorsal dikinetids, or by the arrangement of transverse cirri. Phylogenetic analyses based on 18S rRNA gene sequences also support the assignment of the new species to the non-monophyletic genus Hemiurosomoida. In addition, the living morphology, infraciliature, and the 18S rRNA gene sequence of a Korean population of Nothoholosticha flava were studied.

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韩国两种次毛纤毛虫(纤毛虫、螺旋体纤毛虫)的形态和分子系统发育，包括朝鲜半毛纤毛虫

研究了在韩国东北部山区发现的一种新的土壤纤毛虫——韩国半尾虫(Hemiurosomoida koreana n. sp.)的生活形态、基础设施和分子系统发育。该新种具有半尾卷虫属的特征，即较少的额-腹-横卷虫数量，3个背侧活动(活动1和活动2各有一个尾侧卷虫)和单一的背缘活动。通过至少一种不同的定性或定量特征，包括身体大小、皮质颗粒的存在和排列、口膜、边缘卷毛和背侧二动体的数量，或横向卷毛的排列，将其与同类和其他类似物种区分开来。基于18S rRNA基因序列的系统发育分析也支持将新种归属于非单系属半尾虫属。此外，还研究了韩国Nothoholosticha flava居群的生活形态、基础设施和18S rRNA基因序列。

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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.