Unveiling Trichosporon austroamericanum sp. nov.: A Novel Emerging Opportunistic Basidiomycetous Yeast Species.

IF 3.6 3区生物学 Q2 MYCOLOGY

Mycopathologia Pub Date : 2024-05-06 DOI:10.1007/s11046-024-00851-4

Elaine C Francisco, Marie Desnos-Ollivier, Chendo Dieleman, Teun Boekhout, Daniel Wagner de C L Santos, José O Medina-Pestana, Arnaldo L Colombo, Ferry Hagen

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Abstract

During an epidemiological survey, a potential novel species within the basidiomycetous yeast genus Trichosporon was observed. The clinical strain was obtained from a urine sample taken from a Brazilian kidney transplant recipient. The strain was molecularly identified using the intergenic spacer (IGS1) ribosomal DNA locus and a subsequent phylogenetic analysis showed that multiple strains that were previously reported by other studies shared an identical IGS1-genotype most closely related to that of Trichosporon inkin. However, none of these studies provided an in-depth characterization of the involved strains to describe it as a new taxon. Here, we present the novel clinically relevant yeast for which we propose the name Trichosporon austroamericanum sp. nov. (holotype CBS H-24937). T. austroamericanum can be distinguished from other siblings in the genus Trichosporon using morphological, physiological, and phylogenetic characters.

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揭开 Trichosporon austroamericanum sp：一种新出现的机会性基生酵母菌种。

在一次流行病学调查中，发现了一种潜在的新型基枝酵母菌属 Trichosporon。临床菌株是从一名巴西肾移植受者的尿液样本中获得的。利用核糖体 DNA 基因间距（IGS1）位点对该菌株进行了分子鉴定，随后进行的系统发育分析表明，先前由其他研究报告的多个菌株都具有与 Trichosporon inkin 最密切相关的相同 IGS1 基因型。然而，这些研究都没有对相关菌株进行深入鉴定，从而将其描述为一个新的类群。在此，我们将这种新型临床相关酵母菌命名为 Trichosporon austroamericanum sp.T. austroamericanum 可以通过形态学、生理学和系统发育特征与 Trichosporon 属中的其他兄弟姐妹区分开来。

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来源期刊

Mycopathologia 生物-真菌学

CiteScore

6.80

自引率

3.60%

发文量

审稿时长

3 months

期刊介绍： Mycopathologia is an official journal of the International Union of Microbiological Societies (IUMS). Mycopathologia was founded in 1938 with the mission to ‘diffuse the understanding of fungal diseases in man and animals among mycologists’. Many of the milestones discoveries in the field of medical mycology have been communicated through the pages of this journal. Mycopathologia covers a diverse, interdisciplinary range of topics that is unique in breadth and depth. The journal publishes peer-reviewed, original articles highlighting important developments concerning medically important fungi and fungal diseases. The journal highlights important developments in fungal systematics and taxonomy, laboratory diagnosis of fungal infections, antifungal drugs, clinical presentation and treatment, and epidemiology of fungal diseases globally. Timely opinion articles, mini-reviews, and other communications are usually invited at the discretion of the editorial board. Unique case reports highlighting unprecedented progress in the diagnosis and treatment of fungal infections, are published in every issue of the journal. MycopathologiaIMAGE is another regular feature for a brief clinical report of potential interest to a mixed audience of physicians and laboratory scientists. MycopathologiaGENOME is designed for the rapid publication of new genomes of human and animal pathogenic fungi using a checklist-based, standardized format.