Diversity of colacosome-interacting mycoparasites expands the understanding of the evolution and ecology of Microbotryomycetes.

IF 14.1 1区 生物学 Q1 MYCOLOGY Studies in Mycology Pub Date : 2023-11-01 Epub Date: 2023-07-19 DOI:10.3114/sim.2023.106.02
N Schoutteten, A Yurkov, O Leroux, D Haelewaters, D Van Der Straeten, O Miettinen, T Boekhout, D Begerow, A Verbeken
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Abstract

Mycoparasites in Basidiomycota comprise a diverse group of fungi, both morphologically and phylogenetically. They interact with their hosts through either fusion-interaction or colacosome-interaction. Colacosomes are subcellular structures formed by the mycoparasite at the host-parasite interface, which penetrate the parasite and host cell walls. Previously, these structures were detected in 19 fungal species, usually by means of transmission electron microscopy. Most colacosome-forming species have been assigned to Microbotryomycetes (Pucciniomycotina, Basidiomycota), a highly diverse class, comprising saprobic yeasts, mycoparasites, and phytoparasites. In general, these myco- and phytoparasites are dimorphic organisms, with a parasitic filamentous morph and saprobic yeast morph. We investigated colacosome-forming mycoparasites based on fungarium material, freshly collected specimens, and cultures of yeast morphs. We characterised the micromorphology of filamentous morphs, the physiological characteristics of yeast morphs, and inferred phylogenetic relationships based on DNA sequence data from seven loci. We outline and employ an epifluorescence-based microscopic method to assess the presence and organisation of colacosomes. We describe five new species in the genus Colacogloea, the novel dimorphic mycoparasite Mycogloiocolax gerardii, and provide the first report of a sexual, mycoparasitic morph in Colacogloea philyla and in the genus Slooffia. We detected colacosomes in eight fungal species, which brings the total number of known colacosome-forming fungi to 27. Finally, we revealed three distinct types of colacosome organisation in Microbotryomycetes. Taxonomic novelties and typifications: New family: Mycogloiocolacaeae Schoutteten & Yurkov; New genus: Mycogloiocolax Schoutteten & Rödel; New species: Colacogloea bettinae Schoutteten & Begerow, C. biconidiata Schoutteten, C. fennica Schoutteten & Miettinen, C. microspora Schoutteten, C. universitatis-gandavensis Schoutteten & Verbeken, Mycogloiocolax gerardii Schoutteten & Rödel; New combinations: Slooffia micra (Bourdot & Galzin) Schoutteten, Fellozyma cerberi (A.M. Yurkov et al.) Schoutteten & Yurkov, Fellozyma telluris (A.M. Yurkov et al.) Schoutteten & Yurkov; Epitypifications (basionyms): Achroomyces insignis Hauerslev, Platygloea micra Bourdot & Galzin, Platygloea peniophorae Bourdot & Galzin; Lectotypification (basionym): Platygloea peniophorae Bourdot & Galzin Citation: Schoutteten N, Yurkov A, Leroux O, Haelewaters D, Van Der Straeten D, Miettinen O, Boekhout T, Begerow D, Verbeken A (2023). Diversity of colacosome-interacting mycoparasites expands the understanding of the evolution and ecology of Microbotryomycetes. Studies in Mycology 106: 41-94. doi: 10.3114/sim.2022.106.02.

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与菌胶团相互作用的寄生菌的多样性拓展了对小袋霉菌进化和生态学的认识。
基生真菌门中的寄生真菌包括形态和系统发育上多种多样的真菌。它们通过融合作用或菌胶团作用与宿主相互作用。菌胶体是真菌寄生虫在宿主-寄生虫界面上形成的亚细胞结构,可以穿透寄生虫和宿主的细胞壁。以前,通常通过透射电子显微镜在 19 种真菌中检测到过这种结构。大多数形成菌胶团的真菌被归入微囊霉菌纲(Pucciniomycotina,Basidiomycota),这是一类高度多样化的真菌,包括有袋酵母菌、霉菌寄生虫和植物寄生虫。一般来说,这些真菌寄生虫和植物寄生虫都是二态生物,具有寄生丝状形态和吸液酵母形态。我们以菌种材料、新鲜采集的标本和酵母菌形态的培养物为基础,对形成菌胶团的真菌寄生虫进行了研究。我们描述了丝状菌形态的微观形态、酵母菌形态的生理特征,并根据七个位点的 DNA 序列数据推断了系统发育关系。我们概述并采用了一种基于外荧光的显微方法来评估大肠体的存在和组织。我们描述了 Colacogloea 属中的五个新种、新型二态寄生菌 Mycogloiocolax gerardii,并首次报告了 Colacogloea philyla 和 Slooffia 属中的有性寄生菌形态。我们在 8 个真菌物种中检测到了菌胶体,从而使已知形成菌胶体的真菌总数达到 27 种。最后,我们在小袋真菌中发现了三种不同类型的菌胶体组织。新的分类和分型:新科:新科:Mycogloiocolacaeae Schoutteten & Yurkov;新属:Mycogloiocolax Schoutteten & Yurkov:新属:Mycogloiocolax Schoutteten & Rödel;新种:Colacogloea bettinae Schoutteten & Begerow, C. biconidiata Schoutteten, C. fennica Schoutteten & Miettinen, C. microspora Schoutteten, C. universitatis-gandavensis Schoutteten & Verbeken, Mycogloiocolax gerardii Schoutteten & Rödel; New combinations:Slooffia micra (Bourdot & Galzin) Schoutteten, Fellozyma cerberi (A.M. Yurkov et al.) Schoutteten & Yurkov, Fellozyma telluris (A.M. Yurkov et al.) Schoutteten & Yurkov; Epitypifications (basionyms):Achroomyces insignis Hauerslev, Platygloea micra Bourdot & Galzin, Platygloea peniophorae Bourdot & Galzin; Lectotypification (basionym):Platygloea peniophorae Bourdot & Galzin 引文:Schoutteten N, Yurkov A, Leroux O, Haelewaters D, Van Der Straeten D, Miettinen O, Boekhout T, Begerow D, Verbeken A (2023).与大肠菌群相互作用的寄生真菌的多样性拓展了对小袋真菌进化和生态学的认识。Doi: 10.3114/sim.2022.106.02.
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来源期刊
Studies in Mycology
Studies in Mycology 生物-真菌学
CiteScore
35.60
自引率
3.00%
发文量
7
期刊介绍: The international journal Studies in Mycology focuses on advancing the understanding of filamentous fungi, yeasts, and various aspects of mycology. It publishes comprehensive systematic monographs as well as topical issues covering a wide range of subjects including biotechnology, ecology, molecular biology, pathology, and systematics. This Open-Access journal offers unrestricted access to its content. Each issue of Studies in Mycology consists of around 5 to 6 papers, either in the form of monographs or special focused topics. Unlike traditional length restrictions, the journal encourages submissions of manuscripts with a minimum of 50 A4 pages in print. This ensures a thorough exploration and presentation of the research findings, maximizing the depth of the published work.
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