重论冠孢、外孢和Helminthosporium——新种和属的再分类

IF 14.1 1区 生物学 Q1 MYCOLOGY
H. Voglmayr , W.M. Jaklitsch
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引用次数: 44

摘要

对nuSSU-ITS-LSU部分rDNA、rpb2和tef1序列的多基因矩阵进行了分子系统发育分析,探讨了Corynespora、Exosporium和Helminthosporium三种植物的系统发育关系。根据系统发育分析和形态分析,Exosporium属与Helminthosporium属同义,Corynespora属具有多系关系。证实了smithii与属型C. cassiicola的亲缘关系,并对其形态进行了描述和图解。在Helminthosporium中可以识别出Exosporium tiliae、Corynespora caespitosa、C. endiandrae、C. leucadendri和C. olivacea,而在Helminthosporium中可以识别出splplanchnonema quercicola和S. kalakadense。基于纯培养研究和DNA序列数据,发现异孢Massaria heterospora和意大利Massarinula分别是tilae Helminthosporium和microsorum H.的性变异。欧洲加入的槲寄生被认为与北美类型不同,并被描述为槲寄生。本文首次记录和描述了小孢子孢子虫的性别形态。Helminthosporium的属型,H. velutinum,是最近从型寄主Fagus sylvatica收集的典型。基于序列数据,认为genistae是一个独特的种。据报道,有几个物种的表皮下基质在双孔蝇上呈真菌性,“基质”代表败育和转化的寄主基质或分生瘤:灰芽孢杆菌、微芽孢杆菌、槲皮杆菌和灰芽孢杆菌;核桃木孢子虫对核桃木孢子虫的影响核桃属植物对孢子虫的影响少孢子囊孢菌和孢芽孢菌对孢芽孢菌的影响。新发现的奥地利水蛭寄生于水螅属(amphiphaeria cf.millepunctata)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Corynespora, Exosporium and Helminthosporium revisited – New species and generic reclassification

Corynespora, Exosporium and Helminthosporium revisited – New species and generic reclassification

Corynespora, Exosporium and Helminthosporium revisited – New species and generic reclassification

Corynespora, Exosporium and Helminthosporium revisited – New species and generic reclassification

Molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, rpb2 and tef1 sequences were performed to investigate the phylogenetic relationships of Corynespora, Exosporium and Helminthosporium species. Based on phylogenetic analyses and morphology, the genus Exosporium is synonymised with Helminthosporium, and the genus Corynespora is revealed as polyphyletic. Corynespora smithii is confirmed to be closely related to the generic type C. cassiicola and its morphology is described and illustrated. Exosporium tiliae, Corynespora caespitosa, C. endiandrae, C. leucadendri and C. olivacea are recognised in Helminthosporium, and Splanchnonema quercicola and S. kalakadense are combined in Helminthosporium. Based on pure culture studies and DNA sequence data, Massaria heterospora and Massarinula italica are shown to be the sexual morphs of Helminthosporium tiliae and H. microsorum, respectively. European accessions of Splanchnonema quercicola are recognised to differ from the North American type and are described as Helminthosporium quercinum. The sexual morph of H. oligosporum is recorded and described for the first time. The generic type of Helminthosporium, H. velutinum, is epitypified with a recent collection from the type host, Fagus sylvatica. Based on sequence data, Helminthosporium genistae is recognised as a distinct species. Several species for which subperidermal stromata have been reported are shown to be fungicolous on Diaporthales, the “stromata” representing aborted and transformed host stromata or conidiomata: H. caespitosum, H. microsorum, H. quercicola and H. quercinum on Coryneum spp.; H. hispanicum on conidiomata of Juglanconis juglandina; H. juglandinum on conidiomata of Diaporthe sp.; H. oligosporum and H. tiliae on Hercospora tiliae. The newly described H. austriacum is fungicolous on Amphisphaeria cf. millepunctata (Xylariales).

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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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