Itagaki Hiyori, Hosoya Tsuyoshi
aDepartment of Biological Science, Graduate School of Science, The University of Tokyo.
bDepartment of Botany, National Museum of Nature and Science.
Mycoscience. 2022 Aug 11;63(5):181-188. doi: 10.47371/mycosci.2022.07.003. eCollection 2022.
Some Asian fungi are morphologically very similar to European species but belong to different species. A fungus that resembles , which commonly occurs on the petioles of in Europe, was found on the petioles of spp. and other tree leaves in Japan. The apothecia of this fungus were smaller than those of , suggesting that it is a different species. To examine this possibility, specimens of this fungus were collected from various hosts in Japan. A detailed morphological examination elucidated that this fungus differed from in smaller apothecia, marginal cells of the ectal excipulum, and conidia. The ITS sequence difference between this fungus and was 3.3-4.3%, and they formed distinct clades in the phylogenetic analysis, supporting that they are different species. Consequently, a new species, is described. Since an undescribed phialophora-state was observed in the cultures of for the first time, the morphology under culture is also reported in detail.
一些亚洲真菌在形态上与欧洲物种非常相似，但属于不同的物种。一种类似于在欧洲常见于[植物名称1]叶柄上的[真菌名称1]的真菌，在日本的[植物名称2]属植物叶柄和其他树叶上被发现。这种真菌的子囊盘比[真菌名称1]的小，表明它是一个不同的物种。为了检验这种可能性，从日本的各种寄主上采集了这种真菌的标本。详细的形态学检查表明，这种真菌在子囊盘较小、外囊盘被的边缘细胞以及分生孢子方面与[真菌名称1]不同。这种真菌与[真菌名称1]的ITS序列差异为3.3 - 4.3%，并且它们在系统发育分析中形成了不同的分支，支持它们是不同的物种。因此，描述了一个新物种，[新物种名称]。由于首次在[真菌名称1]的培养物中观察到一种未描述的瓶梗型状态，因此也详细报道了其培养条件下的形态。
