Background Species of the fungal genus Arthrinium (Sordariomycetes, Amphisphaeriales, Apiosporaceae) are often found on bamboo in Asia. They are endophytes, saprobes and important plant pathogens. The genus Arthrinium currently contains 92 species and is widely distributed in North and South America, Europe, Africa, Asia and Oceania. New information In this study, a new species, Arthrinium bambusicola sp. nov., is described and illustrated. The new taxon is characterised by oval to broadly or irregularly round, medium brown, multi-guttulate to roughened, granular conidia, with finely pale slits in the outer edges. Arthrinium bambusicola can be distinguished from the closest related species A. gutiae by its conidial characteristics. Phylogenetic analyses of a four-locus dataset (ITS, LSU, TEF1, TUB2) confirm that A. bambusicola is a distinct new species.

中文翻译：

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Arthrinium bambusicola（真菌，Sordariomycetes），泰国北部 Schizostachyum brachycladum 的新种

背景 在亚洲的竹子上经常发现关节炎属真菌（Sordariomycetes、Amphisphaeriales、 Apiosporaceae）。它们是内生菌、腐生菌和重要的植物病原体。关节炎属目前有92种，广泛分布于南北美洲、欧洲、非洲、亚洲和大洋洲。新信息 在这项研究中，发现了一个新物种，Arthrinium bambusicola sp。11月，进行了描述和说明。新分类群的特征是椭圆形到宽幅或不规则圆形、中等棕色、多齿状到粗糙的颗粒状分生孢子，外缘有细小的浅色裂缝。Arthrinium bambusicola 可以通过其分生孢子特征与最接近的相关物种 A. gutiae 区分开来。四基因座数据集（ITS、LSU、TEF1、TUB2）的系统发育分析证实 A. bambusicola 是一个独特的新物种。