Rubroshiraia gen. nov., a second hypocrellin-producing genus in Shiraiaceae (Pleosporales)
Rubroshiraia gen. nov., a second hypocrellin-producing genus in Shiraiaceae (Pleosporales)
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Rubroshiraia gen。
DOI：
10.3897/mycokeys.58.36723
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发表时间：
2019-08-28
期刊：
影响因子：
3.3
通讯作者：
Cannon, Paul F.
中科院分区：
文献类型：
--
作者：
Dai, Dong-Qin;Wijayawardene, Nalin N.;Cannon, Paul F.
摘要白菌科是孔壁菌纲多孢目的一个重要科，包括药用真菌和植物病原菌。两个竹红菌素产生分类群，Shiraia bacaricola和一个新属Rubroshiraiagen。十一月，本文介绍了以红花菌（Rubroshiraia besthiae）为代表的几种真菌。通过RAxML（GTR+G模型）生成的最大似然分析，使用组合的SSU，LSU，TEF1和RPB 2序列数据集，显示红设拉子属接近设拉子属，属于设拉子科。本文提供了该科各属的描述、插图和分类检索表。在形态上，红白菌与白菌的区别在于子囊座小而暗，子囊孢子丝状。用高效液相色谱法和分光光度计检测子囊基质代谢产物竹红菌甲素和竹红菌B的产生。测定了HKAS102255（R. besthiae）是HKAS 102253（S. bacaricola）。阐明了R. bestariae和竹红菌Hypocrellabestariae的模式材料，并提供了例证。
Abstract Shiraiaceae is an important family in Pleosporales (Dothideomycetes), which includes medical fungi and plant pathogens. Two hypocrellin-producing taxa, Shiraia bambusicola and a novel genus Rubroshiraiagen. nov., typified by Rubroshiraia bambusae are treated in this article. Maximum likelihood analysis, generated via RAxML (GTR+G model), using a combined SSU, LSU, TEF1 and RPB2 sequence dataset, shows that Rubroshiraia is close to Shiraia and belongs to the family Shiraiaceae. Descriptions, illustrations and a taxonomic key are provided for the genera in Shiraiaceae. Rubroshiraia morphologically differs from Shiraia in having small and dark ascostromata and filiform ascospores. Production of the ascostromatal metabolites, hypocrellin A and B, were examined by HPLC and spectrophotometer. The content of hypocrellin A and B of specimen HKAS 102255 (R. bambusae) is twice that produced by HKAS 102253 (S. bambusicola). To clarify the relationship between R. bambusae and Hypocrella bambusae, type material of the latter was examined and provided the illustration.