Taiwania

Pleurodesmospora acaricola sp. nov. and a new record of Pleurodesmospora coccorum (Cordycipitaceae, Ascomycota) in Taiwan Pleurodesmospora is an anamorphic genus with two known species recorded mainly on chitinous substrates such as insects, mites, spiders, and foliicolous fungi in tropical and subtropical areas. A further fungus with similar morphology of conidiophores and conidiogenous cells was found on a dead mite on a living fern (Angiopteris lygodiifolia). Isolated in culture, this fungus produced white dusty colonies. Morphologically, the new strain from the mite differs from the two known Pleurodesmospora species by non-catenate conidia and chlamydospores and is, therefore, proposed as new species. The tea whitefly, Aleurocanthus camelliae, was found as new host of Pleurodesmospora coccorum in Taiwan. The ITS sequences of these isolates are similar to those of other Pleurodesmospora strains. A phylogenetic analysis of a combined ITS and TEF sequence dataset indicates the presence of cryptic species in Pleurodesmospora.

Pleurodesmospora acaricola 新种及台湾新记录的 Pleurodesmospora coccorum (Cordycipitaceae, Ascomycota) Pleurodesmospora 为一不具形态的菌属，已知物种主要记录于几丁质基质上，如昆虫、螨、蜘蛛以及热带和亚热带地区的叶寄生真菌。在一活蕨（Angiopteris lygodiifolia）上的死螨上，发现了一种形态与子囊菌属的产孢丝和产孢细胞相似的真菌。经培养分离，该真菌产生了白色粉末状菌落。形态学上，从螨中分离的新菌株与已知的两种 Pleurodesmospora 物种在非链状分生孢子和厚垣孢子方面存在差异，因此被提议为新种。在 台湾，茶绵蚧 Aleurocanthus camelliae 被发现为 Pleurodesmospora coccorum 的新宿主。这些分离株的 ITS 序列与其他 Pleurodesmospora 菌株的序列相似。基于 ITS 和 TEF 序列数据集的分子系统发育分析表明，Pleurodesmospora 中存在隐秘物种。