Yurchenko Eugene, Wu Sheng-Hua
Department of Biotechnology, Paleski State University, Dnyaprouskai flatylii str. 23, Pinsk, BY-225710, Belarus.
Department of Biology, National Museum of Natural Science, Taichung, 404, Taiwan.
Bot Stud. 2014 Dec;55(1):71. doi: 10.1186/s40529-014-0071-5. Epub 2014 Oct 9.
Hyphoderma setigerum (Fr.) Donk is a white-rot wood-decaying corticoid fungal species. It occurs worldwide from tropical to temperate regions. However, taxonomic studies in recent decades showed that H. setigerum is a species complex with four separate species, before this study.
Hyphoderma pinicola sp. nov. was collected on dead wood of Pinus yunnanensis Franch. in the temperate montane belt at 2200-2400 m altitudes, in Yunnan Province of China. Within the H. setigerum complex this new taxon is distinguished by having 2-sterigmate basidia, long basidiospores, and nearly naked septocystidia. A description and illustrations of this new species are provided, along with a key to five species of the H. setigerum complex. Phylogenetic reconstruction based on 5.8S-ITS2 sequences indicated that H. pinicola belongs to the H. setigerum complex and has a separate position within the clade including H. subsetigerum and H. setigerum s.s. Bayesian inference of phylogeny based on two datasets, ITS and 28S nuclear ribosomal DNA sequences, confirmed the independent status of H. pinicola.
Morphological and phylogenetic studies showed that H. pinicola represents a fifth species of H. setigerum complex.
刚毛皮下菌(Hyphoderma setigerum (Fr.) Donk)是一种引起木材白色腐朽的皮质真菌物种。它在全球热带至温带地区均有分布。然而,近几十年来的分类学研究表明,在本研究之前,刚毛皮下菌是一个包含四个独立物种的复合种。
在海拔2200 - 2400米的中国云南省温带山地带上,于云南松(Pinus yunnanensis Franch.)的枯木上采集到了新种松生皮下菌(Hyphoderma pinicola sp. nov.)。在刚毛皮下菌复合种中,这个新分类单元的特征为具2个小梗的担子、长的担孢子以及几乎裸露的隔囊状体。提供了该新物种的描述和图示,以及一份刚毛皮下菌复合种五个物种的检索表。基于5.8S - ITS2序列的系统发育重建表明,松生皮下菌属于刚毛皮下菌复合种,并且在包括亚刚毛皮下菌(H. subsetigerum)和狭义刚毛皮下菌(H. setigerum s.s.)的分支内具有独立的位置。基于ITS和28S核糖体DNA序列两个数据集的系统发育贝叶斯推断,证实了松生皮下菌的独立地位。
形态学和系统发育研究表明,松生皮下菌是刚毛皮下菌复合种的第五个物种。