菌物研究2025，Vol.23Issue(3)：190-201,12.DOI:10.13341/j.jfr.2024.1826
黑革菌属——采自中国云南的木耳目新属
A New Corticioid Genus of Auriculariales—Nigrochaete,Collected from Yunnan China
摘要
Abstract
Wood-inhabiting fungi play a fundamental role in ecosystem processes,particularly in the wood degradation and recycling of organic matter.Recognized as pivotal contributors to the intricate balance of forest ecosystems,these fungi are renowned as"key players"due to their enzymatic prowess,abling to effectively break down woody components like lignin,cellulose,and hemicellulose.In this study,a newly proposed wood-inhabiting genus,Nigrochaete gen.nov.and one species,Nigrochaete bambusicola sp.nov.discovered from Southwest China are described on the basis of their morphological and molecular characteristics.The new genus Nigrochaete is an annual basidiocarp fungus:adnate,resupinate,smoke grey to grey color after drying,small and short grandinoid hymenial surface,a monomitic hyphal system,clamped generative hyphae,longitudinally septate basidia with a subellipsoid to ovoid shape,and allantoid basidiospores.Nucleotide sequences of the internal transcribed spacers(ITS)and the large subunit(nrLSU)of nuclear ribosomal DNA(rDNA)gene were obtained from the fungal samples for phylogenetic analyses performed with the maximum likelihood and Bayesian inference methods,which indicated that the Nigrochaete genus formed a monophyletic lineage within the order Auriculariales,mostly close to the genus of Proterochaete.The present study enriches the species diversity of Auriculariales in China that should benefit to protect and sustainably use the natural resources of fungi.关键词
分子系统学/新分类单元/分类学/木腐菌Key words
molecular systematics/new taxa/taxonomy/wood-inhabiting fungi分类
生物学引用本文复制引用
董军红,张剑玲,何思源,陈明兰,赵长林..黑革菌属——采自中国云南的木耳目新属[J].菌物研究,2025,23(3):190-201,12.基金项目
国家自然科学基金项目(32170004),云南省高校森林灾害预警与控制重点实验室研究项目(ZKJS-S-202208) （32170004）
