菌物学报2026，Vol.45Issue(7)：14-23,10.DOI:10.13346/j.mycosystema.260056
中国竹林生境中小塔氏菌属一新种:竹生小塔氏菌
Tapinella bambusicola(Tapinellaceae,Boletales),a new species from bamboo forests in China
摘要
Abstract
Tapinella(Tapinellaceae,Boletales,Basidiomycota)is a small but ecologically important genus of brown-rot fungi,with limited accepted species distributed mainly in temperate regions of the Northern Hemisphere.Based on morphological characteristics and multigene phylogenetic analyses(ITS,nrLSU,tef1-α,rpb1),a new species,Tapinella bambusicola,is described from bamboo forest habitats in Zhushan County,Hubei Province,China.The new species is characterized by large basidiomata(pileus 98-133 mm in diam.,fan-shaped to subfunnelform),an eccentric stipe densely covered with chestnut-brown to blackish-brown velvety tomentum,ovoid to broadly ellipsoid basidiospores(5.0-6.0×3.5-4.0 μm),abundant clavate to fusiform cheilocystidia(18-33×3.0-6.5 μm),and a saprotrophic habit on decayed wood and bamboo litter.Phylogenetic analyses indicate the new species as an independent lineage sister to T.atrotomentosa(ML/BI=100/1.00).Interspecific genetic distances between T.bambusicola and T.atrotomentosa across four gene regions(ITS:0.021 4;nrLSU:0.010 0;tef1-α:0.033 8;rpb1:0.023 6)were substantially greater than intraspecific distances(0.000 8-0.011 1),supporting its recognition as an independent species.T.bambusicola can be clearly distinguished from T.atrotomentosa by its significantly larger pileus(98-133 mm vs.40-50 mm),presence of abundant cheilocystidia(vs.absent),and growth in bamboo forest(vs.decaying wood of Pinus).This study expands the known substrate range of Tapinella,providing new data for research on fungal diversity in bamboo forests.关键词
小塔氏菌科/多基因系统发育/遗传距离/竹林真菌/分类学/新种Key words
Tapinellaceae/multigene phylogeny/genetic distance/bamboo forest fungi/taxonomy/new species引用本文复制引用
周向宇,王锋尖..中国竹林生境中小塔氏菌属一新种:竹生小塔氏菌[J].菌物学报,2026,45(7):14-23,10.基金项目
湖北省教育厅科学研究计划(Q20213101) （Q20213101）
湖北省高等学校优秀中青年科技创新团队计划(T201928) （T201928）
生物资源与生态环境保护十堰市重点实验室2025年度开放基金(SS22503) （SS22503）
竹山县生物多样性本底调查与评估(第二期)(2025HX051)This work was supported by the Scientific Research Program of the Department of Education of Hubei Province(Q20213101),the Hubei Program for Outstanding Young&Middle-aged Innovation Teams in Universities(T201928),the 2025 Open Fund of Shiyan Key Laboratory of Biological Resources and Ecological Environment Protection(SS22503),and the Background Survey and Assessment of Biodiversity in Zhushan County(PhaseⅡ)(2025HX051). （第二期）
