分离自我国云南省竹根七上的刺盘孢属新种  

A new Colletotrichum species from Disporopsis fuscopicta in Yunnan province,China

作　　者：张茜 王勇[2] ZHANG Qian;WANG Yong(Forestry Industry Development Center of Bijiang Forestry Bureau,Tongren 554300,China;Agricultural College,Guizhou University,Guiyang 550025,China)

机构地区：[1]碧江区林业局林业产业发展中心,铜仁554300 [2]贵州大学农学院,贵阳550025

出　　处：《菌物研究》2020年第4期330-334,共5页Journal of Fungal Research

基　　金：国家自然科学基金项目(31972222);贵州省科技厅优秀青年科技人才项目(黔科合平台人才[2019]5641);贵州省科技厅国际合作基地项目(黔科合平台人才[2018]5806)。

摘　　要：从云南省昆明市的竹根七Disporopsis fuscopicta病害叶片上分离获得2株刺盘孢属Colletotrichum真菌。分子系统学研究发现这2个菌株属于1个种并归属于Spaethianum复合种,该种与山麦冬刺盘孢Colletotrichum liriopes Damm,P.F.Cannon&Crous亲缘关系近。形态学比较显示所描述的种与C.liriopes相比分生孢子更宽但附着胞更短,因此将其鉴定为新种,并命名为竹根七刺盘孢,即C.disporopsis sp.nov.Two Colletotrichum strains were isolated from diseased leaves of Disporopsis fuscopicta in Kunming city,Yunnan province. The molecular phylogeny indicated these two strains represented a single species in the C. spaethianum species complex,and have a close relationship to Colletotrichum liriopes. Morphological comparison showed our taxon possessed wider conidia but shorter appressoria than those of C. liriopes. Thus,combining morphology and phylogeny,our strains are recognized here as a new taxon,Colletotrichum disporopsis sp. nov.

关 键 词：无性阶段 多基因 分类学 

分 类 号：Q949.331[生物学—植物学]