一株寄生蛴螬的被毛孢新种.PDF

微生物学通报 Jun. 20, 2017, 44(6): 1370−1376 Microbiology China /wswxtbcn tongbao@ DOI: 10.13344/j.microbiol.china.160617 研究报告 一株寄生蛴螬的被毛孢新种 * 喻阑清 邹晓 张健 韩燕峰 梁宗琦 ( 550025) 摘 要：【目的】对寄生鞘翅目幼虫蛴螬的虫生真菌标本GZUIFR-lgs-1 进行描述和鉴定。【方法】 基于形态特征比较结合系统发育分析进行鉴定。【结果】该种通过形态特征产孢细胞单生，透明， 多数与营养菌丝成近直角，基部具疣且明显膨大(19−27) μm×(2.7−3.6) μm ，颈部长(12.0−14.5) μm ， 顶端呈螺旋状扭曲，偶有再育；分生孢子透明、光滑，橘瓣状，单生或偶有双生，外具黏液，大 小为(4.8−6.0) μm×(2.4−3.6) μm ，而与被毛孢属已知种相区别。基于ITS 位点的系统发育分析支 持形态学鉴定的结果。【结论】综合形态特征比较及系统发育分析结果，该种为被毛孢属的一个 新的分类单元，命名为雷公山被毛孢，Hirsutella leigongshanensis 。 关键词：虫生真菌，被毛孢，新种，蛴螬 A new Hirsutella species parasitic on grub larvae (Coleoptera) * YU Lan-Qing ZOU Xiao ZHANG Jian HAN Yan-Feng LIANG Zong-Qi (The Institute of Fungus Resources, College of Life Sciences, Guizhou University, Guiyang, Guizhou 550025, China) Abstract: [Objective] A new entomogenous fungi (GZUIFR-lgs-1), which was parasitic on grub larvae was identified and described. [Methods] The analysis mainly based on phenotypic characteristics and molecular phylogeny. [Results] The strain distinguished from the other Hirsutella species by phialides solitary, hyaline, occasionally proliferation and near right angle to hyphae, with distinctly swollen and verrucose base (19−27) μm×(2.7−3.6) μm, twisting in helices at the apex, neck (12.0−14.5) μm long; Conidia hyaline and smooth in mucous sheath, like orange segments (4.8−6.0) μm×(2.4−3.6) μm, single or occasionally in pairs. The result of phylogenic analysis based on