两个产孢梗束的节肢动物病原真菌新种  

Two New Species of Entomopathogenic Fungi Producing Synnema

作　　者：邹晓[1] 韩燕峰[1] 梁宗琦[1] 瞿娇娇[1,2] ZOU Xiao;HAN Yanfeng;LIANG Zongqi;QU Jiaojiao(The Institute of Fungus Resources/College of Life Sciences,Guizhou University,Guiyang,Guizhou 550025,China;College of Tea Sciences,Guizhou University,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州大学生命科学学院/真菌资源研究所,贵州贵阳550025 [2]贵州大学茶学院,贵州贵阳550025

出　　处：《山地农业生物学报》2021年第6期1-10,共10页Journal of Mountain Agriculture and Biology

基　　金：国家自然科学基金(31860037、32060038);黔科合基础-ZK[2021]一般080;贵大人基合字(2019)10;贵州省科技计划项目(黔科合基础[2020]1Z009、黔科合支撑[2019]2405);贵大SRT字(2019)356。

摘　　要：本文报道了来自中国贵州省两个产孢梗束的虫生真菌新种。一个为虫草属1新种,新莲蓬虫草Cordyceps neonelumboides sp.nov.。该种寄生于蜘蛛体上,可孕部莲座状,成熟子囊孢子断裂成次生孢子,分隔细胞长15.3~18.0μm。其无性型为刺束梗孢属,瓶梗指状,5.4~7.2μm×0.8~1.0μm;分生孢子长柱状,两端略尖,12.6~13.5μm×1.5~1.8μm,形成长的分生孢子链。另一个为被毛孢属1新种,毛虫被毛孢Hirsutella campes sp.nov.。该种显著特征为菌丝具隔,产孢细胞细长,锥形,或基部圆柱状,21.6~38.4μm×2.4~4.8μm,向上逐渐变细,宽0.9~1.5μm,分生孢子单孢或多孢,橘瓣状、梭形,6.0~8.4μm×2.9~4.3μm。文中讨论了两个新种与相近种之间的区别以及系统发育关系。This paper reported two new species of entomopathogenic fungi producing synnema in Guizhou Province,China.The first new species of entomopathogenic fungi was Cordyceps neonelumboides sp.nov.This fungus was parasitic on the spider body,the stroma was lotus-like,the mature ascospores were broken into secondary spores,and the length of separated cells was 15.3~18.0μm.The anamorph was the genus Akanthomyces,and the conidiogenous cell was 5.4~7.2μm×0.8~1.0μm,cone-shape.The conidia were long cylindrical,slightly pointed at both ends and its size was 12.6~13.5μm×1.5~1.8μm.The other new species was the genus Hirsutella,H.campes sp.nov.The distinctive feature of this species was that the hyphae were septal,the spore-forming cells were slender,tapered,or cylindrical at the base,21.6~38.4μm×2.4~4.8μm.The spore-forming cell was gradually thinning upwards,and the width of cell was 0.9~1.5μm.The conidia were monospores or polyspores,orange petal-like,fusiform,6.0~8.4μm×2.9~4.3μm.This research also discussed the phylogenetic relationship between two new species and similar species.

关 键 词：虫草属 被毛孢属 形态特征 系统发育 分类 

分 类 号：Q939.5[生物学—微生物学]