两种捕食线虫丝孢菌形态多样性研究  

POLYMORPHISM OF TWO UNUSUAL NEMATODE-TRAPPING FUNGI

作　　者：高仁恒[1] 刘杏忠[2] 

机构地区：[1]山西师范大学生物系,临汾041004 [2]中国农科院生防所,北京100081

出　　处：《真菌学报》1996年第1期38-41,共4页

基　　金：国家自然科学基金;中科院微生物所真菌资助项目;中科院地衣系统学开放实验室资助项目

摘　　要：多头节丛孢[Arthrobotrys polycephala(Drechsler)Rifai]和附胞隔指孢[Dactylella haptospora(Drechsler)Zhang et al.)是两种极不常见的捕食线虫丝孢菌,A.polycephala为国内新纪录种。通过对这两种菌的形态观察发现:A.polycephala的大、小分生孢子均可萌发,后代同母体,小分生孢子一般为单端萌发,大分生孢子为两端萌发,并且小分生孢子可以继续发育形成大分生孢子。这两种菌均形成类似厚垣孢子的结构。During the survey of nematode-trapping fungi from Yunnan Province, two unusual species, Arthrobotrys polycephala ( Drechsler) Rifai and Dactylella haptospora ( Drechsler) Zhang, Liu et Cao were obtained. A. polycephala is a new record to China. Morphological characteristics of both species are identical to the original descriptions. Chlaraydospore- like structures were observed in old cultures of both species. After a detail examination of the relationship between macroconidia and microconidia, we found that the microconidia were an independent spore- form and generally germinated at one end, they also can develop into macroconidia. Macroconidia generally germinated at both ends and formed from conidiophores directly or microconidia.

关 键 词：真菌 捕线虫真菌 捕食真菌 丝孢菌 形态多样性 

分 类 号：Q939.504[生物学—微生物学] S476.1[农业科学—农业昆虫与害虫防治]