氨基酸和微量元素在虫草菌感染虫草蝠蛾幼虫中的影响  

THE INFLUENCE OF TRACE ELEMENTS AND AMINO ACIDS ON THE LARVAE WERE INFECTED BY CHINESE “INSECT HERB”FUNGS (CORDYCEPS SINENSIS)

作　　者：杨跃雄[1] 陆源[1] 杨大荣[1] 董大志[1] 沈发荣[1] 何远辉[1] 王达瑞 韩灯保[1] 

机构地区：[1]中国科学院昆明动物研究所

出　　处：《Zoological Research》1990年第3期237-242,共6页动物学研究（英文）

基　　金：国家自然科学基金资助项目

摘　　要：本文收集了虫草蝠蛾2—6龄五个龄期组幼虫,四组处于不同发育阶段的虫草菌丝体、被虫草菌感染后的僵虫体、全虫草体及子实体共计12组样品的氨基酸,微量元素分析资料,应用聚类分析方法对各样品变量的分类单元及其贡献值进行初步探讨。结果显示:各样品间的氨基酸、微量元素组成水平各不相同,5、4龄幼虫的总体组成水平在比例关系上更接近全虫草体,虫草菌丝体愈培养至晚期就愈接近子实体的组成。分析认为,5、4龄虫易被感染与其氨基酸、微量元素的组成背景值有关;以培养至晚期的菌丝体或有性生殖孢子更易感染幼虫。The present paper deals with a preliminary exploration for the studies on background values of 18 elements and 17 amino acids in Chinese 'insect herb' (Cordyceps sinensis) by using mathematical method of cluster analysis. From five groups of ghost moths' larvae of different instars, four groups of Chinese 'insect herb' mycelia were grown on the medium, parasitized larva and the sporocarps of Cordyceps sinensis, were divided into 12 genera. According to coefficients of distance matrix among the samples, the 12 genera originally classified can beg reclassified into 3 genera at 8.66 distance level through cluster analysis. The results obtained arc. 1. The constituents of fourth and fifth instar larva, on the elements and amino acids, approached that of Chinese 'insect herb' (Cordyceps sinensis). 2. It is necessary to use the old mycelia of Chinese 'insect herb' fungus, grown on the agar medium, or spores of Cordyceps sinensis as a test sample were the most suitable to infect the hepialid larvae.

关 键 词：虫 草 蝠蛾 幼虫 虫草菌 氨基酸 

分 类 号：Q969.420.8[生物学—昆虫学]