洱海捕食线虫真菌生物多样性研究(英文)

目的]调查洱海底泥中捕食线虫真菌生物多样性。方法]采集洱海底泥616份,应用传统的分类鉴定方法分离、纯化和鉴定。结果]共分离鉴定3属,22种捕食线虫真菌,其中少孢节丛孢(Arthrobotrysoligospora),弯孢节丛孢(A.musiformis)和长孢隔指孢(Dactylellaleptospora)为优势种,检出率分别为28.05%,16.04%和8.92%。通过对4个季节捕食线虫真菌多样性分析,发现夏、春和秋3季的生物多样性较丰富,多样性指数分别为2.59,2.47和2.34,冬季多样性指数比较低,为1.48。在所分离到的捕食线虫真菌中,产黏性菌网的菌种占优势(41.00%)。结论]洱海中存在丰富的捕食线虫真菌资源,其生物多样性具有季节性变化的特点,产黏性菌网的捕食线虫真菌为洱海中捕食线虫真菌的优势种群。

Study on the Biological Diversity of Nematode-trapping Fungi in Erhai Lake

Objective]The research aimed to investigate the biological diversity of nematode-trapping fungi in the sediment of Erhai Lake.Method]616 pieces of sediments were collected from Erhai Lake.The traditional classification and identification methods were used to isolate,purify and identify.Result]3 genera and 22 species of nematode-trapping fungi were isolated.Arthrobotrys oligospora,A.musiformis and Dactylella leptospora were the dominant species,and their detection rates were 28.05%,16.04% and 8.92% respec...