CAJ | 학술논문

[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。
[목적]조사이해저니중포식선충진균생물다양성。[방법]채집이해저니616빈,응용전통적분류감정방법분리、순화화감정。[결과]공분리감정3속,22충포식선충진균,기중소포절총포（Arthrobotrysoligospora）,만포절총포（A.musiformis）화장포격지포（Dactylellaleptospora）위우세충,검출솔분별위28.05%,16.04%화8.92%。통과대4개계절포식선충진균다양성분석,발현하、춘화추3계적생물다양성교봉부,다양성지수분별위2.59,2.47화2.34,동계다양성지수비교저,위1.48。재소분리도적포식선충진균중,산점성균망적균충점우세（41.00%）。[결론]이해중존재봉부적포식선충진균자원,기생물다양성구유계절성변화적특점,산점성균망적포식선충진균위이해중포식선충진균적우세충군。
[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% respectively.By analyzing the diversity of nematode-trapping fungi in four seasons,it was found that the biological diversity was richer in summer,spring and autumn,and the diversity indexes were 2.59,2.47 and 2.34 respectively.The diversity index in winter was 1.48 and was lower.Species forming the adhesive nets were predominant;positive rate was 41.00%.[Conclusion]The rich nematode-trapping fungi resource existed in Erhai Lake,and its biological diversity had the seasonal variation characteristic.The nematode-trapping fungi which formed the viscous net were the dominant species in Erhai Lake.