设施连作条件下六妹羊肚菌伴生菌的鉴定 及防控药剂筛选

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中图分类号：S436.46 文献标识码：A文章编号：0439-8114（2025）06-0097-06DOI：10.14088/j.cnki.issn0439-8114.2025.06.016开放科学（资源服务）标识码（OSID）：

Identification of associated fungus and screening of control agents of Morchella sextelata under greenhouse continuous cropping conditions

YANG Xue-lianab，LUHai-lingab，WANG Shuai²，，WANG Li，SA Wei²，SULi-ping^，GONG Li，WANG Le² （aStateKeyLabatoyflateEolodlu；.eooealEgingKyLaboatoofF Breeding on Qinghai Plateau，Qinghai University，Xining 810o16，China）

Abstract：Afungalassociatethatproliferatedonthesoilsurfaceduringthe5yearcontiuouscultivationofMorchellsextelatawasselectedas theresearh subject.Identificationwasperformedbasedonmorphological characteristicsandthreemolecular markergenes （ITS，LSU，PB2）.emelialgowthatemetodasusedtevaatetheibioryectsndtoxiityvecovetiolpsticidesagaistbothteassociatedfungusndMorchellsextelat.ThresultsindcatedtattheientifedasocatedfungssBotot richumsp.Attherecommendedfieldapplicationconcentrations，theinhibitionrates offivepesticides，namely Kasugamycin + copper oxychloride，hymexazol，chlorothalonil，triadimefon，and mancozeb，on Morchella sextelata were 0.25% ， 5.24% ， 23.94% ， 56.61% ， and 70.32% ，respectively.The corresponding inhibition rates on Botryotrichum sp.were 27.78% ， 18.13% ， 21.64% ， 21.64% ，and 49.71% ，respectively. The EC50 for Morchella sextelata were12.079 8，6.214 6，25.460 9，5.885 0 g/L and 14.3366g/L ，respectively，while thosefor Botryotrichum sp.were 11.076 8，9.487 4，50.9257，18.835 3 g/L and 16.9403g/L ，respectively. Based on a comprehensive analysis of inhibition rates and EC50 ，it was concluded that Kasugamycin+copper oxychloride exhibited strong inhibitory effectsagainstBotryotump.iledemonsatingelaielyowicitytMorhellextelata.refore，asugaioeo chloride could be recommended as a fungicide for field control of Botryotrichum sp.

KeyWords：Morchellsextelata；soiatedfungusdentificatio；reousecontiuouscropg;Botryotricmsp.；sreingof prevention and control agents

羊肚菌（Morchellasp.）属于盘菌目（Pezizales）羊肚菌科（Morchellaceae）羊肚菌属的大型珍稀食用菌。（剩余8731字）