Entomopathogenic fungi isolated from Yukon soil against unfed larvae of the winter tick,Dermacentor albipictus

作     者：Dobrotka CJ Krieger M Oakley M Trotter J Rodell BM Stein KL Klever LA Fisher KA Yoder JA 

作者机构：Department of BiologyWittenberg UniversitySpringfieldOH45501USA Champagne and Aishihik First NationsHaines JunctionYTY0B 1L0CAN Oakley Veterinary ServicesHainesAK99827USA 

出 版 物：《Studies in Fungi》 (真菌研究（英文）)

年 卷 期：2019年第4卷第1期

页      面：123-134页

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

基　　金：Wittenberg University 

主　　题：Biological control mycoflora moose tick elk tick horse tick Canada Alaska 

摘      要：Fungal composition of Yukon soil samples consisted of 29 soil saprobes common to acidified forest,subarctic *** of the fungi identified are psychrotrophs,capable of growth at both 4℃ and 20℃.Of these,a total of 17 fungi were found to be entomopathogenic by winter tick(Dermacentor albipictus)larval bioassays:Aspergillus flavus,Beauveria,namely ***,Mucor,Paecilomyces yielded~70%larval mortality and the remainder,mostly Mortierella and Penicillium,averaged~40%larval *** where elk(Cervus elaphus canadensis)are observed had an overall greater quantity,and diversity of entomopathogenic soil fungi than sites where elk are not *** diversity of fungi at elk-inhabited sites is likely a product of warmer soil microclimate(hillsides where elk are seen,lose snow earlier than other areas),animal presence,and increased nutrient *** conclude that Yukon soils contain fungi that naturally regulate populations of *** fungi are archived at the Wittenberg University Fungus Collection,Springfield,OH,USA.