中文摘要：

目的：在对嗜热真菌的资源调查中,分离到嗜热真菌20株。方法：通过形态学比较研究并结合分子分析方法。结果：鉴定出嗜热真菌4种,即杜邦青霉Penicillium dupontii、疏绵状嗜热丝孢菌Thermomyceslanuginosus、嗜热子囊菌Thermoascus aurantiacus、嗜热革节孢Scytalidium thermophilum。此外,还分离到耐热真菌1种,鉴定为不规则头梗霉Cephaliophora irregularis,为中国新记录种。结论：这些研究结果新增了嗜热真菌在中国的分布记载,丰富了我国西南地区嗜热真菌的菌种资源库,另外对分离获得的嗜热真菌进行木聚糖酶活性测试,发现嗜热子囊菌为高产木聚糖酶活力的菌株。

英文摘要：

Objective： To investigate and identify the species of thermophilic fungi according to morphology characteristic and identification.Methods： The illustrated description of species was supplied.Results： Four species of thermorphilic fungi were identified,among of them,including Penicillium dupontii,Thermomyces lanuginosus,Thermoascus aurantiacus and Scytalidium thermophilum.One thermotolarent fungus was also isolated and identified,that is Cephaliophora irregularis,which become new record for the first time in China.Conclusion： Among of the obtained strains,Thermoascus aurantiacus Gxu03 was the best strain producing the highest xylanase activity.