毛乌素沙漠生物土壤结皮真菌群落多样性分析  

CHARACTERIZATION OF FUNGI COMMUNITY STRUCTURE IN BIOLOGICAL SOIL CRUSTS FROM MAOWUSU DESERT

作　　者：赵宇龙[1] 张晓军[1] 金一荻[1] 冯福应[1] 

机构地区：[1]内蒙古农业大学生命科学学院应用与环境微生物研究所,呼和浩特010018

出　　处：《内蒙古农业大学学报（自然科学版）》2011年第2期170-174,共5页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：国家自然科学基金项目(30860015)

摘　　要：真菌参与生物土壤结皮(biological soil crusts,BSCs)的形成,在荒漠化土壤植被恢复中起着举足轻重的作用。本文通过构建真菌18S rDNA文库,分析了毛乌素沙漠BSCs真菌群落组成特征。结果表明:毛乌素沙地BSC s中真菌组成分为两大类群,子囊菌门和担子菌门,子囊菌门占了全部真菌总数的58%,担子菌门占全部真菌的42%。子囊菌门分别有Boeremia、Phaeosphaeria、Trematosphaeria、Dendryphion、Paraconiothyrium、Cryomyces、Davidiellaceae、Fu-sarium、Chaetomium、Coniosporium属。担子菌门的有Cryptococcus、Laetisaria、Rhizoctonia、Malassezia 4个属。本研究对BSCs的形成、发展理论研究以及应用于植被恢复的实践具有一定意义。Fungi play an important role in the development of biological soil crusts and in the processing of vegetation recovery in desertification areas.This study characterized fungi community of the BSCs in Maowusu Desert,by constructing and analyzing 18S rDNA literary.Results showed that： only two phylums of fungi were found in the BSCs of Maowusu Desert,58% of Ascomycota and 42% of Basidiomycota,Boeremia,Phaeosphaeria,Trematosphaeria,Dendryphion,Paraconiothyrium,Cryomyces,Davidiellaceae,Fusarium,Chaetomium,Coniosporium are belong to Ascomycota,Cryptococcus,Laetisaria,Rhizoctonia,Malassezia are belong to Basidiomycota.This is significant for research in development of BSCs and practice in vegetation recovery of desert.

关 键 词：生物土壤结皮 毛乌素 18SrDNA 

分 类 号：Q938.13[生物学—微生物学]