中国科学院昆明植物研究所知识管理系统

Fungal Fungi diversity and community composition are mainly depending on soil and vegetation factors. However, the effects of these drivers on different fungal taxonomy and functional guilds remain largely unexplored, especially in subtropical forest ecosystems. The soil was collected from five dominate tree species forests: Castanopsis carlesii, Castanopsis fabri, Cinnamomum chekiangense, Schima superb, and Cunninghamia lanceolata in Wanmulin National Nature Reserve of South-eastern China. Fungal communities in rhizosphere and bulk soil were assessed employing ITS rDNA illumina sequencing. Ascomycota dominated the fungal community and most of them belong to Saprotrophic fungal group. On the genus level, Cladophialophora, Spirosphaera, and Podospora were dominate in soils of Castanopsis carlesii, Castanopsis fabri, and Cinnamomum chekiangense (> 50% of the OTUs), respectively. Analysis of similarity showed that the Ascomycota and Saprotrophic fungi rather than total fungal community were significantly different among the soils with different dominant tree species. Furthermore, Ascomycota community were affected by soil C, C/N, and total K, while Saprotrophic fungi were explained by changes in tree richness, diameter at breast height and soil available P. In conclusion, our analyses revealed that the effects of dominant tree species on soil fungi are largely depend on different taxonomic and functional groups levels.