云南亚福莱特拟地花菌菌塘土壤微生物群落组成

Composition of shiroes soil microbial community of Albatrellopsis flettioides in Yunnan Province,southwest China

云南松Pinus yunnanensis外生菌根真菌亚福莱特拟地花菌Albatrellopsis flettioides具有较高的营养价值和生态价值,其菌塘土壤微生物对亚福莱特拟地花菌具有重要的影响。本研究对亚福莱特拟地花菌菌塘土壤以及其周围非菌塘土壤群落组成进行分析,探究影响亚福莱特拟地花菌的主要菌群。研究结果表明,亚福莱特拟地花菌菌塘土壤中真菌和细菌α多样性指数存在差异(EG>CG)。菌塘土壤中细菌优势菌纲是伞菌纲Agaricomycetes、双担菌纲Geminibasidiomycetes、散囊菌纲Eurotiomycetes、α变形菌纲Alphaproteobacteria和放线菌纲Actinobacteria;在相关性分析中,乳牛肝菌属Suillus和地花菌属Albatrellus与亚福莱特拟地花菌菌塘土壤样品具有较高相关性,而鹅膏菌属Amanita、Amphinema和红菇属Russula与非菌塘土壤样品具有较高的相关性。在差异类群分析中,共得到35个不同分类水平的真菌和28个不同分类水平的细菌指示类群。

The ectomycorrhizal fungus Albatrellopsis flettioides associated with Pinus yunnanensis has high nutritional and ecological value,and its shiroes soil microorganisms have an important impact on fruiting body development.The community composition of microbiota in the shiroes soil and non-shiroes soils of A.flettioides was analyzed to explore the main microbial groups that affect fruiting bodies production of the fungus.The results showed that there were differences in the fungal and bacterial alpha diversity indices between the shiroes soil and non-shiroes soils(EG>CG).The dominant taxa in the shiroes soil are Agaricomycetes,Geminibasidiomycetes,Eurotiomycetes,Alphaproteobacteria,and Actinobacteria.Correlation analysis revealed a strong correlation Suillus and Albatrellus and the shiroes soil samples of A.flettioides,while Amanita,Amphinema,and Russula were highly correlated with non-shiroes samples.Based on differential group analysis,35 fungal and 28 bacterial indicator groups at different taxonomic levels were recognized.