Analysis of Fungal Diversity and Community Structure in the Rhizosphere Soil of Phragmites australis in Different Habitats within the Desert-Oasis Transition Zone
This study aimed to investigate fungal diversity and community structure in the rhizosphere soil of Phragmites australis in four different habitats(wetland,saline land,saline-sandy transition,and sandy land)at the desert-oasis margin using high-throughput sequencing.The results showed the presence of 3 phyla,18 classes,51 orders,98 families,128 genera,and 145 species of fungi.At the phylum level,Ascomycota and Basidiomycota emerged as the dominant fungi,with Ascomycota being predominant in saline-sandy transition habitat,and Basidiomycota in wetland habitat,while the relative abundance of Mucoromycota was highest in saline land habitat.At the genus level,Tomentella,Archaeorhizomyces,Pyricularia and Psathyrella were identified as dominant genera in habitats of wetland,saline land,saline-sandy transition,and sandy land,respectively.Significant differences in fungal diversity and species com-position were observed among the four habitats,where both beneficial and harmful fungi coexisted.Wet-land habitat exhibited the highest species richness and diversity,with more dominant species in sandy land habitat and saline-sandy transition habitat.Although species composition was more similar in saline-sandy transition habitat and sandy land habitat,the relationship between environmental factors and microorgan-isms remained unclear.In conclusion,these research findings provided a foundation for understanding the rhizosphere microenvironment of Phragmites australis in different habitats within the Hexi Corridor.
万方数据
维普
