草业学报2026，Vol.35Issue(2)：167-178,12.DOI:10.11686/cyxb2025089
新疆高寒草地3种植物根际土壤真菌群落结构及功能多样性
The community structure and functional diversity of rhizosphere soil fungi of three plant species in the alpine grassland of Xinjiang
摘要
Abstract
This research investigated the rhizosphere fungal community structure and ecological functions among alpine grassland plant species(Taraxacum mongolicum,Poa annua and Daucus carota)in the alpine grassland of Kizilsu Kirgiz Autonomous Prefecture,Xinjiang,using high-throughput sequencing technology.Correlations between soil physicochemical properties and fungal community structure were also analyzed.No significant differences in fungal alpha diversity were found among plant species.However,an analysis of similarities(ANOSIM)test indicated that the fungal community structure of P.annua was significantly different from that of the other two plant species.The dominant fungal phyla were identified as Ascomycota,Basidiomycota,and Mortierellomycota,while the predominant genera included Archaeorhizomyces,Hygrocybe,Thelebolus,and Podospora.LefSe analysis identified Podospora,Hygrocybe,and Archaeorhizomyces as biomarkers significantly associated with T.mongolicum,P.annua,and D.carota,respectively.FUNGuild functional annotation revealed that nutritional modes of fungi across all samples were predominantly saprotrophic(27.1%-28.6%),with undefined saprotroph fungi being the most dominant functional group(18.5%-24.9%).Soil organic matter,alkali-hydrolyzable nitrogen,available phosphorus,and total nitrogen were identified as key determinants influencing fungal diversity.In conclusion,the structure and composition of rhizosphere fungal communities in the alpine grassland of Kizilsu Kirgiz Autonomous Prefecture was specific to plant species.These results provide a scientific basis for analyzing the mechanism of plant-microbe interactions and formulating sustainable management strategies for degraded grassland.关键词
高寒草地/根际土壤真菌/高通量测序/功能预测/植物-微生物互作Key words
alpine grasslands/rhizosphere soil fungi/high-throughput sequencing/function prediction/plant-microbe interactions引用本文复制引用
宋一欣,李明源,麦日艳古·亚生,王继莲..新疆高寒草地3种植物根际土壤真菌群落结构及功能多样性[J].草业学报,2026,35(2):167-178,12.基金项目
国家自然科学基金(32160408,32460428)和第三次新疆综合科学考察项目(2022xjkk0200)资助. （32160408,32460428）
