中国土壤与肥料Issue(10)：34-43,10.DOI:10.11838/sfsc.1673-6257.25020
陇中旱农区不同品种马铃薯根际土壤微生物群落特征
Characteristics of microbial community in rhizosphere soil of different potato varieties in dry farming areas of central Gansu province
摘要
Abstract
To reveal the microbial community compositional characteristics of rhizosphere soil in different potato varieties,this study conducted a field positioning experiment in the semi-arid region of the Loess Plateau.High-throughput sequencing and polymerase chain reaction techniques were employed,and the assembly processes of the rhizosphere soil microbial community were analyzed based on a null model.The results showed that there were certain differences in the microbial community composition of different potato variety rhizosphere soils.The dominant bacterial genera in different varieties were Arthrobacter,Nocardioides,and Streptomyces.However,the Longshu10(LS10),Dingshu3(DS3)significantly increased the relative abundance of Streptomyces and Aeromicrobium,while Longshu22(LS22)significantly increased the relative abundance of MND1 compared with the control variety.The dominant fungal genera in the rhizosphere soil of LS10 and Qingshu9(QS9)were Acremonium,while the dominant fungal genus in DS3 was Mortierella,and the dominant genus of other varieties was Chalara.DS3 significantly increased the relative abundance of Lasiobolidium and Phialophora.The sensitive microorganisms in the rhizosphere soil of LS10,Longshu16(LS16),and QS9 were Cellvibrionales(bacteria),Cantharellales(fungi),and Basidiobolales(fungi),respectively.The sensitive microorganisms in the rhizosphere of Longshu14(LS14)included the bacteria Adlerbacteria,and the fungi Orbiliales,Dothideomycetes,and Magnaporthales.The microbial community assembly processes analysis indicated that the bacterial community assembly in the rhizosphere of DS3 and LS14 was dominated by deterministic processes,while the assembly of bacterial and fungal communities in the rhizosphere of other varieties was dominated by random processes.关键词
黄土丘陵/马铃薯/根际/土壤微生物/群落组装Key words
Loess Platean/potato/rhizosphere/soil microorganisms/community assembly引用本文复制引用
姜海洋,罗珠珠,何仁元,李亮亮..陇中旱农区不同品种马铃薯根际土壤微生物群落特征[J].中国土壤与肥料,2025,(10):34-43,10.基金项目
国家重点研发计划项目(2021YFD1900700) （2021YFD1900700）
国家自然科学基金项目(32260550). （32260550）
