广西师范大学学报（自然科学版）2025，Vol.43Issue(1)：20-30,11.DOI:10.16088/j.issn.1001-6600.2024041001
米槁根际土壤可培养真菌的促生及拮抗作用研究
Scalp and Antagonistic Effects of Cultivatable Growth Promoting Fungi in Rhizosphere Soil of Cinnamomum migao H.W.Li
摘要
Abstract
To promote and assess the feasibility of artificial cultivation of endangered medicinal plant Cinnamomum migao H.W.Li,this study filtered and evaluated the potential growth-promoting abilities of 109 fungi isolated from the rhizosphere of C.migao.The fungi were filter for their abilities to solubilize phosphate,release potassium,produce indole-3-acetic acid(IAA),and produce siderophores.Plate culture method was employed to evaluate the fungal strains'abilities in phosphate solubilization,potassium release,IAA production,and siderophore production.The fungal strains that simultaneously exhibited all four growth-promoting activities were subjected to pairwise confrontation and evaluated for antagonistic effects and enzymatic activity.The results showed that 44 fungi strains exhibited abilities in phosphate solubilization,potassium release,IAA production,and siderophore production.N.polythalama,T.cucumeris,B.cucumeris,S.boydii,and G.butleri possessed all growth-promoting abilities.In the pairwise confrontation experiments,only the confrontation between B.cibotii LD19 and S.boydii XL1 did not have obvious antagonistic zones or pigment zones,with improved enzymatic activity during their confrontation.There was no significant antagonistic effect between B.cibotii LD19 and S.boydii XL1,and they demonstrated good growth-promoting abilities,making them an ideal combination for a growth-promoting strain formula.关键词
米槁/根际土壤/真菌/促生作用/拮抗作用Key words
Cinnamomum migao/rhizosphere soil/fungi/growth-promoting effect/antagonistic effect分类
农业科技引用本文复制引用
陈敬忠,彭靓,廖小锋,刘济明,童炳丽..米槁根际土壤可培养真菌的促生及拮抗作用研究[J].广西师范大学学报（自然科学版）,2025,43(1):20-30,11.基金项目
贵州省基础研究项目(黔科合基础-ZK[2022]一般314) （黔科合基础-ZK[2022]一般314）
贵州省科技支撑项目(黔科合支撑[2023]一般049) （黔科合支撑[2023]一般049）
贵州中医药大学博士启动基金(贵中医启动[2023]31号) （贵中医启动[2023]31号）
国家自然科学基金联合基金(U1812403-2) （U1812403-2）
