摘要
目的:了解微生物种间竞争与共存机制。方法:将Arthrobotrys属3种捕食线虫真菌以不同方式接种至无菌土壤中,每周进行检出率监测。结果:同时间点混合接种时,弯孢节丛孢(A. musiformis)检出率最高,且能协助其他2个种持续存在至实验末期;不同时间点混合接种时存在优先效应,其持续时长受种间协同作用的影响,奇妙单顶孢(A. thaumasium)的加入对少孢节丛孢(A. oligospora)有正向影响。结论:同属不同种捕食线虫真菌可以竞争性共存;物种的优先效应及协同作用影响着最终的群落结构。
Objective:To gain insight into the competition and coexistence relationships among different microbiology species.Methods:Three nematode-trapping fungi species from genus Arthrobotrys were inoculated into sterile soil by different patterns,and the occurrence frequencies were assessed every week.Results:The occurrence frequencies of A.musiformis was the highest and it can assist the other two species to exist through the whole experiment period when three species were mixed inoculated at same time point.There was priority effect of mixed inoculation at different time points,and its duration was affected by the interspecific synergy.In addition,the inoculation of A.thaumasium had positive effects on the occurrence frequencies value of A.oligospora.Conclusion:Different nematode-trapping fungi species from same genus can coexist competitively,and the priority effects and synergistic effects affect the final community composition.
作者
刘李蕾
邓巍
杨晓燕
肖文
佘容
Liu Lilei;Deng Wei;Yang Xiaoyan;Xiao Wen;She Rong(Institute of Eastern-Himalaya Biodiversity Research,Dali,Yunnan 671003,China;Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China,Dali,Yunnan 671003,China;The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region from Dali University,Dali,Yunnan 671003,China)
出处
《大理大学学报》
2021年第12期59-64,共6页
Journal of Dali University
基金
国家自然科学基金项目(31360013,31760126,U1602262)。
关键词
微生物
生物多样性
协同作用
优先效应
群落构建
microorganism
biodiversity
synergistic effects
priority effect
community assembly
