摘要
为有效控制和防治大狼把草(Bidens frondosa)入侵危害提供理论依据,采用涂布平板分离法,对井冈山大学校园内及周边的入侵区、绿化区以及耕作区土壤真菌进行分离、鉴定。结果表明:入侵区的土壤真菌数量为1 205CFU/g,分别是绿化区和耕作区的2.24倍和2.30倍。3个样区共分离出真菌17个属,入侵区的优势类群依次为青霉属(Penicillium)、曲霉属(Aspergillus)、毛霉属(Mucor)和木霉属(Trichoderma);3个样区土壤真菌的群落相似性指数属极相似和中等相似水平,土壤真菌的多样性差异不显著。从土壤真菌的角度分析,大狼把草向未入侵区扩散蔓延的可能性较大。
In order to provide the theoretical basis for effective control and prevention in the invasion danger of B. frondosa, the authors used the spread plate method to isolate, separate and preliminarily identify the soil fungi of the selected three sample regions （invaded area, green area and farming area）. Results：The amount of soil fungi in invaded area is 1 205 CEU/g, which is 2.24 times of green area and 2.30 times of farming area. 17 genera of fungi are isolated in the three sample regions, dominant groups are Penicillium, Aspergillus, Mucor and Trichoderma. According to the similarity index analysis, the similarity index of soil fungal communities in the three sample regions belongs to very similar level and medium similar level, the diversity of soil fungi is not significant. From the point of view of soil fungi, B. frondosa is more likely to spread to the un-invaded area.
出处
《贵州农业科学》
CAS
2015年第10期116-118,共3页
Guizhou Agricultural Sciences
基金
江西省科技支撑计划项目"铜尾矿的草-苔藓-藻类联合修复技术"(20112BBG70008)
关键词
大狼把草
入侵性
土壤
真菌多样性
Bidens frondosa
invasiveness
soil
fungal diversity
作者简介
肖春玲（1962-），女，教授，从事土壤微生物学研究。E-mail：xiaochunling@jgsu．edu．cn
