文献类型： 外文期刊
作者： Shi, Xiao-Xiao 1 ; Qiu, Hai-Ping 1 ; Wang, Jiao-yu 1 ; Zhang, Zhen 1 ; Wang, Yan-Li 1 ; Sun, Guo-Chang 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect Microbiol, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou, Peoples R China
2.Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua, Zhejiang, Peoples R China
期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）
ISSN： 1932-6203
年卷期： 2019 年 14 卷 11 期
页码：
收录情况： SCI
摘要： Contamination control and removal are very important technical aspects of microbiological research. Bacterial contamination is very common in fungal cultures. Currently, the commonly used approach for inhibiting bacteria is antibiotic treatment; however, there are drawbacks to using antibiotics, including incomplete removal, limited antibacterial spectra, tendency toward recontamination, effects to fungal strains, and potential risks to the environment. Therefore, in the present work, we developed a new method for bacterial removal from fungi cultured on solid medium, the Cabin-Sequestering (CS) method, based on the different culture characteristics between fungi and bacteria. First, 3-5 mm round or square holes (the "cabin") are excavated on a solid medium plate. The fungal strain containing possible bacterial contamination is inoculated into the cabin. The cabin is then covered with a sterilized coverslip, followed by incubation at the appropriate temperature. After 7-10 days of culturing, fungal hyphae grow out along the edge of the coverslip; however, the contaminating bacteria cannot pass through the space formed between the medium and the coverslip and, thus, remain in the cabin. The newly grown fungal hyphae around the coverslip are re-inoculated into fresh culture plates, where they form bacteria-free fungal colonies. The CS method is easy handling, with a short experimental cycle and rare recontamination. When necessary, it can also be used in combination with antibiotics in bacterial removal operations.
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