Population Dynamics of Wolbachia in Laodelphax striatellus (Fallen) Under Successive Stress of Antibiotics
文献类型： 外文期刊
作者： Li, Yongteng 1 ; Liu, Xiangdong 2 ; Guo, Huifang 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Plant Protect, 50 Zhongling St, Nanjing 210014, Jiangsu, Peoples R China
2.Nanjing Agr Univ, Dept Entomol, Coll Plant Protect, Nanjing, Jiangsu, Peoples R China
期刊名称：CURRENT MICROBIOLOGY （ 影响因子：2.188； 五年影响因子：2.197 ）
ISSN： 0343-8651
年卷期： 2019 年 76 卷 11 期
页码：
收录情况： SCI
摘要： Wolbachia are the most common symbionts in arthropods; antibiotic treatment for eliminating the symbionts from their host is necessary to investigate the functions. Tetracycline antibiotics are widely used to remove endosymbiont Wolbachia from insect hosts. However, very little has been known on the effects of tetracycline on population size of Wolbachia in small brown planthopper (SBPH), Laodelphax striatellus (Fallen), an important insect pest of rice in Asia. Here, we investigated the dynamics of Wolbachia population density in females and males of L. striatellus by real-time fluorescent quantitative PCR method. The Wolbachia density in females and males of L. striatellus all declined sharply after treatment with 2 mg/mL tetracycline for one generation, and continued to decrease to a level which could not be detected by both qPCR and diagnostic PCR after treated for another generation, then maintained at 0 in the following three generations with continuous antibiotic treatment. Wolbachia infection did not recover in L. striatellus after stopping tetracycline treatment for ten generations. This is the first report to precisely monitor the population dynamics of Wolbachia in L. striatellus during successive tetracycline treatment and after that. The results provide a useful method for evaluating the efficiency of artificial operation of endosymbionts.
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