文献类型： 外文期刊
作者： Sun, Liping 1 ; Zhang, Xueqi 1 ; Xu, Shufa 1 ; Hou, Chunsheng 1 ; Xu, Jin 1 ; Zhao, Dongxiang 2 ; Chen, Yanping 3 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Apicultural Res, Beijing 100093, Peoples R China
2.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Hainan, Peoples R China
3.USDA ARS, Bee Res Lab, Beltsville, MD 20705 USA
4.Apiculture Inst Jiangxi Prov, Nanchang 330052, Jiangxi, Peoples R China
5.Minist Agr, Key Lab Pollinat Ing Insect Biol, Beijing 100093, Peoples R China
关键词： Apis cerana; Chinese sacbrood virus; Herbal medicine; Antiviral agent; Immunity
期刊名称：VIROLOGY JOURNAL （ 影响因子：2.579； 五年影响因子：2.646 ）
ISSN：
年卷期： 2021 年 18 卷 1 期
页码：
收录情况： SCI
摘要： Background Sacbrood is an infectious disease of the honey bee caused by Scbrood virus (SBV) which belongs to the family Iflaviridae and is especially lethal for Asian honeybee Apis cerana. Chinese Sacbrood virus (CSBV) is a geographic strain of SBV. Currently, there is a lack of an effective antiviral agent for controlling CSBV infection in honey bees. Methods Here, we explored the antiviral effect of a Chinese medicinal herb Radix isatidis on CSBV infection in A. cerana by inoculating the 3rd instar larvae with purified CSBV and treating the infected bee larvae with R. isatidis extract at the same time. The growth, development, and survival of larvae between the control and treatment groups were compared. The CSBV copy number at the 4th instar, 5th instar, and 6th instar larvae was measured by the absolute quantification PCR method. Results Bioassays revealed that R. isatidis extract significantly inhibited the replication of CSBV, mitigated the impacts of CSBV on larval growth and development, reduced the mortality of CSBV-infected A. cerana larvae, and modulated the expression of immune transcripts in infected bees. Conclusion Although the mechanism underlying the inhibition of CSBV replication by the medicine plant will require further investigation, this study demonstrated the antiviral activity of R. isatidis extract and provides a potential strategy for controlling SBV infection in honey bees.
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