MicroRNA-Mediated Host Immune Genes Manipulation Benefits AcMNPV Proliferation in Spodoptera frugiperda
文献类型： 外文期刊
作者： Zhang, Jie 1 ; Zafar, Junaid 1 ; Kong, Jinrong 1 ; Wang, Fei 1 ; Shao, Xuehua 2 ; Zhang, Ruonan 1 ; Pang, Rui 1 ; Xu, Hanhong 1 ; Xu, Xiaoxia 1 ; Jin, Fengliang 1 ;
作者机构： 1.South China Agr Univ, Belt & Rd Technol Ind & Innovat Inst Green & Biol, Coll Plant Protect, Natl Key Lab Green Pesticide, Guangzhou 510642, Peoples R China
2.Minist Agr & Rural Affairs, Guangdong Acad Agr Sci, Key Lab South Subtrop Fruit Biol & Genet Resource, Inst Fruit Tree Res,Guangdong Prov Key Lab Trop &, Guangzhou 510640, Peoples R China
关键词： innate immunity; host-pathogen interaction; Spodoptera frugiperda; baculovirus; miRNAs
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：6.1； 五年影响因子：6.3 ）
ISSN： 0021-8561
年卷期： 2023 年 71 卷 45 期
页码：
收录情况： SCI
摘要： Spodoptera frugiperda is a highly destructive migratory pest that threatens various crops globally. Autographa californica multiple nucleopolyhedrovirus (AcMNPV) is an effective biocontrol agent against lepidopteran pests. Here, we explored the molecular mechanisms underlying the immune response to AcMNPV infection in S. frugiperda. RNA-seq and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) analyses identified the Toll, IMD, and apoptosis pathways as primary immune responses. Investigation into AcMNPV-induced apoptosis in the S. frugiperda cell line (Sf9) revealed that the Toll pathway activated the JNK via the TRAF6 (TNF receptor-associated factor 6) adapter. In addition, AcMNPV-induced the differential expression of several host-encoded microRNAs (miRNAs), with significant negative regulatory effects, on S. frugiperda antiviral immune genes. RNAi and miRNA-mimic mediated silencing of these genes resulted in increased AcMNPV proliferation. Our findings reinforce the potential of AcMNPV as a potent biocontrol agent and further our understanding of developing biotechnology-based targeted pest control agents.
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