Identification of a Novel Densovirus in Aphid, and Uncovering the Possible Antiviral Process During Its Infection
文献类型： 外文期刊
作者： Li, Tong 1 ; Li, Haichao 2 ; Wu, Yuqing 1 ; Li, Shaojian 1 ; Yuan, Guohui 2 ; Xu, Pengjun 4 ;
作者机构： 1.Henan Acad Agr Sci, Inst Plant Protect, Henan Key Lab Crop Pest Control, Key Lab Integrated Pest Management Crops Southern, Zhengzhou, Peoples R China
2.Henan Agr Univ, Coll Plant Protect, Zhengzhou, Peoples R China
3.Chinese Acad Sci, Inst Plant Physiol & Ecol, Ctr Excellence Mol Plant Sci, Key Lab Insect Dev & Evolutionary Biol, Shanghai, Peoples R China
4.Chinese Acad Agr Sci, Tobacco Res Inst, Qingdao, Peoples R China
关键词： densoviruses; immune; Sitobion miscanthi; aphid; antiviral process; infection
期刊名称：FRONTIERS IN IMMUNOLOGY （ 影响因子：8.786； 五年影响因子：8.876 ）
ISSN： 1664-3224
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： Densoviruses (DVs) are single-stranded DNA viruses and exclusively happen in invertebrates. Most of DVs reported in insects are pathogenic to their native hosts, however, no pathogenic effect of them has been examined in vertebrates. Hence, DVs are the potential agents used in pest managements. Aphids are the primary vectors of plant viruses. In this study, we identified a novel DV in Chinese Sitobion miscanthi population, provisionally named "Sitobion miscanthi densovirus" (SmDV). Taxonomically, SmDV belongs to genus Hemiambidensovirus. In S. miscanthi, SmDV is hosted in diverse cells and can be horizontally transmitted via wheat feeding. Subject to SmDV, aphids activate their intrinsic antiviral autophagy pathway. Grouped with ascorbate and aldarate metabolism, chlorophyll metabolism, p450 related drug metabolism, and retinoid metabolism, aphids form a complex immune network response to the infection of SmDV. Obviously, it works as elder aphids still alive even they contain the highest examined concentration of SmDV. This study provides a foundation for the identifications of novel DVs, and further improves the understanding of the molecular interactions between insects and DVs.
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