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The miR-184-3p promotes rice black-streaked dwarf virus infection by suppressing Ken in Laodelphax striatellus (Fallén)

文献类型： 外文期刊

作者： Wu, Wei 1 ; Wang, Man 1 ; Deng, Zhiting 1 ; Xi, Minmin 1 ; Dong, Yan 1 ; Wang, Haitao 1 ; Zhang, Jianhua 1 ; Wang, Changchun 3 ; Zhou, Yijun 1 ; Xu, Qiufang 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Plant Protect, Key Lab Food Qual & Safety Jiangsu Prov, State Key Lab Breeding Base, Nanjing, Peoples R China

2.Nanjing Univ Chinese Med, Key Lab Acupuncture & Med Res, Minist Educ, Nanjing, Peoples R China

3.Zhejiang Normal Univ, Coll Life Sci, Jinhua, Peoples R China

4.Anhui Normal Univ, Coll Life Sci, Wuhu, Peoples R China

关键词： miR-184-3p; Laodelphax striatellus; rice black-streaked dwarf virus; Ken; virus infection

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.1； 五年影响因子：4.4 ）

ISSN： 1526-498X

年卷期： 2024 年 80 卷 4 期

页码：

收录情况： SCI

摘要： BACKGROUND: MicroRNAs (miRNAs) play a key role in various biological processes by influencing the translation of target messenger RNAs (mRNAs) through post-transcriptional regulation. The miR-184-3p has been identified as an abundant conserved miRNA in insects. However, less is known about its functions in insect-plant virus interactions.RESULTS: The function of miR-184-3p in regulation of plant viral infection in insects was investigated using a rice black-streaked dwarf virus (RBSDV) and Laodelphax striatellus (Fallen) interaction system. We found that the expression of miR-184-3p increased in L. striatellus after RBSDV infection. Injection of miR-184-3p mimics increased RBSDV accumulation, while treatment with miR-184-3p antagomirs inhibits the viral accumulation in L. striatellus. Ken, a zinc finger protein, was identified as a target of miR-184-3p. Knockdown of Ken increased the virus accumulation and promoted RBSDV transmission by L. striatellus.CONCLUSION: This study demonstrates that RBSDV infection induces the expression of miR-184-3p in its insect vector L. striatellus. The miR-184-3p targets Ken to promote RBSDV accumulation and transmission. These findings provide a new insight into the function of the miRNAs in regulating plant viral infection in its insect vector.(c) 2023 Society of Chemical Industry.

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