Rice Gall Dwarf Virus Promotes the Propagation and Transmission of Rice Stripe Mosaic Virus by Co-infected Insect Vectors.
Rice Gall Dwarf Virus Promotes the Propagation and Transmission of Rice Stripe Mosaic Virus by Co-infected Insect Vectors.
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DOI：
10.3389/fmicb.2022.834712
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发表时间：
2022
影响因子：
5.2
通讯作者：
Wei T
中科院分区：
文献类型：
--
作者：
Jia D;Luo G;Shi W;Liu Y;Liu H;Zhang X;Wei T
水稻条纹花叶病毒（RSMV）和水稻瘤矮病毒（RGDV）是新发现的两种植物呼肠孤病毒，它们都是由背缘叶蝉（Recilia dorsalis）持续传播的。本研究在广东省罗定市的田间调查表明，RSMV和RGDV经常共侵染水稻植株。此外，这种共感染对病毒在水稻植株中的复制潜力和致病性具有协同效应。同时，RSMV和RGDV也共感染了R.在dorsalis载体中，RGDV能显著促进RSMV在共感染载体中的增殖。因此，混合感染显著提高了RSMV的获得和传播效率。背肌然而，这种共感染并不显著影响RGDV在载体中的繁殖。更重要的是，我们还观察到，非病毒R。dorsalis更喜欢取食共感染的水稻植株，这一过程进一步影响了R. dorsalis以增强病毒向水稻韧皮部的释放。这些结果提供了线索，为什么RSMV一直是一个逐渐扩大的问题，造成越来越大的风险，损害水稻生产。研究结果表明，RSMV和RGDV在宿主和载体中的协同作用促进了RSMV的繁殖和传播，这将有助于指导病毒控制策略的制定。
Rice stripe mosaic virus (RSMV), a newly discovered plant cytorhabdovirus, and rice gall dwarf virus (RGDV), a plant reovirus, are transmitted by leafhopper Recilia dorsalis in a persistent-propagative manner. In this study, field surveys in Luoding city, Guangdong province of southern China, showed that RSMV and RGDV frequently co-infected rice plants. Furthermore, this co-infection had a synergistic effect on viral replication potential and pathogenicity in rice plants. Meanwhile, RSMV and RGDV also co-infected R. dorsalis vectors, and RGDV significantly promoted the propagation of RSMV in co-infected vectors. Accordingly, co-infection significantly promoted the acquisition and transmission efficiencies of RSMV by R. dorsalis. However, such co-infection did not significantly affect the propagation of RGDV in vectors. More importantly, we also observed that non-viruliferous R. dorsalis preferred to feed on co-infected rice plants, and this process further affected the feeding behavior of R. dorsalis to enhance viral release into rice phloem. These results provided the clues as to why RSMV had been a gradually expanding problem, creating an increasing risk of damage to rice production. Our findings revealed that synergism between RSMV and RGDV in their host and vector enhanced the propagation and transmission of RSMV, which will help guide the formulation of viral control strategies.
植物呼肠孤病毒的小管利用原调节蛋白来调节昆虫载体中基于肌动蛋白的小管运动
影响因子：
4.6
作者：
Chen Q;Zhang L;Zhang Y;Mao Q;Wei T
通讯作者：
Wei T