Densovirus infection facilitates plant-virus transmission by an aphid

文献类型： 外文期刊

第一作者： Dong, Yonghao

作者： Dong, Yonghao;Hou, Yuanyuan;Wang, Xiufang;Su, Chenyu;Ren, Guangwei;Xu, Pengjun;Li, Tong;Wilson, Kenneth;Li, Yunhe;Li, Yunhe

作者机构：

关键词： (E)-b-farnesene; locomotor activity; Myzus persicae; Myzus persicae nicotianae densovirus; Potato virus Y

期刊名称：NEW PHYTOLOGIST （ 影响因子：8.3； 五年影响因子：10.2 ）

ISSN： 0028-646X

年卷期： 2024 年 243 卷 4 期

页码：

收录情况： SCI

摘要： center dot The interactions among plant viruses, insect vectors, and host plants have been well studied; however, the roles of insect viruses in this system have largely been neglected. center dot We investigated the effects of MpnDV infection on aphid and PVY transmission using bioassays, RNA interference (RNAi), and GC-MS methods and green peach aphid (Myzus persicae (Sulzer)), potato virus Y (PVY), and densovirus (Myzus persicae nicotianae densovirus, MpnDV) as model systems. center dot MpnDV increased the activities of its host, promoting population dispersal and leading to significant proliferation in tobacco plants by significantly enhancing the titer of the sesquiterpene (E)-beta-farnesene (E beta F) via up-regulation of expression levels of the MpFPPS1 gene. The proliferation and dispersal of MpnDV-positive individuals were faster than that of MpnDV-negative individuals in PVY-infected tobacco plants, which promoted the transmission of PVY. center dot These results combined showed that an insect virus may facilitate the transmission of a plant virus by enhancing the locomotor activity and population proliferation of insect vectors. These findings provide novel opportunities for controlling insect vectors and plant viruses, which can be used in the development of novel management strategies.

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