Tubules of plant reoviruses exploit tropomodulin to regulate actin-based tubule motility in insect vector.
Tubules of plant reoviruses exploit tropomodulin to regulate actin-based tubule motility in insect vector.
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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
DOI:
10.1038/srep38563
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发表时间:
2017-01-09
影响因子:
4.6
通讯作者:
Wei T
中科院分区:
文献类型:
--
作者:
Chen Q;Zhang L;Zhang Y;Mao Q;Wei T
Plant reoviruses are known to exploit virion-packaging tubules formed by virus-encoding non-structural proteins for viral spread in insect vectors. Tubules are propelled by actin-based tubule motility (ABTM) to overcome membrane or tissue barriers in insect vectors. To further understand which insect factors mediate ABTM, we utilized yeast two-hybrid and bimolecular fluorescence complementation assays to test interactions between tubule protein Pns10 of rice dwarf virus (RDV), a plant reovirus, and proteins of its insect vector, the leafhopperNephotettix cincticeps. Tropomodulin (Tmod), vitellogenin, and lipophorin precursor ofN. cincticepdisplayed positive and strong interaction with Pns10, and actin-associated protein Tmod interacted with Pns10 in pull-down assay and the co-immunoprecipitation system. Further, we determined Pns10 tubules associated with Tmod in cultured cells and midgut ofN. cincticep. The expression dynamic of Tmod was consistent with that of Pns10 and the fluctuation of RDV accumulation. Knockdown of Tmod inhibited the Pns10 expression and viral accumulation, thus decreasing the viruliferous rates of leafhopper. These results suggested that Tmod was involved in viral spread by directly interacting with Pns10 tubules, finally promoting RDV infection. This study provided direct evidence of plant reoviruses utilizing an actin-associated protein to manipulate ABTM in insect vectors, thus facilitating viral spread.
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影响因子:
5.4
作者:
Jia, Dongsheng;Mao, Qianzhuo;Wei, Taiyun
通讯作者:
Wei, Taiyun
影响因子:
6.7
作者:
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影响因子:
2.7
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通讯作者:
Gunning, Peter
影响因子:
6.7
作者:
Chen Q;Chen H;Mao Q;Liu Q;Shimizu T;Uehara-Ichiki T;Wu Z;Xie L;Omura T;Wei T
通讯作者:
Wei T
影响因子:
--
作者:
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通讯作者:
Fowler VM