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Viruses 2015, 7(3), 1492-1504; doi:10.3390/v7031492

Facilitation of Rice Stripe Virus Accumulation in the Insect Vector by Himetobi P Virus VP1

1,* and 2,*
College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences; Jiangsu Technical Service Center of Diagnosis and Detection for Plant Virus Diseases, Nanjing 210014, China
These authors contributed equally to this work.
Authors to whom correspondence should be addressed.
Academic Editor: Nikolaos Vasilakis
Received: 14 December 2014 / Revised: 3 March 2015 / Accepted: 17 March 2015 / Published: 23 March 2015
(This article belongs to the Special Issue Impact of the Insect Microbiome on Arbovirus Transmission)
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The small brown planthopper (SBPH) is the main vector for rice stripe virus (RSV), which causes serious rice stripe disease in East Asia. To characterize the virus-vector interactions, the SBPH cDNA library was screened with RSV ribonucleoprotein (RNP) as bait using a GAL4-based yeast two-hybrid system. The interaction between RSV-RNP and the Himetobi P virus (HiPV, an insect picorna-like virus) VP1 protein was identified. The relationships between HiPV and RSV in SBPH were further investigated, and the results showed that the titer of RSV was commonly higher in single insect that exhibited more VP1 expression. After the VP1 gene was repressed by RNA silencing, the accumulation of RSV decreased significantly in the insect, whereas the virus acquisition ability of SBPH was unaffected, which suggests that HiPV VP1 potentially facilitates the accumulation of RSV in SBPH. View Full-Text
Keywords: rice stripe virus; Himetobi P virus; small brown planthopper; accumulation of RSV rice stripe virus; Himetobi P virus; small brown planthopper; accumulation of RSV

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, S.; Ge, S.; Wang, X.; Sun, L.; Liu, Z.; Zhou, Y. Facilitation of Rice Stripe Virus Accumulation in the Insect Vector by Himetobi P Virus VP1. Viruses 2015, 7, 1492-1504.

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