| Title | Identification of Pns6, a putative movement protein of RRSV, as a silencing suppressor |
| Authors | Wu, Jianguo Du, Zhenguo Wang, Chunzheng Cai, Lijun Hu, Meiqun Lin, Qiying Wu, Zujian Li, Yi Xie, Lianhui |
| Affiliation | Fujian Agr & Forestry Univ, Inst Plant Virol, Key Lab Plant Virol Fujian Prov, Fuzhou, Fujian, Peoples R China. Peking Univ, Peking Yale Joint Ctr Plant Mol Genet & Agrobiote, Natl Lab Prot Engn & Plant Genet Engn, Coll Life Sci, Beijing 100871, Peoples R China. |
| Keywords | RICE-RAGGED-STUNT TO-CELL MOVEMENT LONG-DISTANCE MOVEMENT VIRAL SUPPRESSORS ANTIVIRAL IMMUNITY RNA-BINDING VIRUS GENOME ORYZAVIRUS PLANTS |
| Issue Date | 2010 |
| Publisher | virology journal |
| Citation | VIROLOGY JOURNAL.2010,7. |
| Abstract | RNA silencing is a potent antiviral response in plants. As a counterdefense, most plant and some animal viruses encode RNA silencing suppressors. In this study, we showed that Pns6, a putative movement protein of Rice ragged stunt virus (RRSV), exhibited silencing suppressor activity in coinfiltration assays with the reporter green fluorescent protein (GFP) in transgenic Nicotiana benthamiana line 16c. Pns6 of RRSV suppressed local silencing induced by sense RNA but had no effect on that induced by dsRNA. Deletion of a region involved in RNA binding abolished the silencing suppressor activity of Pns6. Further, expression of Pns6 enhanced Potato virus x pathogenicity in N. benthamiana. Collectively, these results suggested that RRSV Pns6 functions as a virus suppressor of RNA silencing that targets an upstream step of the dsRNA formation in the RNA silencing pathway. This is the first silencing suppressor to be identified from the genus Oryzavirus. |
| URI | http://hdl.handle.net/20.500.11897/241676 |
| ISSN | 1743-422X |
| DOI | 10.1186/1743-422X-7-335 |
| Indexed | SCI(E) |
| Appears in Collections: | 生命科学学院 蛋白质与植物基因研究国家重点实验室 |
