期刊
JOURNAL OF GENERAL VIROLOGY
卷 85, 期 -, 页码 993-999出版社
MICROBIOLOGY SOC
DOI: 10.1099/vir.0.19735-0
关键词
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RNA silencing has a well-established function as an antiviral defence mechanism in plants and insects. Using an Agrobacterium-mediated transient assay, we report here that NS1 protein from human influenza A virus suppresses RNA silencing in plants in a manner similar to P1/HC-Pro protein of Tobacco etch potyvirus, a well-characterized plant virus silencing suppressor. Moreover, we have shown that NS1 protein expression strongly enhances the symptoms of Potato virus X in three different plant hosts, suggesting that NS1 protein could be inhibiting defence mechanisms activated in the plant on infection. These data provide further evidence that an RNA silencing pathway could also be activated as a defence response in mammals.
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