Rapid screening of RNA silencing suppressors by using a recombinant virus derived from beet necrotic yellow vein virus

Autor: Véronique Ziegler-Graff, D. Bortolamiol, Salah Bouzoubaa, G. Jonard, H. Guilley
Přispěvatelé: Institut de biologie moléculaire des plantes (IBMP), Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)
Rok vydání: 2009
Předmět:
Zdroj: Journal of General Virology
Journal of General Virology, Microbiology Society, 2009, 90, pp.2536-2541
ISSN: 1465-2099
0022-1317
DOI: 10.1099/vir.0.011213-0
Popis: To counteract plant defence mechanisms, plant viruses have evolved to encode RNA silencing suppressor (RSS) proteins. These proteins can be identified by a range of silencing suppressor assays. Here, we describe a simple method using beet necrotic yellow vein virus (BNYVV) that allows a rapid screening of RSS activity. The viral inoculum consisted of BNYVV RNA1, which encodes proteins involved in viral replication, and two BNYVV-derived replicons: rep3–P30, which expresses the movement protein P30 of tobacco mosaic virus, and rep5–X, which allows the expression of a putative RSS (X). This approach has been validated through the use of several known RSSs. Two potential candidates have been tested and we show that, in our system, the P13 protein of burdock mottle virus displays RSS activity while the P0 protein of cereal yellow dwarf virus-RPV does not.
Databáze: OpenAIRE