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Curr Opin Biotechnol. 2001 Apr;12(2):150-4.

Viral suppressors of RNA silencing.

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  • 1Department of Plant Pathology, University of California, Riverside, CA 92521, USA.


The suppression of RNA silencing by plant viruses represents a viral adaptation to a novel host antiviral defense. Three types of viral suppressors have been identified through the use of a variety of silencing suppression assays. The first two types of suppressor are capable of a complete or partial reversal of pre-existing RNA silencing; the third type does not reverse RNA silencing but can instead prevent its systemic signaling.

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