Phloem transport of plant viruses is an essential step in the setting-up of a complete infection
of a host plant. After an initial replication step in the first cells, viruses spread from cell-to-cell …

RNA silencing is an ancient eukaryotic pathway in which double stranded RNA (dsRNA)
triggers destruction of related RNAs in the cell. Early studies in plants pointed to a role for …

RNA silencing in plants likely exists as a defense mechanism against molecular parasites
such as RNA viruses, retrotransposons, and transgenes. As a result, many plant viruses …

RNA silencing is an evolutionarily conserved surveillance system that occurs in a broad
range of eukaryotic organisms. In plants, RNA silencing acts as an antiviral system; thus …

Virus infections induce the expression of ARGONAUTE1 (AGO1) mRNA and in parallel
enhance the accumulation of miR168 (regulator of AGO1 mRNA). Here, we show that in …

Posttranscriptional gene silencing (PTGS), or RNA silencing, is a sequence-specific RNA
degradation process that targets foreign RNA, including viral and transposon RNA for …

ABSTRACT SDE1/SGS2/RDR6, a putative RNA-dependent RNA polymerase (RdRP) from
Arabidopsis thaliana, has previously been found to be indispensable for maintaining the …

Plant and animal viruses overcome host antiviral silencing by encoding diverse viral
suppressors of RNA silencing (VSRs). Prior to the identification and characterization of their …

All of the protein products of Turnip crinkle virus (TCV; Tombusviridae, Carmovirus) were
tested for their ability to suppress RNA silencing of a reporter gene after transient expression …

Plant virus cell-to-cell movement and subsequent systemic transport are governed by a
series of mechanisms involving various virus and plant factors. Specialized virus encoded …