Plants employ small RNA-mediated posttranscriptional gene silencing as a virus defense
mechanism. In response, plant viruses encode proteins that can suppress RNA silencing, but …

Plants employ post-transcriptional gene silencing (PTGS) as an antiviral defense response [1].
In this mechanism, viral-derived small RNAs are incorporated into the RNA-induced …

Posttranscriptional gene silencing (PTGS) mediated by siRNAs is an evolutionarily conserved
antiviral defense mechanism in higher plants and invertebrates. In this mechanism, viral-…

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-…

Beet western yellows luteovirus is obligately transmitted by the aphid Myzus persicae in a
circulative, non‐propagative fashion. Virus movement across the epithelial cells of the …

Viruses in the family Luteoviridae have positive-sense RNA genomes of around 5.2 to 6.3 kb,
and they are limited to the phloem in infected plants. The Luteovirus and Polerovirus …

Virions of beet western yellows luteovirus contain a major capsid protein (P22.5) and a
minor readthrough protein (P74), produced by translational readthrough of the major capsid …

Beet western yellows luteovirus, like other luteoviruses, cannot be transmitted to host plants
by mechanical inoculation but requires an aphid vector, a feature that has heretofore …

Aphid transmission of poleroviruses is highly specific, but the viral determinants governing
this specificity are unknown. We used a gene exchange strategy between two poleroviruses …

RNA silencing is a major antiviral defense mechanism in plants and invertebrates. Plant
ARGONAUTE1 (AGO1) is pivotal in RNA silencing, and hence is a major target for counteracting …