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An alternative perspective on plant small RNA movement
In a recent perspective in "Nature Reviews Molecular Cell Biology", Olivier Voinnet revisits key properties of silencing small RNA movement in plants, arguing that a hitherto underestimated intra-cellular, as opposed to a commonly envisioned inter-cellular, level of control is also crucially involved.
Translation as a novel RNA silencing-based defense against foreign genetic elements
The Voinnet group (IMPB) describes, in "EMBO reports", a hitherto unknown translation-coupled mechanism whereby an evolutionary young Arabidopsis transposon is detected as a foreign entity owing to an unusually intense ribosome stalling event that funnels one of its mRNAs into RNA silencing.
A complete set of Arabidopsis reporter lines for ARGONAUTE (AGO) proteins
The Voinnet group (IMPB) describes, in "Plant physiology", a series of transgenic lines reporting the expression patterns of the 10 AGO paralogs of Arabidopsis. Although AGOs are key effectors of RNA silencing, such an enabling tool-set has been crucially missing in the plant field.