This study identifies URT1 as the main enzyme for mRNA uridylation in Arabidopsis, showing its role in shaping the seed transcriptome and regulating primary dormancy.

The Plant Cell · Feb 1, 2026Peer-reviewedPlant Biology

The TUTase URT1 connects decapping activators and prevents the accumulation of excessively deadenylated mRNAs to avoid siRNA biogenesis

Hélène Scheer, Caroline De Almeida, Emilie Ferrier, Quentin Simonnot, Laure Poirier, David Pflieger, François M. Sement, Sandrine Koechler, Christina Piermaria, Paweł Szczepan Krawczyk, Seweryn Mroczek, Johana Chicher, Lauriane Kühn, Andrzej Dziembowski, Philippe Hammann, , Dominique Gagliardi

This paper identifies URT1 as a TUTase that connects decapping activators and prevents excessive deadenylation of mRNAs, thereby avoiding siRNA biogenesis in Arabidopsis.

Nature Communications · Feb 26, 2021Peer-reviewedMolecular Biology

RST1 and RIPR connect the cytosolic RNA exosome to the Ski complex in Arabidopsis

Heike Lange, Simon Y. A. Ndecky, Carlos Gomez Diaz, David Pflieger, Nicolas Butel, Julie Zumsteg, Lauriane Kühn, Christina Piermaria, Johana Chicher, Michael Christie, Ezgi Süheyla Karaaslan, Patricia L. M. Lang, Detlef Weigel, Hervé Vaucheret, Philippe Hammann, Dominique Gagliardi

This study identifies RST1 and RIPR as proteins connecting the cytosolic RNA exosome to the Ski complex in Arabidopsis, showing their role in RNA quality control.

Nature Communications · Aug 27, 2019Peer-reviewedMolecular Biology