PERRAKI, Artemis; BINAGHI, Maria; MECCHIA, Martin A.; GRONNIER, Julien; GERMAN-RETANA, Sylvie; MONGRAND, Sébastien; BAYER, Emmanuelle; ZELADA, Alicia M.; GERMAIN, Veronique

doi:10.1016/j.febslet.2014.03.014

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PERRAKI, Artemis
Laboratoire de biogenèse membranaire [LBM]
Université Sciences et Technologies - Bordeaux 1 [UB]

BINAGHI, Maria
Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] [CONICET]

MECCHIA, Martin A.
Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] [CONICET]

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Article de revue

Ce document a été publié dans

FEBS Letters. 2014, vol. 588, n° 9, p. 1699 - 1705

Wiley

Résumé en anglais

The Triple Gene Block 1 (TGBp1) protein encoded by the Potato virus X is a multifunctional protein that acts as a suppressor of RNA silencing or facilitates the passage of virus from cell to cell by promoting the plasmodesmata opening. We previously showed that the membrane raft protein StRemorin1.3 is able to impair PVX infection. Here, we show that overexpressed StRemorin1.3 does not impair the silencing suppressor activity of TGBp1, but affects its ability to increase plasmodesmata permeability. A similar effect on plasmodesmata permeability was observed with other movement proteins, suggesting that REM is a general regulator of plasmodesmal size exclusion limit. These results add to our knowledge of the mechanisms underlying the StREM1.3 role in virus infection. (C) 2014 Published by Elsevier B. V. on behalf of the Federation of European Biochemical Societies.< Réduire

Mots clés

Plant membrane rafts

Potato virus Y

Plasmodesmata

PROTEIN

REPLICATION

PLANTS

Mots clés en anglais

Remorin

Triple Gene Block protein 1

Potato virus X

Tobacco mosaic virus

Viral suppressor of RNA gene silencing

TO-CELL MOVEMENT

DEGRADATION

ACTIN

P19