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. 2014 Mar 26;5:110. doi: 10.3389/fpls.2014.00110

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Copyright © 2014 Mäkinen and Hafrén.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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A model of a virus-specific mechanism to boost viral RNA translation. P0 transcription is induced in PVY and PVA infection (Baebler et al., 2009; Vuorinen et al., 2010 ) and TuMV infection upregulates eIF4E (Léonard et al., 2004), suggesting that the demand for these proteins is increased during natural potyvirus infection. VPg, eIF4E/(iso)4E, and P0 enhance PVA RNA expression (Hafrén et al., 2013), resulting in the production of a large amount of viral proteins, e.g., CP required for virion assembly at later stages of infection.