Unusual features of pomoviral RNA movement
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Potato mop-top pomovirus (PMTV) is one of a few viruses that can move systemically in plants in the absence of the capsid protein (CP). Pomoviruses encode the triple gene block genetic module of movement proteins (TGB 1, 2, and 3) and recent research suggests that PMTV RNA is transported either as ribonucleoprotein (RNP) complexes containing TGB1 or encapsidated in virions containing TGB1. Furthermore, there are different requirements for local or systemic (long-distance) movement. Research suggests that nucleolar passage of TGB1 may be important for the long-distance movement of both RNP and virions. Moreover, and uniquely, the long-distance movement of the CP-encoding RNA requires expression of both major and minor CP subunits and is inhibited when only the major CP sub unit is expressed. This paper reviews pomovirus research and presents a current model for RNA movement.
Torrance , L , Wright , K M , Crutzen , F , Cowan , G H , Lukhovitskaya , N I , Bragard , C & Savenkov , E I 2011 , ' Unusual features of pomoviral RNA movement ' , Frontiers in Microbiology , vol. 2 , 259 . https://doi.org/10.3389/fmicb.2011.00259
Frontiers in Microbiology
Copyright: © 2011 Torrance, Wright, Crutzen, Cowan, Lukhovitskaya, Bragard and Savenkov. This is an open-access article distributed under the terms of the Creative Commons Attribution Non Commercial License, which permits non-commercial use, distribution, and reproduction in other forums, provided the original authors and source are credited.
DescriptionThis work is partially supported by the Scottish Government’s Rural and Environment Science and Analytical Services (RESAS) Division
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