Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutant

Tobamovirus movement proteins play a determinant role in the establishment of infections in plants, allowing the local movement of viral RNA genome through plasmodesmatas. We expressed the movement protein (MP) of the crucifer- and garlic-infecting Tobacco Mosaic Virus strain Cg (TMV-Cg) in both res...

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Autores principales: DÍAZ-GRIFFERO,FELIPE, ESPINOZA CANCINO,CARMEN, MEDINA ARÉVALO,CONSUELO, ARCE-JOHNSON,PATRICIO
Lenguaje:English
Publicado: Sociedad de Biología de Chile 2006
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200009
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spelling oai:scielo:S0716-976020060002000092006-07-25Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutantDÍAZ-GRIFFERO,FELIPEESPINOZA CANCINO,CARMENMEDINA ARÉVALO,CONSUELOARCE-JOHNSON,PATRICIO movement protein crucifer-infecting tobamovirus viral complementation Tobamovirus movement proteins play a determinant role in the establishment of infections in plants, allowing the local movement of viral RNA genome through plasmodesmatas. We expressed the movement protein (MP) of the crucifer- and garlic-infecting Tobacco Mosaic Virus strain Cg (TMV-Cg) in both resistant Xanthi NN and sensitive Xanthi nn Nicotiana tabacum plants. MP-Cg function was assayed by inoculating transgenic plants with a trafficking-deficient mutant of TMV strain U1. Following infection, local necrotic lesions were developed in resistant transgenic plants, and a systemic infection was produced in sensitive tobaccos. Thus, movement function of the mutant virus was complemented in trans by MP-Cg expressed in transgenic plants, causing the same symptoms as wild-type strain. We demonstrated that the function of MP-U1 could be replaced efficiently by MP-Cg, even though these proteins share only 36% of identity. Similar hydrophobic patterns of MP-Cg and MP-U1 suggests structure and function conservations of both proteins. This work is an example of how two tobamoviruses differing in their host range help to understand viral movement mechanism during the infectioninfo:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.39 n.2 20062006-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200009en10.4067/S0716-97602006000200009
institution Scielo Chile
collection Scielo Chile
language English
topic movement protein
crucifer-infecting tobamovirus
viral complementation
spellingShingle movement protein
crucifer-infecting tobamovirus
viral complementation
DÍAZ-GRIFFERO,FELIPE
ESPINOZA CANCINO,CARMEN
MEDINA ARÉVALO,CONSUELO
ARCE-JOHNSON,PATRICIO
Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutant
description Tobamovirus movement proteins play a determinant role in the establishment of infections in plants, allowing the local movement of viral RNA genome through plasmodesmatas. We expressed the movement protein (MP) of the crucifer- and garlic-infecting Tobacco Mosaic Virus strain Cg (TMV-Cg) in both resistant Xanthi NN and sensitive Xanthi nn Nicotiana tabacum plants. MP-Cg function was assayed by inoculating transgenic plants with a trafficking-deficient mutant of TMV strain U1. Following infection, local necrotic lesions were developed in resistant transgenic plants, and a systemic infection was produced in sensitive tobaccos. Thus, movement function of the mutant virus was complemented in trans by MP-Cg expressed in transgenic plants, causing the same symptoms as wild-type strain. We demonstrated that the function of MP-U1 could be replaced efficiently by MP-Cg, even though these proteins share only 36% of identity. Similar hydrophobic patterns of MP-Cg and MP-U1 suggests structure and function conservations of both proteins. This work is an example of how two tobamoviruses differing in their host range help to understand viral movement mechanism during the infection
author DÍAZ-GRIFFERO,FELIPE
ESPINOZA CANCINO,CARMEN
MEDINA ARÉVALO,CONSUELO
ARCE-JOHNSON,PATRICIO
author_facet DÍAZ-GRIFFERO,FELIPE
ESPINOZA CANCINO,CARMEN
MEDINA ARÉVALO,CONSUELO
ARCE-JOHNSON,PATRICIO
author_sort DÍAZ-GRIFFERO,FELIPE
title Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutant
title_short Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutant
title_full Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutant
title_fullStr Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutant
title_full_unstemmed Expression of the crucifer-infecting TMV-Cg movement protein in tobacco plants complements in trans a TMV-U1 trafficking-deficient mutant
title_sort expression of the crucifer-infecting tmv-cg movement protein in tobacco plants complements in trans a tmv-u1 trafficking-deficient mutant
publisher Sociedad de Biología de Chile
publishDate 2006
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000200009
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AT espinozacancinocarmen expressionofthecruciferinfectingtmvcgmovementproteinintobaccoplantscomplementsintransatmvu1traffickingdeficientmutant
AT medinaarevaloconsuelo expressionofthecruciferinfectingtmvcgmovementproteinintobaccoplantscomplementsintransatmvu1traffickingdeficientmutant
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