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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1995-6-12
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pubmed:abstractText |
Tobacco plants were transformed with the cucumber mosaic cucumovirus (CMV) 3a gene and the in planta-expressed 3a protein was detected immunologically. The 3a protein was predominantly localized in a subcellular fraction corresponding to the cytosol. Two frameshift and four deletion mutants were created within the 3a open reading frame of CMV RNA 3. Five of these mutants, containing an N-terminal, large central, or C-terminal 70-amino-acid deletion could not infect nontransformed tobacco plants, but could infect the 3a transgenic tobacco plants, and generally accumulated to wild-type levels. The sixth mutant, lacking the C-terminal 43 amino acids of the 3a protein, was able to infect nontransformed tobacco plants. A delay in accumulation of viral RNA in both the inoculated and the systemically infected leaves was demonstrated for one of the mutants. Thus, the CMV 3a protein is a virus movement protein, the functions of which can be complemented in a transgenic plant. The CMV 3a transgenic plants were able to complement the long-distance movement of a pseudorecombinant cucumovirus defective for this function in tobacco, as well as the cell-to-cell, but not the long-distance, movement of two other related viruses. However, these transgenic plants were unable to complement the long-distance movement of viruses from several other taxonomic groups that could move cell to cell but not long distance in tobacco.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0042-6822
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
10
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pubmed:volume |
209
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pubmed:geneSymbol |
3a
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
188-99
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7747468-Cucumovirus,
pubmed-meshheading:7747468-Defective Viruses,
pubmed-meshheading:7747468-Gene Expression,
pubmed-meshheading:7747468-Genes, Viral,
pubmed-meshheading:7747468-Genetic Complementation Test,
pubmed-meshheading:7747468-Mutation,
pubmed-meshheading:7747468-Plants, Genetically Modified,
pubmed-meshheading:7747468-Plants, Toxic,
pubmed-meshheading:7747468-RNA, Viral,
pubmed-meshheading:7747468-Tobacco,
pubmed-meshheading:7747468-Viral Proteins
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pubmed:year |
1995
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pubmed:articleTitle |
Complementation of virus movement in transgenic tobacco expressing the cucumber mosaic virus 3a gene.
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pubmed:affiliation |
Department of Plant Pathology, Cornell University, Ithaca, New York 14853, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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