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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2010-10-4
pubmed:abstractText
Paprika mild mottle virus Japanese strain (PaMMV-J), a member of the genus Tobamovirus, was originally isolated from sweet pepper plants (Capsicum annuum L.). In experimental conditions, PaMMV-J spread more slowly in inoculated leaves of tomato plants and moved to uninoculated upper leaves at a lower frequency than Tomato mosaic virus (ToMV). In this study, we aimed to identify the viral factors responsible for the low efficiency of local and systemic movement of PaMMV-J in tomato plants. Using several viruses formed as chimeras between PaMMV-J and ToMV, we observed that a chimeric virus (Pa-RepL) having the 126- and 183-kDa replicase genes of ToMV could move systemically in tomato plants, similar to ToMV. Furthermore, analysis of a PaMMV-J mutant (PaMMV-1483C) showed that a single nucleotide substitution in 126- and 183-kDa replicase genes of PaMMV-J enhanced the efficiency of local movement of the virus in inoculated leaves to an extent similar to that of ToMV. However, PaMMV-1483C did not spread over the uninoculated upper leaves. In addition, viral RNA accumulation levels in tomato protoplasts inoculated with Pa-RepL and PaMMV-1483C were lower and similar to those of parental PaMMV-J. These results suggest that the 126- and/or 183-kDa replicases or their coding regions are responsible both for inefficient local and for systemic movements of PaMMV-J in tomato plants.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1872-7492
pubmed:author
pubmed:copyrightInfo
Copyright © 2010 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
153
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
205-11
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
The 126- and/or 183-kDa replicases or their coding regions are responsible both for inefficient local and for systemic movements of Paprika mild mottle virus Japanese strain in tomato plants.
pubmed:affiliation
Laboratory of Plant Pathology and Biotechnology, Kochi University, 200, Monobe, Nankoku, Kochi 783-8502, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't