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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2005-2-21
pubmed:abstractText
Full-length infectious cDNA clones were constructed from the genomic RNAs of three distinct strains (K-G7, K-Ha1 and K-Ho1) of the comovirus Bean pod mottle virus (BPMV). Whereas K-G7, a subgroup I strain, and K-Ha1, a subgroup II strain produce mild mottling, the reassortant strain K-Ho1 (RNA1(I) + RNA2(II)) induces necrotic primary lesions on inoculated leaves of soybean and severe systemic leaf mottling and blistering. Pseudorecombinants of all possible combinations of transcripts were generated and tested for symptom production. Only soybean plants inoculated with combinations having RNA1 derived from the severe strain K-Ho1, regardless of the origin of RNA2, induced severe symptoms, indicating that symptom severity maps to RNA1. Experiments with chimeric RNA1 constructs indicated that the coding regions of the protease co-factor (Co-pro) and the C-terminal half of the putative helicase (Hel) are determinants of symptom severity. Symptom severity correlated well with higher accumulation of viral RNA, but neither the Co-pro nor Hel protein could be demonstrated as a suppressor of RNA silencing.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
333
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
271-83
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
The Bean pod mottle virus proteinase cofactor and putative helicase are symptom severity determinants.
pubmed:affiliation
Department of Plant Pathology, 201F Plant Science Building, 1405 Veterans Drive, University of Kentucky, Lexington, KY 40546-0312, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't