Infectious in vitro transcripts from cloned cDNA of a potyvirus, tobacco vein mottling virus.

L. L. Domier, K. M. Franklin, A. G. Hunt, R. E. Rhoads, J. G. Shaw

Research output: Contribution to journalArticle

Abstract

Full-length cDNA copies of tobacco vein mottling virus (TVMV) RNA were constructed downstream from bacteriophage T7 or T3 RNA polymerase promoters. The plasmids were designed to produce in vitro transcripts containing, respectively, one or two guanosine residues at the 5' terminus not derived from the TVMV sequence and a single cytidine residue at the 3' terminus following the poly(A) tail. Introduction of transcripts from either plasmid into tobacco mesophyll protoplasts resulted in the accumulation of TVMV coat protein and RNA. Neither coat protein nor viral RNA accumulated in protoplasts inoculated with linearized cDNA or with in vitro transcripts synthesized in the absence of 7-methylguanosine(5')triphospho(5')guanosine (m7GpppG). Tobacco seedlings inoculated with native TVMV RNA developed symptoms a few days before those inoculated with in vitro transcripts; however, 3 weeks after inoculation, the symptoms produced by the two inocula were indistinguishable.

Original languageEnglish (US)
Pages (from-to)3509-3513
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume86
Issue number10
DOIs
StatePublished - May 1989
Externally publishedYes

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Potyvirus
Tobacco
Veins
Complementary DNA
Viruses
Protoplasts
Guanosine
RNA Viruses
Capsid Proteins
Plasmids
Cytidine
Viral RNA
Seedlings
In Vitro Techniques
RNA
Messenger RNA

ASJC Scopus subject areas

  • General

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Infectious in vitro transcripts from cloned cDNA of a potyvirus, tobacco vein mottling virus. / Domier, L. L.; Franklin, K. M.; Hunt, A. G.; Rhoads, R. E.; Shaw, J. G.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 86, No. 10, 05.1989, p. 3509-3513.

Research output: Contribution to journalArticle

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