Complementary DNA Cloning and Characterization of Cymbidium Ringspot Virus RNA
نویسندگان
چکیده
منابع مشابه
De novo generation of cymbidium ringspot virus defective interfering RNA.
Nicotiana clevelandii plants were inoculated with cymbidium ringspot tombusvirus RNA synthesized in vitro, after which further passages were made by sap inoculation. During the third passage, low Mr RNA species appeared which had the characteristics of deletion mutants of genomic RNA. Sequence analysis of several of these defective interfering RNAs suggested a possible evolution of smaller from...
متن کاملCymbidium ringspot virus harnesses RNA silencing to control the accumulation of virus parasite satellite RNA.
Cymbidium ringspot virus (CymRSV) satellite RNA (satRNA) is a parasitic subviral RNA replicon that replicates and accumulates at the cost of its helper virus. This 621-nucleotide (nt) satRNA species has no sequence similarity to the helper virus, except for a 51-nt-long region termed the helper-satellite homology (HSH) region, which is essential for satRNA replication. We show that the accumula...
متن کاملNucleotide sequence of the 3'-terminal region of cymbidium ringspot virus RNA.
The nucleotide sequences of cDNA clones corresponding to 2569 nucleotides from the 3' end of cymbidium ringspot tombusvirus (CyRSV) RNA were determined. This region contains three open reading frames giving rise to three predicted protein products, two of which had been identified in previous studies. The 3' non-coding region is 351 nucleotides long. The amino acid sequence of CyRSV coat protei...
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The replicase proteins p33 and p92 of Cymbidium ringspot virus (CymRSV) were found to support the replication of defective interfering (DI) RNA in Saccharomyces cerevisiae cells. Two yeast strains were used, differing in the biogenesis of peroxisomes, the organelles supplying the membranous vesicular environment in which CymRSV RNA replication takes place in infected plant cells. Double-labelle...
متن کاملSynthesis of infectious RNA from full-length cloned cDNA to RNA of cymbidium ringspot tombusvirus.
A full-length DNA copy of cymbidium ringspot virus RNA was cloned downstream of a phage T7 promoter. In vitro transcripts had no extra nucleotides at the 3' terminus, and a 5' end likely to be precisely as in genomic RNA. Transcripts were infective when inoculated into test plants. Northern blots from inoculated plants revealed the presence of genomic and subgenomic RNAs, but not of satellite R...
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ژورنال
عنوان ژورنال: Journal of General Virology
سال: 1988
ISSN: 0022-1317,1465-2099
DOI: 10.1099/0022-1317-69-2-401