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J Gen Virol 69 (1988), 3089-3092; DOI 10.1099/0022-1317-69-12-3089
© 1988 Society for General Microbiology
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Studies on the Replication of a Satellite RNA Associated with Cymbidium Ringspot Virus

Jòzsef Burgyan1 and Marcello Russo2

1 Research Institute for Plant Protection, P.O. Box 102, H-1525 Budapest, Hungary
and2 Dipartimento di Patologia Vegetale, Via Amendola 165/A, Università degli Studi and Centro di Studio del CNR sui Virus e le Virosi delle Colture Mediterranee, 70126 Bari, Italy

The replication of cymbidium ringspot tombusvirus satellite RNA was investigated in Nicotiana clevelandii plants. The temperature at which host plants were grown strongly influenced the synthesis of the satellite RNA; high temperatures were detrimental to, or even inhibited, its multiplication. The most favourable temperature range was 16 to 25 °C. The termini of the satellite RNA were studied and a free hydroxyl group was found at the 3' but not at the 5' end, which may explain why circular forms were not detected in infected tissue. On the other hand, multimers of double-stranded RNA were present, which may have arisen independently of the formation of circular molecules.

Keywords: CyRSV, satellite RNA, replication

Received 31 May 1988; accepted 11 August 1988.


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V. Pantaleo and J. Burgyan
Cymbidium Ringspot Virus Harnesses RNA Silencing To Control the Accumulation of Virus Parasite Satellite RNA
J. Virol., December 1, 2008; 82(23): 11851 - 11858.
[Abstract] [Full Text] [PDF]


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