Abstract
We are studying aspects of the interaction of a satellite RNA with its plant host and helper virus. The satellite RNA of tobacco ringspot virus (’sTobRV‘) is similar to a number of other low molecular weight satellite RNAs which have been described for a range of plant viruses (Francki, 1985). They are single stranded RNAs, often less than 400 bases, with no extensive sequence homology with either their plant host or supporting virus. They are dependent upon both the plant host and virus helper for their propagation and encapsidation during infection of the plant by the virus. Satellite RNAs can alter disease expression, with some exacerbating symptoms (eg. Cowpea CARNA5 satellite) while others (eg. STobRV) ameliorate disease.
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Gerlach, W.L., Young, M.J. (1991). Self-Cleavage Activities from viral Satellite RNAs. In: Herrmann, R.G., Larkins, B.A. (eds) Plant Molecular Biology 2. NATO ASI Series, vol 212. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3304-7_7
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DOI: https://doi.org/10.1007/978-1-4615-3304-7_7
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