Cucumber Mosaic Virus Associated RNA 5: Causal Agent for Tomato Necrosis

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Science  22 Apr 1977:
Vol. 196, Issue 4288, pp. 429-431
DOI: 10.1126/science.196.4288.429


A small replicating RNA, encapsidated with and dependent on, but not part of the viral genome, modifies disease expression depending on the host. In tomato plants, it causes a lethal necrotic disease which is probably the same as that which, in 1972, destroyed most of the field tomato crop in large regions of the French Alsace.