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A proteinless mutant of tobacco mosaic virus: Evidence against the role of a viral coat protein for interference

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Summary

A coat-protein-free mutant of tobacco mosaic virus as well as mutants with a non-functional coat protein were found to interfere with the establishment and spread of challenging strains of TMV. The results do not support an earlier concept, according to which the genome of a related challenging virus could be captured by the coat protein of the virus introduced in advance. The presence of a viral coat protein is obviously not essential and a competition among the viral genomes for some specific site seems to be a more likely mechanism of cross protection.

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Authors and Affiliations

  1. Institut für Phytomedizin, Universität Hohenheim, D-7000, Stuttgart 70, Federal Republic of Germany

    S. Sarkar & P. Smitamana

Authors
  1. S. Sarkar
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  2. P. Smitamana
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Communicated by G. Melchers

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Sarkar, S., Smitamana, P. A proteinless mutant of tobacco mosaic virus: Evidence against the role of a viral coat protein for interference. Molec. Gen. Genet. 184, 158–159 (1981). https://doi.org/10.1007/BF00271213

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  • DOI: https://doi.org/10.1007/BF00271213

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