Abstract
STUDIES on the rosette disease of tobacco, first recorded by Wickens1, have shown that the disease is a complex one consisting of two undescribed viruses for which the names 'vein-distorting' and 'mottle' viruses respectively have been suggested2. The vein-distorting virus cannot be transmitted mechanically but is dependent upon an aphis vector; whereas the mottle virus is easily transmitted by sap-inoculation. Investigation of the insect-relationships of these two viruses3 has revealed some interesting facts. All attempts to transmit the mottle virus by aphis vectors have failed, unless it is accompanied in the plant by the vein-distorting virus.
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References
Wickens, G. M., Rhodes Agric. J., 35, 181 (1938).
Smith, Kenneth M., Parasit., in the press.
Smith, Kenneth M., and Lea, D. E., Parasit., in the press.
Clinch, P., Loughnane, J. B., and Murphy, P. A., Sci. Proc. Roy. Dublin Soc., 21, 431 (1936).
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SMITH, K. Transmission by Insects of a Plant Virus Complex. Nature 155, 174 (1945). https://doi.org/10.1038/155174a0
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DOI: https://doi.org/10.1038/155174a0
