Abstract
FOUR recent papers from the Rothamsted Experimental Station contribute to our knowledge of virus in the pure state and in the infected cell, and also to etiology. E. M. Crook and F. M. L. Sheffield (Brit. J. Exp. Path., 27, 328 ; 1946) have examined purified tobacco mosaic virus under the electron microscope. Particles from the slowly sedimenting fraction are almost spherical ; but as the sedimentationrate increases, particle-length increases. Treatment with phosphate and varying conditions of storage further affect the state of aggregation. Potato virus X also has particles of variable length.
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Plant Virus Diseases. Nature 161, 945 (1948). https://doi.org/10.1038/161945a0
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DOI: https://doi.org/10.1038/161945a0