Summary
A temperature resistant and two different temperature sensitive strains of sigma virus were compared for their resistance to sedimentation in Ringer solution. One of the temperature sensitive strains undergoes a severe loss of infectivity, the second only a mild one; the temperature resistant strain is almost entirely recoverable. For both types of strains, the percentage of recovered infectiveness after sedimentation is improved if Ringer solution is replaced by 0.25 m saccharose.
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Plus, N. Comparative resistance to sedimentation of three different strains of sigma virus of drosophila. Archiv f Virusforschung 25, 352–358 (1968). https://doi.org/10.1007/BF01556563
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DOI: https://doi.org/10.1007/BF01556563