Physicochemical properties of tipula iridescent virus |
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Authors: | Kalmakoff J Tremaine J H |
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Institution: | Department of Microbiology, The University of British Columbia, and Canada Department of Agriculture Research Station, Vancouver, British Columbia, Canada. |
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Abstract: | The molecular weight of Tipula iridescent virus, based on sedimentation and diffusion coefficients, was 5.51 × 108, with hydration of 0.57 g of water per g of virus. Deoxyribonucleic acid content, based on total inorganic phosphorus liberated, was 19 ± 0.2%. At 260 mμ, the virus gave an uncorrected absorbance of 18.2 cm2/mg of virus and a light-scattering corrected absorbance of 9.8 cm2/mg of virus. Amino acid analyses of the virus protein revealed a remarkable similarity to Sericesthis iridescent virus. The possibility is discussed that the four iridescent insect viruses reported to date bear a strain relationship. |
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