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Science 29 May 1964:
Vol. 144. no. 3622, pp. 1127 - 1130
DOI: 10.1126/science.144.3622.1127
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Articles

Blue-Green Algal Virus LPP-1: Purification and Partial Characterization

I. R. Schneider 1, T. O. Diener 1, and Robert S. Safferman 2

1 Plant Virology Laboratory, United States Department of Agriculture, Beltsville, Maryland
2 Robert A. Taft Sanitary Engineering Center, United States Department of Health, Education and Welfare, Cincinnati, Ohio

The blue-green algal virus LPP-1 was concentrated by ultrafiltration and purified by density-gradient and differential centrifugation. The virus contains DNA and has a sedimentation coefficient of 548S. Electron micrographs of purified viral preparations show that the polyhedral particles have short tails, which are approximately one-fourth as long as the diameter of the head. Data presented in this report indicate that the blue-green algal virus more closely resembles bacteriophages than viruses infecting higher plants.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)