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J Virol. 1968 November; 2(11): 1235-1240
Copyright © 1968 American Society for Microbiology. All Rights Reserved.

Origin of Phospholipid in Bacteriophage PM2

Romilio T. Espejo and Eliana S. Canelo

Department of Virology, Faculty of Medicine, and Department of Biology, Faculty of Chemistry and Pharmacy, University of Chile, Santiago, Chile

ABSTRACT

Phosphatidylethanolamine is the only phosphatide present in purified bacteriophage PM2 when obtained from bacteria grown and infected in minimal medium. The growth cycle of bacteriophage PM2 shows the basic general features described for virulent bacteriophages. PM2 infection of Pseudomonas BAL-31 causes a pronounced increase in deoxyribonucleic acid synthesis, but no detectable effect on the incorporation of phosphorus into lipid. When 32P-prelabeled bacteria are infected with PM2, the specific activity of the phosphatide phosphorus in the virus is almost the same as that in the host bacteria labeled before infection. It is concluded that the viral phosphatide is not synthesized de novo after infection, but it probably is derived from preexisting cellular phosphatidylethanolamine.

J Virol. 1968 November; 2(11): 1235-1240
Copyright © 1968 American Society for Microbiology. All Rights Reserved.



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Copyright © 1968 by the American Society for Microbiology. All rights reserved.