Observations on the Relationship between Viruses of the Psittacosis-Lymphogranuloma Group and the Rickettsiae

Abstract

Summary: Changes in the metabolism of the chick embryo host cell produced by p-aminobenzoic acid or sodium cyanide did not influence the multiplication of psittacosis or Newcastle virus. A suspension of psittacosis virus was unable to catalyse oxygen uptake in presence of glutamic acid, casein hydrolysate, succinic or pyruvic acids. The results suggest that, in its relation to certain metabolic activities of the host cell, psittacosis virus more nearly resembles the true viruses than the Rickettsiae.