title: [Lysogeny in Pasteurella multocida].
abstract: Studied was the possibility of lysis-producing factors (the phenomenon of lysogeny) with 59 strains of Pastuerella multocida isolated in Bulgaria, Cuba, and Czechoslovakia. It was found that eleven of them were lysogenic in terms that a total of 12 bacteriophage strains were isolated from them; one of them yielded 2 phages. Established were three different indicator strains of Pasteurella multocida-97, SHD, and R-II--by means of which 3 different groups of P. multocida phages were isolated. The latter were stabilized and allowed to multiply up to 10(11) phage particles per 1 cc through continuous passaging, and they could be be stored at + 4 degrees C. In accordance with the host strain for multiplying the isolated P. multocida phages were divided into three different groups: phages 3, 4, 5, 6, 22, and Sl fell into group II, and phages 1075 and S-2--to group III.
mesh_terms: D000818:Animals; D001434:Bacteriophage Typing; D001435:Bacteriophages; D001717:Birds / Q000382:microbiology; D002031:Bulgaria; D003462:Cuba; D003604:Czechoslovakia; D008242:Lysogeny; D008322:Mammals / Q000382:microbiology; D010325:Pasteurella / Q000302:isolation & purification; D013696:Temperature; D014774:Virulence
vernacular_title: Lizogenniia pri Pasteurella multocida