title: [Biological properties of bacteria of the species Shigella flexneri].
abstract: Some biological properties of S. flexneri have been studied. The strains of this bacterial species have been shown to produce DNAase in 98.8 +/- 0.77% of cases and RNAase in 97.4 +/- 1.5% of cases. The capacity for the positive reaction with Congo red as early as after 24-hour incubation in the thermostat has proved to be characteristic of S. flexneri (91.1 +/- 3.6%). If stored at 4 degrees C in semiliquid agar, S. flexneri cultures have been found to retain their capacity for producing the above-mentioned enzymes as long as 10-13 years. All S. flexneri serovars under study, with the exception of serovar 6, have shown high activity in the manifestation of their properties.
authors.forename: N A
authors.initials: NA
authors.lastname: Polikarpov
authors.forename: N G
authors.initials: NG
authors.lastname: Ponamareva
mesh_terms: D002353:Carrier State / Q000382:microbiology; D003851:Deoxyribonucleases / Q000032:analysis; D004405:Dysentery, Bacillary / Q000382:microbiology; D004768:Enterotoxins / Q000032:analysis; D006801:Humans; D012260:Ribonucleases / Q000032:analysis; D012703:Serotyping; D012763:Shigella flexneri / Q000032:analysis / Q000145:classification / Q000302:isolation & purification / Q000502:physiology*
chemical_list: D004768:Enterotoxins; D003851:Deoxyribonucleases; D012260:Ribonucleases
vernacular_title: Biologicheskie svoĭstva bakteriĭ vida Shigella flexneri.