[Characteristics of hospital strains of Pseudomonas aeruginosa].
A total of 745 P. aeruginosa strains from patients with purulent inflammatory processes, 216 strains from the environment of a surgical hospital and 35 strains from carriers were studied with respect to 30 cultural and biochemical signs of P. aeruginosa. 19.8% of the strains were found to form no pigment, and in 14.8% of the strains delayed pigment formation was observed (on days 3-10). The most stable signs were motility (99.6%), growth in Simmons citrate agar (97.6%), growth at 42 degrees C (97.4%), arginine decarboxylase activity (96.8%). In 77.0% of the strains glucose assimilation in Hiss liquid medium, in 85.6% glucose oxidation in the OF test, in 90.8% the formation of urease and in 93.2% the formation of gelatinase were observed. Among the strains isolated from the environment, P. aeruginosa variants, atypical with respect to their main differentiating signs, were isolated significantly more frequently.
D002353:Carrier State / Q000382:microbiology*; D003428:Cross Infection / Q000382:microbiology*; D003470:Culture Media / Q000378:metabolism; D004783:Environmental Microbiology; D006801:Humans; D009068:Movement; D010860:Pigments, Biological / Q000096:biosynthesis; D011552:Pseudomonas Infections / Q000382:microbiology*; D011550:Pseudomonas aeruginosa / Q000145:classification / Q000302:isolation & purification / Q000378:metabolism*
D003470:Culture Media; D010860:Pigments, Biological
Kharakteristika gospital'nykh shtammov Pseudomonas aeruginosa.