Characterization of Entero- and Uro-Pathogenic Escherichia coli

Autor: Owan, Tomoko, Honma, Yasuko
Jazyk: japonština
Rok vydání: 1994
Předmět:
Zdroj: 琉球医学会誌 = Ryukyu Medical Journal. 14(4):231-234
ISSN: 1346-888X
Popis: Fifty strains of diarrheagenic E. coli (isolated from human diarrheal stool specimens) and 49 strains of uropathogenic E. coli (from human infected urinary specimens) were characterized for their biological behaviors: 38.9% of the latter strains produced hemolysin, while only 10% of the former did so. Resistance to human serum was identified in approximately 20% of the two groups. However, high susceptibility to the bactericidal effect of human serum was more commonly observed in the diarrheagenic strains. Protease productivity, extracellular protein secretion, and presence of Type I pili were observed in an equivalent population of the two groups. In contrast, the presence of hemagglutinin other than Type I pili were observed in 45.9% , of diarrheagenic group compared to 23.1% of the uropathogenic group. SDS-PAGE profiles of whole cell lysates showed some differences in protein distribution between the two groups for some selected strains.
論文
Databáze: OpenAIRE