RESUMO
The fermenting ability of 380 strains of Yersinia spp. on esculin, L-fucose and D-arabitol was studied. All the strains of Y. enterocolitica belonging to biotype 2 serotype 0:9 and to biotype 4 serotype 0:3 failed to utilize such carbohydrates; the strains belonging to the other bioserotypes as well as the strains of Y. enterocolitica-like showed different reactions.
Assuntos
Esculina/metabolismo , Flavonoides/metabolismo , Fucose/metabolismo , Álcoois Açúcares/metabolismo , Yersinia/metabolismo , Animais , Fermentação , Humanos , Yersinia/classificaçãoRESUMO
One hundred and thirty one strains of Yersinia sp. isolated in Italy from 1979 to 1982 were examined for their ability to produce hemolysis on blood agar. Hemolytic activity was shown by seventy four strains on chicken blood agar and rabbit blood agar with 0.5% lecithin at 28 degrees C. No hemolytic activity was shown at 37 degrees C.
Assuntos
Hemólise , Yersinia/imunologia , Ágar , Animais , Sangue , Galinhas , Microbiologia de Alimentos , Humanos , Lipase/metabolismo , Coelhos , Especificidade da Espécie , Temperatura , Microbiologia da Água , Yersinia/enzimologia , Yersinia enterocolitica/enzimologia , Yersinia enterocolitica/imunologiaRESUMO
One hundred and fifty five strains of Yersinia sp. isolated in Italy from 1981 through 1983 were studied for their ability to utilize esculin, D-lixose, L-fucose and D-arabitol. All the strains belonging to biotype 4 serotype 3 isolated from humans failed to ferment such carbohydrates. The strains of other bioserotypes showed different biochemical reactions.
Assuntos
Yersinia/metabolismo , Animais , Esculina/metabolismo , Fermentação , Fucose/metabolismo , Humanos , Álcoois Açúcares/metabolismo , Yersinia/classificaçãoRESUMO
665 samples of milk, 20 of bovine faeces, 7 of human faeces of cowherd and some water samples are examined. 44 strains of Yersinia sp. are isolated of which 16 from patients and carriers in the same area. Strains belonging to the same bioserotype have been isolated from more than one source. Possibility of reciprocal contamination is discussed.
