[Differentiation of Yersinia enterocolitica 0:3 and 0:9 by precipitation of CaCO3 at 37 degrees C].
Precipitation of CaCO3 by different Yersinia strains on B-4 agar at 25 and 37 degrees C was studied. The 185 Yersinia strains examined produced crystals at 25 degrees C, but only 121 strains produced crystal at 37 degrees C. Strains of serotype 0:9 produced crystals at 37 degrees C, whereas strains of serotype 0:3 failed to do so. The calcium carbonate precipitation test at 37 degrees C should enable a differentiation between the two serotypes incriminated in human pathology in Europe.
D002119:Calcium Carbonate / Q000378:metabolism*; D011232:Chemical Precipitation; D013696:Temperature; D015008:Yersinia enterocolitica / Q000145:classification* / Q000378:metabolism
D002119:Calcium Carbonate
Différenciation de Yersinia enterocolitica 0:3 et 0:9 par la précipitation à 37 degr'es C du CaCO3.