[Differentiation of Yersinia enterocolitica 0:3 and 0:9 by precipitation of CaCO3 at 37 degrees C]. 1987

C Calvo, and I Perez-Garcia, and M A Rivadeneyra, and A Ramos-Cormenzana

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.

UI MeSH Term Description Entries
D011232 Chemical Precipitation The formation of a solid in a solution as a result of a chemical reaction or the aggregation of soluble substances into complexes large enough to fall out of solution. Precipitation, Chemical
D002119 Calcium Carbonate Carbonic acid calcium salt (CaCO3). An odorless, tasteless powder or crystal that occurs in nature. It is used therapeutically as a phosphate buffer in hemodialysis patients and as a calcium supplement. Aragonite,Calcite,Chalk,Limestone,Marble,Milk of Calcium,Vaterite,Calcium Milk,Carbonate, Calcium
D013696 Temperature The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms. Temperatures
D015008 Yersinia enterocolitica A species of the genus YERSINIA, isolated from both man and animal. It is a frequent cause of bacterial gastroenteritis in children. Bacterium enterocoliticum

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