The Heat-Stable Enterotoxin(s) of Yersinia enterocolitica in Foods

1984 ◽  
Author(s):  
Stephen L. Taylor ◽  
Michael P. Doyle ◽  
Alison R. Behling
Keyword(s):  
Yersinia Enterocolitica ◽  
Heat Stable

Enterotoxin Production in Two-Culture Media by Yersinia enterocolitica Isolated from Sausages, Porcine Ceca and Tongues in San Luis, Argentina

1991 ◽  
Vol 54 (1) ◽  
pp. 47-49
Author(s):  
ANA MARIA S. DE GUZMAN ◽  
NORMA B. B. DE PEDERIVA ◽  
LUIS S. MAYORGA ◽  
BLAS MICALIZZI
Keyword(s):  
Body Weight ◽  
Yersinia Enterocolitica ◽  
Culture Media ◽  
Infant Mouse ◽  
San Luis ◽  
Heat Stable ◽  
Enterotoxin Production ◽  
Casamino Acids

Twenty-six strains of Yersinia enterocolitica isolated from fresh sausages, bovine tongues, and porcine ceca and tongues were evaluated for the production of heat-stable enterotoxin (ST, infant mouse test) in trypticase soy broth (TSB) and casamino acids broth (CAB). The gut weight/body weight ratios obtained with the two media were similar. Sixteen strains produced ST in both media; nine strains did not. Strain 23 produced ST in CAB but not in TSB.

scholarly journals Yersinia enterocolitica Isolates from Wild Boars Hunted in Lower Saxony, Germany

2015 ◽  
Vol 81 (14) ◽  
pp. 4835-4840 ◽  
Author(s):  
Alexandra von Altrock ◽  
Diana Seinige ◽  
Corinna Kehrenberg
Keyword(s):  
Yersinia Enterocolitica ◽  
Clinical Signs ◽  
Virulence Plasmid ◽  
Lower Saxony ◽  
Culture Methods ◽  
Hunting Season ◽  
Content Type ◽  
Wild Boars ◽  
Heat Stable ◽  
High Degree

ABSTRACTYersiniosis is strongly associated with the consumption of pork contaminated with enteropathogenicYersinia enterocolitica, which is harbored by domestic pigs without showing clinical signs of disease. In contrast to data onY. enterocoliticaisolated from conventionally reared swine, investigations into the occurrence ofY. enterocoliticain wild boars in Germany are rare. The objectives of the study were to get knowledge about these bacteria and their occurrence in wild boars hunted in northern Germany by isolation of the bacteria from the tonsils, identification of the bioserotypes, determination of selected virulence factors, macrorestriction analysis, multilocus sequence typing (MLST), and testing of antimicrobial susceptibility. Altogether, tonsils from 17.1% of 111 tested wild boars were positive forY. enterocoliticaby culture methods. All but two isolates belonged to biotype (BT) 1A, with the majority of isolates bearing aystBnucleotide sequence which was revealed to have 85% identity to internal regions ofY. enterocoliticaheat-stable enterotoxin type B genes. The remainingY. enterocoliticaisolates were identified to be BT 1B and did not carry the virulence plasmid. However, two BT 1A isolates carried theailgene. Macrorestriction analysis and results from MLST showed a high degree of genetic diversity of the isolates, although the region where the samples were taken was restricted to Lower Saxony, Germany, and wild boars were shot during one hunting season. In conclusion, mostY. enterocoliticaisolates from wild boars investigated in this study belonged to biotype 1A. EnteropathogenicY. enterocoliticabioserotypes 4/O:3 and 2/O:9, usually harbored by commercially raised pigs in Europe, could not be identified.

Primary structure of heat-stable enterotoxin produced by Yersinia enterocolitica

1984 ◽  
Vol 125 (3) ◽  
pp. 845-851 ◽  
Author(s):  
Toshifumi Takao ◽  
Noriko Tominaga ◽  
Yasutsugu Shimonishi ◽  
Saburo Hara ◽  
Takashi Inoue ◽  
...  
Keyword(s):  
Yersinia Enterocolitica ◽  
Primary Structure ◽  
Heat Stable

scholarly journals Isolation, primary structure and synthesis of heat-stable enterotoxin produced by Yersinia enterocolitica

1985 ◽  
Vol 152 (1) ◽  
pp. 205-206
Author(s):  
Toshifumi TAKAO ◽  
Noriko TOMINAGA ◽  
Shoko YOSHIMURA ◽  
Yasutsugu SHIMONISHI ◽  
Saburo HARA ◽  
...  
Keyword(s):  
Yersinia Enterocolitica ◽  
Primary Structure ◽  
Heat Stable

15 ELABORATION BY YERSINIA ENTEROCOLITICA (Ye) OF A SECOND HEAT STABLE ENTEROTOXIN

1992 ◽  
Vol 15 (3) ◽  
pp. 343
Author(s):  
A. Fasano ◽  
R. Robins-Browne ◽  
A. M. Bordun ◽  
J. G. Morris
Keyword(s):  
Yersinia Enterocolitica ◽  
Heat Stable
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