Yersinia enterocolitica enterotoxins and their pathogenicity in rabbits*


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Authors

  • J S MAHAL
  • AJIT SINGH
  • D K SHARMA
  • R S BRAR

Abstract

The ileal loop response to study enterotoxin production by 8 strains of Y. enterocolitica varied from 555 to 692 alpha l/cm), The maximum fluid accumulation was observed at 4 hr time interval. At 121°C for 15 min, 62.46% of enterotoxin activity was retained, hut was completely lost in 5 strains when heated for 2 min. Heat stability of enterotoxin was further confirmed by infant mouse assay. Culture Supermatants of all the strains were positive for skin permeability factor(PF)activity, Maximum PF activity was given by strain R65 (342 mm2). Marked histopathological alterations in various tissues of rabbits were observed after intravenous and intraluminal injections of enteroloxins.

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Author Biographies

  • J S MAHAL
    M.Sc. Student, Punjab Agricultural University, Ludhiana, Punjab 141 004
  • AJIT SINGH
    Senior Microbiologist, Punjab Agricultural University, Ludhiana, Punjab 141 004

  • D K SHARMA

    Assistant Professor, Veterinary Public Healthy.

  • R S BRAR
    Assistant Professor, Veterinary Pathology. Punjab Agricultural University, Ludhiana, Punjab 141 004

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Issue

Vol. 64 No. 8 (1994)

Section

Articles

License

The copyright of the articles published in The Indian Journal of Animal Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.

How to Cite

MAHAL, J. S., SINGH, A., SHARMA, D. K., & BRAR, R. S. (2013). Yersinia enterocolitica enterotoxins and their pathogenicity in rabbits*. The Indian Journal of Animal Sciences, 64(8). https://epubs.icar.org.in/index.php/IJAnS/article/view/30828