Homogeneity and heterogeneity of toxins produced by Clostridium botulinum type C and D strains.

Infection and Immunity
K OgumaS Kubo

Abstract

Five Clostridium botulinum strains were used in the present work, two of type C, C-Stockholm (C-ST) and C-CB19, and three of type D, D-South African (D-SA), D-1873, and D-CB16. The toxins, except for those of C-CB19 and D-CB16, were purified, and antisera were prepared in rabbits. To clarify the antigenicity of the toxins, neutralization and agar gel double-diffusion tests were performed. Anti-C-ST toxin serum neutralized two kinds of type C(1) toxin to a similar extent. Antisera against D-SA and D-1873 toxins, however, showed different neutralizing activity toward three type D toxins. Precipitin lines formed between D-SA and D-1873 toxins, and their antisera spurred to each other. From anti-D-SA toxin serum, two neutralizing fractions, one which neutralized D-SA, D-1873, and D-CB16 and one which neutralized only D-SA, were obtained. These results indicate that the antigenicities of D-SA and D-1873 toxins are not identical. Anti-C-ST toxin serum produced cross-neutralization on type D toxins, although the neutralization titer differed depending on the kind of toxin used. A precipitin line was formed with D-SA toxin, but not with D-1873; the developed line spurred to the C-ST toxin precipitin line. Two anti-D toxin sera also cau...Continue Reading

References

Feb 1, 1978·Applied and Environmental Microbiology·K OgumaH Iida
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Jan 5, 1972·Nature: New Biology·M W EklundS M Reed
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Citations

May 13, 2004·Clinical and Diagnostic Laboratory Immunology·Hideyuki ArimitsuKeiji Oguma
May 11, 2011·The FEBS Journal·Abby R KrokenJoseph T Barbieri
Mar 1, 1991·Australian Veterinary Journal·R J Thomas
May 7, 2021·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Anne M Masters, Dieter G Palmer
Jun 1, 1984·Applied and Environmental Microbiology·J O OchandaS Kubo
Jan 1, 1982·Pharmacology & Therapeutics·G Sakaguchi
Sep 1, 1989·Infection and Immunity·K MoriishiK Oguma

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