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J Bacteriol. 1972 December; 112(3): 1416-1419
Copyright © 1972 American Society for Microbiology. All Rights Reserved.

Structural Changes Associated with Extraction of Group E Spore Antigen of Clostridium botulinum

Department of Microbiology, University of Manitoba, Winnipeg, Manitoba, and Department of Microbiology and Immunology, Queen's University, Kingston, Ontario, Canada

ABSTRACT

Spores of type E Beluga strain of Clostridium botulinum, which were hydrolyzed with HCl to remove the spore-specific antigen, showed a spore coat which was thinner and projected into the exosporium with multiple protuberances. The changes observed suggest that the antigen is a component of the spore coat connected with the maintenance of rigidity.