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J Bacteriol. 1967 March; 93(3): 1160-1173
Copyright © 1967 American Society for Microbiology. All Rights Reserved.

Clostridium Spores with Ribbon-like Appendages

Department of Microbiology and Electron Microscope Laboratory, The University of Texas, Austin, Texas

ABSTRACT

Spores of Clostridium sp. N1 are characterized by numerous broad ribbon-like appendages attached to one end. The appendages are two to three times the length of the spore and, at their maximal dimension, may be two-thirds the width of the spore. They are attached to the spore body by a common trunk which is continuous with the outer spore coat. Each appendage is a multilayered structure and is enclosed in an amorphous material. Details of spore and appendage formation are described, and appendage ultrastructural features are presented. The function of the appendages is not known.