AJCN 19th International Congress of Nutrition
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American Journal of Clinical Nutrition, Vol 32, 266-266, Copyright © 1979 by The American Society for Nutrition

A freeze-fracture study of the filamentous segmented microbe attached to the murine small bowel

J. E. Snellen 1 and D. C. Savage 1

1 From the Department of Microbiology, University of Illinois, Urbana, Illinois 61801

A freeze-fracture study has provided new information about the filamentous segmented microbe known to live in the murine small bowel. The intracellular bodies produced by this microbe appear to arise by a modified sporogenesis so that they are enclosed in an envelope membrane at least prior to release by the filament mother cell. At least some of the intracellular bodies divide while still within the mother cell, suggesting a reproductive role for these structures. The host epithelial membrane remains intact at the site of attachment, but does appear to have a reduced concentration of intramembrane particles. Changes in the host cytoplasm adjacent to the attachment site are documented and interpreted to be a sol-gel transformation that may stabilize the attachment socket.






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Copyright © 1979 by The American Society for Nutrition