Corynebacterium diptheriae,TEM

Numéro d’image : 12045810
Corynebacterium diptheriae,TEM
Colour enhanced TEM of ultra-thin sections of Corynebacterium diptheriae. Unusual shape of bacterium contains large amounts of glycogen granules. A membrane bound structure dominates the lower interior of the cell. Mesosome (an infolding of the plasma membrane as well as a septum,involved in division) growing inward from the cell wall are seen. Corynebacteria are rod-shaped,gram-positive and nonmotile. Though many of the species are pathogens in domestic animals,birds and plants,the most important is the species C. diptheriae--the causative agent of diptheria in humans. The disease is characterized by the formation of a false membrane on any mucous surface and occasionally on the skin. In nasal diptheria,fever is a much more evident symptom. Adenitis is often severe,with serious discharge from the nostrils,which may be blood tinged. Myocarditids and late neuritis are commonly present. TEM Magnification = x26,500 at 70mm
Licence : Droits gérés
Crédit: Science Photo Library / Kim, Kwangshin
Taille de l’image : 3037 px × 2550 px
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Property Release : Non requis
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