Fusobacterium,illustration

Numéro d’image : 12059145
Fusobacterium,illustration
Fusobacterium sp. bacteria,computer illustration. Two main species are F. nucleatum and F. necrophorum. Fusobacteria are gram- negative bacilli (rod-shaped bacteria),typically long and tapered at both ends (fusiform). Fusobacterium sp. are obligate animal parasites,forming part of the intestinal flora of a range of organisms from termites to primates,and including humans. F. nucleatum occurs as the main filamentous bacteria in the dental plaque that forms on the surface of teeth. Plaque is a cause of periodontal disease and tooth decay in humans. F. necrophorum is responsible for several diseases,such as necrotising tonsillitis,postanginal septicaemia and Lemierre's disease
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Crédit: Science Photo Library / Kon, Kateryna
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