Bacteria colony. Illustration of a colony of Staphylococcus aureus,a species of spherical,Gram positive,non-motile bacteria. Typically this bacteria is found in grape-like clusters. In the foreground,one bacterium is cut through to show: cell wall (outer purple),plasma membrane (white line),nucleoid of genetic material (purple),and granules in the cytoplasm (red). Staphylococcus species secrete exotoxins and many cause disease in humans: S. aureus is found on skin and mucous membranes. It causes boils and internal abscesses,and is the commonest cause of pyogenic (pus- forming) infections. Sometimes present harmlessly in the body,treatment is with antibiotic drugs | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Bavosi, John |
Taille de l’image : | 3786 px × 5120 px |
Model Release : | Non requis |
Property Release : | Non requis |
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