Streptococcus pneumoniae. Coloured transmission electron micrograph (TEM) of a section through Streptococcus pneumoniae bacteria. These Gram- positive bacteria are spherical in shape (cocci) and non-motile. They are usually found in pairs,as here,but do form short chains or clusters. The cell wall is visible with inner cell contents appearing granular. They secrete a capsule which is associated with certain pathogenic states. Streptococcus pneumoniae occurs both as a healthy commensal and a pathogen in the human respiratory tract. When pathogenic,it is a cause of pneumonia,pleurisy,peritonitis and meningitis. Magnification: x24,000 at 6.45cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lounatmaa, Dr. Kari |
Bildgröße: | 2940 px × 3942 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |