Coloured transmission electron micrograph (TEM) of the bacteria Clostridium botulinum,cause of botulism food poisoning in humans,in the process of sporulation (spore formation). A spore- releasing sequence is seen. The yellow bacterl cell at centre left is in the early vegetative stage & contains a spore (red). The yellow cell at top is in an advanced vegetative stage with a well-developed spore; below it is a blue cell whose spore (red) is being released. The blue cell at bottom has released its spore,& its cell contents are breaking down. Spores enable C. botulinum to survive unfavourable conditions. Magnification: x12,500 at 6x4. 5cm size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Dowsett, A.B. |
Bildgröße: | 2755 px × 3646 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |