False-colour transmission electron micrograph (TEM) of a single Bacillus subtilis bacterium (termed the Hay Bacillus). This species of aerobic rod-shaped Gram-positive bacteria is seen at the end of a process of spore formation (sporulation). At lower centre,it has developed an endospore with many membranes (red,green) forming a thick protective coat. This is a resting phase induced by adverse conditions,and the spore will germinate when conditions become favourable. B. subtilis is sometimes pathogenic on humans: causing severe eye infections (iridocyclitis or panopthalmitis). Magnification: x860 at 6x7cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CNRI |
Taille de l’image : | 3222 px × 4300 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |