Erwinnia chrysanthemi. Coloured Transmission Electron Micrograph of the bacterium Erwinnia chrysanthemi. Long flagellae can be seen; shorter filaments known as pili are also visible on the cell wall. E. chrysanthemi is a Gram-negative rod- shaped bacteria of the Enterobacteriaceae group. In nature,it causes vascular wilting in a wide range of plants. In the laboratory,this bacteria is grown for the enzyme L-asparaginase which it contains. The enzyme is extracted from E. chrysanthemi and purified as a drug for acute lymphoblastic leukaemia (ALL). ALL is a cancer of white blood cells found largely in children. Magnification: x24,000 at 6x4. 5cm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Dowsett, A.B. |
Taille de l’image : | 2690 px × 3543 px |
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Property Release : | Non requis |
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