Nitrosospira bacterium. Transmission electron micrograph (TEM) of a cross-fractured and freeze- etched nitrogen-fixing bacterium (Nitrosospira sp. ). Most of the interior of the bacterium consists of cytoplasm. This is surrounded by the cell envelope. This Gram-negative soil bacterium obtains energy from ammonia and in the process converts it into nitrites. Other bacteria then convert the nitrites into nitrates,the form of nitrogen used by plants. Magnification: x150,000 at 6.5x8.5 inch size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Lounatmaa, Dr. Kari |
Taille de l’image : | 3693 px × 4831 px |
Model Release : | Non requis |
Property Release : | Non requis |
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