Coloured transmission electron micrograph (TEM) of Cyanobacterium (Nostoc sp.) Gram-negative, oxygenic, photosynthetic, filamentous cyanobacterium (prokaryote). Note the thylakoids (photosynthetic membranes) and polyhedral bodies. Lichens often are associated with Nostoc in a symbiotic relationship. Specialized cells in the Nostoc filament, called heterocysts, fix atmospheric nitrogen gas into amino acids and thus progressively enrich the soil with nitrogen for plant growth. Magnification: x4, 560 when shortest axis printed at 25 millimetres. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / DENNIS KUNKEL MICROSCOPY |
Bildgröße: | 4184 px × 3300 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |