Nitrogen-fixing nodules on the roots of a pea plant (Pisum sativum) allow the plant to utilize free nitrogen in the atmosphere and soil. Symbiotic bacteria in the nodules fix the nitogen,transforming it into a form useable to the plant. 2X | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Spencer, Hugh |
Bildgröße: | 3608 px × 2332 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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