Root nodule, SEM

Numéro d’image : 13244974
Root nodule, SEM
Coloured scanning electron micrograph (SEM) of a section through a root nodule from a clover plant (Trifolium sp.) formed by Rhizobium sp. nitrogen-fixing soil bacteria (blue). The plant and the bacteria have a symbiotic relationship. The bacteria converts (fixes) atmospheric nitrogen in the soil to ammonia. The plant cannot carry out this process itself, but it is vital for the production of amino acids, the building blocks of proteins. In return the plant passes carbohydrates produced during photosynthesis to the bacteria for use as an energy source. The bacteria enters the plant through its root hairs. Magnification: x140 when printed 15cm wide.
Licence : Droits gérés
Crédit: Science Photo Library / EYE OF SCIENCE
Taille de l’image : 6400 px × 5513 px
Model Release : Non requis
Property Release : Non requis
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