Soya bean root nodule. Coloured scanning electron micrograph (SEM) of a root nodule (upper centre) on the root of a soya bean (Glycine max) plant. Root nodules occur primarily on the roots of leguminous plants (family Fabaceae). They contain nitrogen fixing bacteria (in this case Bradyrhizobium japonicum) in a symbiotic relationship with the plant. The nodule provides food and shelter for the bacteria,which in turn convert nitrogen in the atmosphere into ammonium,a form that can be used by the plant | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / AMI Images |
Taille de l’image : | 3437 px × 2575 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |