Exposed root of a broad bean plant showing nitrogen fixation nodules formed by Rhizobia, symbiotic bacteria. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Cattlin, Nigel |
Taille de l’image : | 4912 px × 7360 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |