Root nodules for nitrogen fixation formed by Rhizobium bacteria on the roots of a broad bean plant. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Source / Nigel Cattlin |
Taille de l’image : | 6016 px × 4016 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |