Legume root nodules,light micrograph

Numéro d’image : 11536241
Legume root nodules,light micrograph
Legume root nodules. Light micrograph of sections through two root nodules from a broad bean plant (Vicia faber). These root nodules are full of nitrogen-fixing bacteria,and are characteristic of the family Leguminosae,which includes the legume vegetables such as broad beans and peas. Nitrogen-fixing is where the bacteria use nitrogen gas in the air to form nitrates,along with other nitrogen-containing chemicals. These are then used by the plant in its metabolism. This is a vital part of the nitrogen cycle,by which atmospheric nitrogen passes from the air to living organisms
Licence : Droits gérés
Crédit: Science Photo Library / Wheeler, Dr. Keith
Taille de l’image : 6142 px × 4606 px
Model Release : Non requis
Property Release : Non requis
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