Plant stomata. Artwork of a section through a leaf showing a stoma.Stomata are pores in the epidermis of the leaf and the site of gaseous exchange in the plant. The opening and closing of the stomata is controlled by semi-circular guard cells. When the guard cells are turgid the stomata are open and when they are flaccid the stomata are closed. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Leroy, Francis / Biocosmos |
Taille de l’image : | 5000 px × 3524 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |