Section through leaf of marram grass
Numéro d’image : 11537185
| Marram grass leaf. Coloured scanning electron micrograph (SEM) of a transverse section through a leaf of marram grass,Ammophila arenaria. The leaf surface (epidermis) is covered in a dense wax,which protects the plant against drying conditions. The upper surface of the leaf is highly grooved and covered with single-celled hairs. These hairs are to discourage foraging animals and also reduce air currents and so help prevent evaporation. At the base of each fold is a round vascular bundle containing xylem vessels (large oval spaces) and smaller phloem cells used to transport water and food through the leaf. Magnification: x46 at 5x7cm size. Magnification: x110 at 5x7ins size | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Power And Syred |
| Taille de l’image : | 4961 px × 3864 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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