Tomato leaf. Light micrograph of a transverse section through the midrib of a tomato (Lycopersicum esculentum) leaf. The upper and lower epidermis on the surfaces of the leaf are blue. Under the upper epidermis are palisade cells (yellow),which contain chloroplasts,the site of photosynthesis. Within the midrib is a vascular bundle,composed of xylem (red) and phloem (dark blue) cells,which transport water and carbohydrates around the plant respectively. Magnification: x14 when printed at 10 centimetres wide | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wheeler, Dr. Keith |
Taille de l’image : | 5616 px × 3744 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |